All posts by mfdrc

Surviving Missing Futon Frame Hardware Nightmares

There seems to be quite a few of us who have owned a futon frame and ended up losing the connecting hardware at one time or another. I myself bought a futon from the retail store I worked in for a number of years back in the early 1990s when futons were all the rage. Maybe you purchased your futon in college, purchased it from a friend or maybe made the purchase for a family room. If you're lucky to live out your life in the same house or apartment there will never be a need to move your futon except except to a different room or location. Obtaining replacement futon frame hardware involves several steps approached in order to locate exactly what you need.

In the first place do not panic just yet. Without the hardware to attach everything back together you're in some serious trouble. However there are ways to obtain what you need. At this point we could explain the many benefits of using a small bag to contain the hardware and attach it to a part of the frame with heavy packing tape so it's easily found. Who am I kidding though? I've moved mine now about three times and each time I ended up missing a bolt, a barrel nut, a nylon roller here and there. Heck, I was lucky I had all the wood components show up at each new move let alone any hardware that happened to make it as well. Besides, is not moving your home stressful enough without having to keep track of a small bag of metal hardware among a sea of ​​furniture, clothing, dishes, toys and appliances?

Pursuing this further we must calmly step back and think for a moment. Yes, we're stressed out and fuming at either our spouse or the moving company for losing the futon hardware but we need to move past that now. To be sure the futon needs our help and we're the only ones who can do it at this point. It's time for us to go through the steps of obtaining replacement hardware and there is a specific order in which we do this to obtain the fastest results. I would suggest the following steps to start tracking down replacement hardware as soon as possible.

First – identify your futon frame.
Having worked retail, it's quite possibly the toughest situation when a customer comes into the store requiring assistance but can not identify the product to the salesperson or service individual when requesting parts. Granted you're going to have to do a little research by pulling your receipt when you bought the futon from the store and identify the model or name of the futon. If you inherited the futon, found it by the side of the road or bought it at a garage sale you're in for a tough road ahead. Fear not however as the internet can be used to help you find the design and attach a name to it for use in tracking down hardware. Be aware that there are dozens of manufacturers out there using different hardware in their frames including many that have since closed their doors. Hopefully the manufacturer of your frame is still around.

Second – speak to the retailer.
Of course if you purchased your futon frame through a local retail store it's time to head down there and see if they can track down the hardware for your frame. Bring your receipt. If you do not have a receipt, then bring an image of the futon frame with you. Hopefully the salesperson or service representative is knowledgeable about the products that they've carried in the past. Best case scenario, they either can provide you with the name of the manufacturer with contact information or have the parts on hand to get you back up and running. Worst case scenario the store you purchased it is out of business or if the store is still around they have no clue about the product anymore.

Third – search online.
Supposing we've hit the worse case scenario it's time to use the web to search for the manufacturer or the name of the style of futon you have. I'd suggest using Google, Bing or Yahoo and use the name adding the word futon to the search. If you were not able to locate a name you're going to have to become a very good spotter and sift through the many images of futon frames till you find one that is very close to what you have. Identify the name of the style and the manufacturer and then proceed to locate the manufacturer of the futon frame.

Fourth – speak to the manufacturer.
Assuming the retailer did not have parts but could identify the manufacturer for you then at least have something to go on. Perhaps you were able to locate your frame style through the search engines. Again, search online using the websites previously discussed using the name of the manufacturer. You'll likely get some online retail stores off of the search. Filter them out visually until you find a link for the manufacturer. Most do have websites, locate a contact phone number or email address and contact them for information on obtaining hardware. If you're unable to locate the manufacturer's website go ahead and contact one of the many futon stores that pop-up in the search results and email them with your issue and ask if they can either sell you hardware or point you in the right direction For finding the manufacturer in hopes of tracking down hardware.

Finally – the last resort.
If you were unable to determine the name of the futon frame or the name of the manufacturer you are indeed in a tight spot. At this point your options are limited to heading down to a hardware store and seeing if you can locate some generic parts that might get you back up and running. The problem will be in the way of connecting bolts and barrel nuts and getting the right lengths if available. I would suggest taking one of the wood arms and a stretcher rail with you to the store. Begin plugging in different bolts and nuts till you find a combination that connects correctly. You'll also need to track down connecting pins, washers and clips for the seat and back section as well as the four nylon rollers that most futon frames use on the back rest. If you're lucky these may still be attached to the backrest deck making your job a bit easier.

In conclusion we've discussed the issues presented with lost futon hardware and how to go about tracking down the hardware you need. Basically identify your frame through a receipt or spotting it online. Visit the retailer store you purchased it from and obtain parts through them if they are still open. If you purchased it privately or inherited the frame track down the manufacturer using a search engine of your choice and speak to them about ordering replacements. If you are not able to locate the manufacturer but have found stores online contact one of them to see if they can sell you hardware. If all else fails visit the local hardware store with your wood futon sections in hand and begin trying bolts and nuts till you find some that work. I sincerely hope you're able to obtain the needed hardware to get your futon frame back up and running. I wish you the best of luck to you and your futon.



Source by Phil Pendleton

Understanding the Significance of Computer Hardware

We are living in an age that is highly influenced by technology. Most of the activities we need to do now are automatic or computerized. Of all the technological developments achieved in the recent past, one significant tool that got developed and which will certainly keep influencing our lives is the computer. You would agree that computers play a very basic role in our daily life, just like the television and the cell phone. We are already at a stage where life will be difficult without a computer. That makes it important to understand the way a computer works, and then be informed of what we should do if it stops working. The most important part of any computer is its hardware, in the absence of which it just can not function.

If you are really keen to assess what has gone wrong with your computer when it stops working, you should understand the working and constituents of its hardware. You should especially have solid knowledge about the computer hardware when you want to undertake its troubleshooting on your own. One important part of the hardware is the RAM memory of any computer. For running any program or application, any computer needs a RAM memory. Other than that, if the computer has a RAM with specifications that are not compatible with the programs it is expected to run, its operation will be slowed down and it would almost crawl. When choosing a computer, you need to ensure that its hardware is not outdated, otherwise you'll have to upgrade it in order to be able to use the intended program.

You must take certain basic precautions while handling the hardware of computers. The most essential precaution is to ensure that the power supply to your computer is switched off, else it could cause an electric shock. Then, before you touch any part within the computer, ensure that you are not carrying any electric charge by connecting to a grounded piece of metal or you may procure an anti-static mat or wrist band available in the market. While inspecting the hardware components, you should look for broken or damaged component, as these are most likely the reasons for the computer malfunction. If a component does not fit in the slot, you are probably trying to fit it in the incorrect slot.

Once you know the hardware employed in your computer and the role it plays in the functionality of your computer, you'll be in a position to undertake its troubleshooting when it malfunctions. Each piece of hardware contributes to the successful function of the computer. To a large extent, the working of a computer depends on the quality of its hardware, making it imperative to keep it in good condition.



Source by Karina Popa

The 4 Elements That Makes Up A Personal Computer System

There are 4 elements that make up a personal computer system: the user, software, hardware and the electricity all working together for the whole system. Each of these elements is essential to the system itself.

The user is the person’s who perform the task using the computer system. The nature of the task depends upon the application program or software that is needed to perform the task. The software that the user used requires certain hardware components to function properly.

The hardwares of the personal computer system are made up of its equipment that are usually connected (the computer, monitor, printer and so on). It is defined as hardwares because you can physically touch these components. The programs are called softwares since their function can only be used when the computer is turn ON. Software is a set of coded instructions that the computer uses in order to carry out the user’s tasks.

The user can only use the computer when it is turned ON. Without any electrical power to run through the personal computer system, it will not function. The ability of the personal computer system to control its components is through a series of on / off signals.

Here is how it works, when a user tries to type a document or a letter using his / her personal computer. The first thing the user do is to turn ON the power for the computer. Choosing a Word Processor software in order to write the document. The user uses the hardware such as the keyboard to write the content of the document; The typed document is then displayed onto the monitor screen. After the user finished writing his / her document. The user will use the software to instruct the printer to print the document. The software works together with the hardware components (the keyboard, monitor and printer) to accomplish the task that the user requested.

All of the four elements: the electrical power, hardware, software and the user work together to make up a personal computer system.

Source by Andi Abdullah

Creative Marketing Ideas For Hardware Stores

With large nationwide chains that dominate the market, small hardware stores sometimes have a difficult time being competitive. The key is to find a unique selling proposition for your business and to capitalize on it so customers see the value in choosing you over one of the larger stores. Here are some great ways to make your business stand out.

    1. Giveaways -When your store first opens (or even if you’re just looking for an extra push), offer small giveaways to your customers with their purchase. These will be tools or products they can use that are branded with your store’s information-hammers, tape measures, levels, etc. When a customer is using this product and runs out of something or determinates the need to visit a hardware store, they’ll see your information and immediately head your way!

 

    1. In-Store Classes -Hardware stores often form a bit of a culture and social atmosphere, so find ways to play this up. One great choice is to sponsor training classes and educational seminars in your store. Work with your vendors to provide information that your customers will find valuable. Even your employees can instruct these classes-anything from minor home renovation products to full-scale remodeling. List the classes you’re offering that month above your cash registers with a large, visible vinyl banner which clearly-informs customers of their opportunities to expand their skills.

 

    1. Charity Donations -Offer your products to charity groups and organizations in-town which build or repair homes for the less-fortunate. This is great PR for your business, it makes you look more-reliable, and in return you’re often able to advertise at the home-site using a banner or yard sign. When customers see that you’re giving back to your community, they are more-inclined to shop with you.

 

    1. Ladies Night -Most hardware stores predominately-market toward men. While the majority of your customers are probably male, do not neglect the ladies. Host a “Ladies Night” at your store that offers your educational classes and even a special discount on purchases made by women. Use removable window clings to give your store a slight feminine touch. There’s a huge potential market here that is somewhat-untapped, and with the right approach, female customers can dramatically affect your business.

 

  1. Personal Shoppers -Some customers complain that hardware or home improvement stores are overwhelming. Counter this objection by providing customers with a personal shopping service. Your employees already help customers find products daily anyway, but creating a formal program provides a revenue opportunity. Customers can have one of your employees guide them around the store and help them find exactly what they need for their project, or for even-more convenience, your employee can preselect the products they need so that when the customer arrives, all they have to Do is check out.

Source by Michael K Allen

10 Top Reasons Why I Have to Upgrade My Computer

The rate at which technology is improving is very fast and in the time you get comfortable with the computer hardware you have bought, several new and improved models appear in the market. While some people prefer to keep their computers state of the art, most of us have a ‘If it is not broken, do not fix it’ attitude when it comes to upgrading or replacing our computers.

This is a strategy that could prove expensive in the long run. It is always better to upgrade your computer on a regular basis, especially if you have had it for over 2-3 years. Even if your computer has had a large trouble-free existence, you really need to consider periodic upgrades and here are the reasons why you must dos so:

1. Increase in Processing Speed ​​- This is one place where you really get to notice an improvement in performance. If you are upgrading from a Celeron 433MHz processor to a Pentium 4 1.6GHz, you would really notice the difference in performance!

2. Faster Memory Access – Improvements in CPU speed are typically accommodated by improvements in the speed at which data transfer occurs between the CPU and RAM. This is another area that provides an improvement in performance.

3. Size and Capacity improvements – Technology drives a reduction in component size coupled with an increase in storage capacity. This means that a RAM card or hard disk of the similar size as the older ones in your computer could have double the capacity!

4. Software Compatibility – Many of the new software packages you may wish to use in order to improve your productivity or entertainment experience may not function well on you old computer. It is better to upgrade your computer to enjoy the benefits of new software fully.

5. Obsolescence of Hardware – As your hardware gets older; Getting a replacement will get more difficult once manufacturers start phasing out the production. With improvement in technology, the older hardware becomes cheaper initially and becomes expensive as supply dries up.

6. Technical Support Issues – Many manufacturers stop providing technical support for older components as they cease production. The older your computer gets, the harder it is to find help in fixing it when it malfunctions.

7. Development of New Hardware – New hardware products appear in the market frequently that revolutionize your computer experience and are based on newly developed technology. The chances of your old computer supporting new devices are very low.

8. Faster Devices – Your old computer may not be in a position to accommodate the speed at which the new devices communicate.

9. New, Fast Communication Protocols – You may not be able to implement new or faster communication protocols in your old computer because the hardware is unable to support them.

10. Operating System and File Format – Your old hardware may not be able to run newer operating systems and some of the file formats may not be supported.

Source by Pinky Maniri

History and Components of a Modern Mainframe Computer

Mainframe computers are critical for some of the largest corporations in the world. Each mainframe has more than one modern processor, RAM ranging from a few megabytes to multiple-score gigabytes, and disk space and other storage beyond anything on a microcomputer. A mainframe can control multiple tasks and serve thousands of users every second without downtime.

The chief difference between mainframes and other computing systems is the level of processing that takes place. Mainframes are also different in terms of data bandwidth, organization, reliability, and control. Big organizations-banking, healthcare, insurance, and telecom companies, etc.-use mainframes for processing critical commercial data.

In this article, we discuss the evolution of mainframe computers and their components.

History of mainframe computers

IBM developed a critical part of mainframe computing, the Automatic Sequenced Controlled Calculator (ASCC) for arithmetic operations, in 1944. From the late 1950s through the 1970s, several companies manufactured mainframes: IBM, Burroughs, RCA, NCR, General Electric, and Sperry Rand, for example. Since then, System / 390 by IBM is the only kind of mainframe in use. It evolved from IBM’s System / 360 in 1960.

An Early mainframe occupied a huge space. New technologies have drastically reduced the size and cost of the hardware. A current-generation mainframe can fit in a small closet.

Components of a modern mainframe computer

Like a PC, a mainframe has many components for processing data: operating system, motherboard or main board, processor, controllers, storage devices, and channels.

• Motherboard: The motherboard of a mainframe computer consists of a printed circuit that allows CPU, RAM, and other hardware components to function together through a concept called “Bus architecture”. The motherboard has device slots for input cards and cable interfaces for various external devices. Where PC motherboards use 32- or 64-bit buses, mainframes use 128-bit buses. General instructions regarding the internal architecture help the motherboard connect to the other devices and retrieve data using binary computation.

• Processor: A CPU acts as the central processing point in mainframe architecture and includes an Arithmetic Logic Unit (ALU) for performing arithmetic calculations. It also works as a controller for the bus architecture and handles traffic and data requests. The processing power of mainframes is much higher compared to PCs, so that they can handle huge amounts of data.

• Storage devices: Storage devices are for entering, retrieving, storing, and recording data. Many are external devices, such as hard drives, tape drives, and punch card readers, all connected to terminals of the mainframe and controlled by the CPU. Their capacity for data storage can be hundred or even thousands of times that of a PC.

• Communication controllers: Communication controllers allow remote computers to access a mainframe. With the help of networks, LAN or WAN, communication controllers establish connections with various devices, perform data transmission over communication channels, and keep track of users at terminals.

• Channels: The “channels” are the cables used to connect the CPU and the main storage to other parts of the system and make sure that data is moved in a systematic way without losing its integrity.

Modern mainframes have advanced features such as expanded service management capabilities, cross-platform integration facilities, etc. And so are suitable for critical data center operations. The cost of maintaining modern mainframes is much less compared to older models.

Source by Nate Rodnay

Wide Area Network (WAN)

Types and Characteristics of WANs

What is a WAN?

There are two prevailing definitions of a Wide Area Network (WAN). The book definition of a WAN is a network that spans large geographical locations, typically to interconnect multiple Local Area Networks (LANs). The practical definition of a WAN is a network that traverses a public network or commercial carrier, using one of several WAN technologies

What are its Main Components?

The main components for a WAN are routers, switches and modems. These components are described below in the hardware section.

CPE – Devices on the subscriber contracts are called customer premises equipment (CPE).
The subscriber owns the CPE or leases the CPE from the service provider. A copper or fiber cable connects the CPE to the service provider’s nearest exchange or central office. This cabling is often called the local loop, or “last-mile”.

DTE / DCE – Devices that put data on the local loop are called data circuit-terminating equipment, or data communications equipment (DCE). The customer devices that pass the data to the DCE are called data terminal equipment (DTE). The DCE primarily provides an interface for the DTE into the communication link on the WAN cloud.

Hardware

In a WAN you will need various types of hardware components for it to function. The typical items of hardware that you will need in a WAN are:

Router – An electronic device that connects a local area network (LAN) to a wide area network (WAN) and handles the task of routing messages between the two networks. Operates at layer 3, and makes decisions using IP addresses.

Switch – A switch is a network device that selects a path or circuit for sending a unit of data to its next destination. Operates at layer 2, and uses MAC addresses to send data to correct destination.

Modem – Short for modulator / demodulator, a modem that enables a computer to communicate with other computers over telephone lines. Operates at layer 1, where signals are converted from digital to analogue and vice versa for transmission and receiving.

Wan Standards

WANs operate within the OSI model using layer 1 and layer 2 levels. The data link layer and the physical layer. The physical layer protocols describe how to provide electrical, mechanical and functional connections to the services provided by the ISP. The data link layer defines how data is encapsulated for transmission to remote sites.

Encapsulation

Encapsulation is the wrapping of data in a particular protocol header. Remember that WANs operate at the physical layer and the data link layer of the osi model and that higher layer protocols such as IP are encapsulated when sent across the WAN link. Serial interfaces support a wide range of WAN encapsulation types, which must be manually specified. These types include SDLC, PPP, Frame delay etc. Regardless of WAN encapsulation used it must be identical on both sides of the point to point link.

Packet and Circuit Switching

Circuit switching and packet switching are both used in high-capacity networks.
The majority of switched networks today get data across the network
Through packet switching.

Circuit-switching is more reliable than packet-switching. Circuit switching is old and expensive, packet switching is more modern.

General Routing Issues

What is a Routing Protocol?

A routing protocol is a protocol that specifies how routers communicate and exchange information on a network. Each router has prior knowledge of its immediate neighbors and knows the structure of the network topology. The routers know this because the routing protocol shares this information.

Protocol

RIP (Routing Information Protocol) was one of the most commonly used protocols on internal networks. Routers use RIP to dynamically adapt changes to the network connections and communicate information about which networks routers can reach and the distance between them. RIP is sometimes said to stand for Rest in Pieces in reference to the reputation that RIP has for breaking unexpectedly and rendering a network unable to function.

Routing Algorithms

Distance Vector

This type of routing protocol requires that each router simply inform its neighbors of its routing table. The distance vector protocol is also known as the bellman-ford algorithm.

Link State

This type of routing protocol requires that each router maintain a partial map of the network. The link state algorithm is also know as Dijkstra’s algorithm.

IGRP

IGRP is a type of distance vector routing protocol invented by cisco used to exchange routing data in a autonomous system. Distance vector protocols measure distances and compare routes. Routers that use distance vector must send all or a portion of their routing table in a routing update message at regular intervals to each neighbor router.

Addressing and Routing

What does routing mean?

Routing is the process of deciding how to move packets from one network to another.
The directions also known as routes can be learned by a router using a routing protocol then the information is passed from router to router along the route of the destination.

IP Address’s

Every machine connected to the internet is assigned an IP address. An example of an IP address would be 192.168.0.1. IP addresses are displayed in decimal format to make it easier for humans to understand but computers communicate in binary form. The four numbers that separate an IP address are called Octets. Each position consists of eight bits. When added to together you get 32 ​​bit address. The purpose of each octet in an IP address is to create classes of IP addresses that can be assigned within a network. There are three main classes that we deal with Class A, B and C. The octets of an IP address are split into two parts Network and Host. In a class A address the first octet is the network portion, this determinates which network the computer belongs to, the last octets of the address are the hosts that belong to the network.

Sub netting

Sub netting allows you to create multiple networks within a class A, B or C address. The subnet address is the address used by your LAN. In a Class C network address you would have a subnet mask of 255.255.255.0. A subnet mask identifies which portion is network and which is host. For example 192.168.6.15 the first octet three octets are the Network address and the last octet being the host (Workstation). It is important to subnet a network because gateways need to forward packets to other LANS. By giving each NIC on the gateway an IP address and a Subnet mask it allows the gateways to route packets from LAN to LAN. Once the packet arrives at its destination, the gateway then uses the bits of the subnet portion of the IP address to decide which LAN to send the packets.

Circuit Switched Leased Lines

A circuit switched network is one that establishes a dedicated circuit (or channel) between nodes and terminals before the users may communicate. Here are some terminologies associated with a Circuit switched network.

Frame relay is a telecommunication service designed for cost-efficient data transmission between local area networks (LANs)

Basic rate interference is a service used by small business for internet connectivity. An ISDN BRI provides two 64 Kbps digital channels to the user.
Primary rate interface (PRI) is a telecommunications standard for carrying voice and data transmissions between two locations
All data and voice channels are ISDN and operate at 64kbit / s

Packet Switching

Http://www.raduniversity.com/networks/2004/PacketSwitching/main.htm – _Toc80455261

Packet switching refers to protocols in which messages are broken up into small packets before they are sent. Each packet is then transmitted over the Internet. At the destination the packages are reassembled into the original message. Packet switching main difference from Circuit Switching is that that the communication lines are not dedicated to passing messages from the source to the destination. In Packet Switching, different messages can use the same network resources within the same time period.

Http://en.wikipedia.org/wiki/Asynchronous_Transfer_Mode

Asynchronous Transfer Mode (ATM) is a cell relay, packet switching network and protocolwhich encodes data into small fixed-sized cells.

ISDN is used to carry voice, data, video and images across a telephone network. ISDN stands for integrated services Digital Network. Isdn also provides users with a 128kbps bandwidth. This is done through frame relay. Frame relay complements and provides a service between ISDN, which offers bandwidth at 128 Kbps and Asynchronous Transfer Mode which operates in somewhat similar fashion to frame relay but at speeds from 155.520 Mbps or 622.080 Mbps. Frame relay is based on the older X.25 packet switching technology and is used to transmit analogue signals such as telephone conversations.

PSDN stands for packet switched data network and is a data communication network. Packet switched networks do not establish a physical communication signal like the public telephone circuit (circuit switched network) Packets are sent on a fixed length basis and assigned with a source and a destination address. The packages then explicitly on the routers to read the address and route the packets through the network.

Mobile and Broadband Services

Digital Subscriber Line (DSL) is mainly used to bring high bandwidth connections to homes and small business’s over a copper wire telephone line. This is can only be achieved if you stay within the range of the telephone exchange. DSL offers download rates of up to 6mbps allowing continuous transmission of video, audio and 3D effects. DSL is set to replace ISDN and compete with the cable modem in providing multimedia to homes. DSL works by connecting your telephone line to the telephone office over copper wires that are twisted together.

Asymmetric Digital Subscribers Line is most commonly used for home users. It provides a high download speed but a lower upload speed. Using ADSL, up to 6.1 megabits per second of data can be sent downstream and up to 640 Kbps upstream.

Http://en.wikipedia.org/wiki/Symmetric_Digital_Subscriber_Line

Symmetric Digital Subscriber Line is a digital subcriber line which runs over one pair of copper wires. The main difference between ADSL and SDSL is the difference in upload and download speeds. SDSL allows the same upstream data rate and downstream data rate as ADSL upstream can be very slow.

[Http://searchnetworking.techtarget.com/sDefinition/0],,sid7_gci558545,00.html

HDSL High bit-rate Digital Subscriber Line, one of the earliest forms of DSL, is used for wideband digital transmission within a corporate site and between the telephone company and a customer. The main characteristic of HDSL is that that provides equal bandwidth in both directions.

IDSL is a system in which data is transmitted at 128 Kbps on a regular copper telephone line from a user to a destination using digital transmission.

The Local Loop enables operators to connect directly to the consumer via copper local loops and then add their own equipment to offer broadband and other services. This process involves operators accessing local exchange buildings to connect to a network of copper lines which connect them to homes and businesses. BT is an Example of a Local Exchange. The local loop connecting the telephone exchange to most subscribers is capable of carrying frequencies well beyond the 3.4 kHz upper limit.

Benefits of using DSL

DSL can provide a virtual instantaneous transmission of voice, data and video over ordinary copper phone lines. A DSL connection can eliminate delays while waiting to download information and graphics from the Internet. It provides users with a cost effective high speed Internet connection. Another benefit is that a DSL connection is always on-line (like a LAN connection) with no waiting time for dialing or connecting.

There are now more than 10 million broadband connections in the UK. By December 2005 there were 9.792 million broadband connections in the UK and the average broadband take up rate during the three months to December was more than 70,000 per week.

Source by Chris Michael Jones

Define Computer Hardware

It is quite well known that the working of the computer is dropped by hardware and software. One can define computer hardware as the electronic, magnetic, and electric devices that carry out the computing functions. Hardware is the physical components of the computer like microprocessor, hard disks, RAM, and motherboard. The peripheral devices such as monitor, mouse, keyboard, printer, and speakers can also be included in the list of hardware parts. The programs that run on the computers like Windows, C ++, and Photoshop are the software parts of the computer. A good example for an easy understanding of hardware-software definition is music CDs. The actual compact disk is the hardware, while the songs and music in the CD are the software parts.

There is another way to define computer hardware. Hardware devices are the executors of the commands provided by software applications. For example, let us see what happens when you click the print button of the web browsing software. The software application provides a command to the processor, which is the central part of all computer hardware. Processor in turn checks for an attached printer. If the printer is ready, the software will get a positive response from the processor. Then the software application provides instruction to the printer via the processor to print the web page. In that sense, hardware parts are the foot soldiers and software applications are the commanders in the digital operation that takes place within a computer.

The main player of computer hardware is unduly the microprocessor. It is the sun in the solar system of computer hardware devices. It is the central component and all other components work around it. It is an integrated chip on which a number of functions are incorporated. Two specifications determine its efficiency. One is its processing speed, which is measured in gigahertz. The other is its bit rate. Commonly available processors are 32 bit and 64 bit. The bit rate is a measure of the efficiency of a processor to carry out multiple operations at the same time.

One can not define computer hardware without mentioning the two types of memory used in computers. One is permanent memory. It refers to the magnetic storage capacity of hard disk. It is measured in gigabytes. The second is RAM or random access memory. This memory is able to store data only when the computer is switched on. The memory will lose all the data when the computer is switched off.

Another important product that one should mention when one defines computer hardware is motherboard. It is the electric and electronic circuit board on which all the other components are inserted. There are several other kinds of products such as sound card, video card, network card, and modem that complete the hardware spectrum.

Source by Candis Reade

Website Design – Hardware and Software Tools You May Need

Before you get started with your new website or editing your current site, you need to consider which hardware and software tools you may need to support your efforts.

When it comes to hardware needed this can be very simple or reasonably complex depending on your particular needs. Of course, if you plan to create a new website (or even view your new website later) you need a computer. Simple enough, right? Not necessarily. We prefer to work with Apple Macintosh (OSX Leopard on MacBook Pro) as we do a lot of intensive graphics work and have previously invested in Adobe Creative Suite software (Photoshop, InDesign, Flash, Dreamweaver, etc.). It is just as easy to create your new website using your Windows PC but we would suggest you stay away from using Windows Vista (any version) and migrate to Windows 7 or stick with Windows XP. These operating systems are just much more stable and reliable.

Another consideration for hardware should be some sort of backup hard drive or removable USB memory stick (s). It is important that you back up all of your website data to a removable drive in the event your computer crashes, is broken or is stolen. When you create website files, most of your data will be stored on the website hosting servers but, in many cases, you will have many other “builder files” that usually never make it to the hosting servers. If you lose this data you will be forced to start from scratch in many cases. Another piece of hardware that many forget about is a HD Video Camcorder. If you plan to include video on your site, you should be investing in something half decent; You can typically pick up a good video camera that also captures “still photos” for under $ 500.00.

When it comes to software needed, this can be somewhat more complicated, again depending on what your website design goals are. At the very least, you will need some sort of text editing software, FTP (file transfer software), graphics creation software and then a variety of other tools as you progress.

Here are some of the most common subjects you should consider when planning the design of your website product.

COMPUTER

Do you currently have a computer that can process large files (ie – video files) quickly and efficiently?

WEBSITE SERVER

Are you planning to host your own website portal? If so, do you know what type of hardware and server software you will need?

BACKUP HARD DRIVE or USB STICK

Do you currently have some sort of backup hard drive equipment or plan?

VIDEO CAMERA

Will you be creating custom videos for your website and, if so, do you have a HD video camera ready to go?

MOBILE WEB DEVICES

Are you planning to make your website “mobile web friendly”? If so, do you have an iPhone and an iPad? Android phone? Blackberry device? These will be needed for testing purposes!

WEBSITE CREATION SOFTWARE

Do you have any website creation software (ie Adobe Dreamweaver or Microsoft Front Page) installed, licensed and ready to use?

GRAPHICS EDITING SOFTWARE

Are you planning to create your own website graphics or edit pictures? Do you have the necessary software (ie Adobe Photoshop or Photo Studio)?

DATABASES

Are you planning on creating a database for your website and, if so, do you know which software to use for this purpose?

Source by ER Woody House

Why Computer Hardware Is Important

In this day and age, it is hard to deny the influence of technology in our lives. We live in an era where pretty much is automated and computerized. And amidst all the technological advancement that humankind has achieved, one important device has been created that will only sure to become more relevant to our lives as technology progresses, the computer. No one can deny that computers are now an essential part of our lives, the same way a cell phone and television does. It is safe to say that in this day and age, having no computer would be an inconvenience. Which is why it is important that we know the way our computer works so that we would be aware of the things that we should do in case it stops working. The hardware of the computer is considered to be the most important because without it, it will simply not work.

Simply put if you know how to handle the hardware of a computer and know each of their function for the unit, then you can easily determine what the problem is in case the unit stops functioning. In order to be familiar with basic computer troubleshooting, then you also need to be familiar with computer hardware. A good example of this is the memory of the computer (RAM). All programs and applications that are ran in a computer needs memory. Without RAM it simply will not function. Aside from that, even if you have a RAM but it does have the specifications to keep up with the programs that are being run, then the operation would have slowed down to a crawl. So when it comes to computer hardware, you have to make sure that it is not obsolete, so you need to upgrade depending on what sort of program that you are usually using.

When handling computer hardware, you have to keep in mind some safety measures so you can manipulate the unit safely. Before opening any computer cases, you have to make sure that the unit is unplugged or you might risk electrocution or shocks. While checking your hardware components, always check for damaged parts because that is most likely the one that is causing problems. When inserting components and parts, you have to remember that if it does not fit, then most likely you are inserting it on the wrong slot. If it does not fit, then do not force it or you will risk breaking the component. Before touching any parts inside the unit, make sure that you discharge yourself first by through a grounded metal object or you can use an anti-static wrist strap or mat which is sold in stores for cheap.

By knowing and analyzing every computer hardware part you will know about its importance and if it ever breaks down then you can perform the proper troubleshooting steps. Every hardware component is important for the computer’s operation. The performance of your computer largely depends on how good your hardware is, so be sure that they are always in good working condition.

Source by Wanda Walker