Computer Training - Computer Repair and Building by Michael Russell
There is no getting around that there are a lot of computers in the world. The percentage of homes alone that now have computers is staggering and with all these computers, some running literally around the clock, there had better be somebody available to repair them when they break down, and... The next thing you will learn is a general overview of the various parts of the computer such as the mother board, power supply, memory chips, hard disk drive and all the peripheral equipment such as CD ROM drives, modems, and floppy disk drives.

History of the Computer - Core Memory; Part 3 of 3 by Tony Stockill
OK, now how does it work? We have said how we can store a 1 or 0 in a core by flipping it from one state to the other. The core can be magnetised in one direction or the other, clockwise ,or counter-clockwise, 1 or 0. We start with a clear memory, all bits in all addresses set to 0. ... Core memory has one big advantage over the 'chip memory' currently in use, in that it is non-volatile. ... For this reaon, the data is written back to the location in the next memory cycle. ... NVRAM stands for Non Volatile Random Access Memory, In this case it is a bit of a cheat, as it needs a battery to...

Computer Memory - The More the Merrier by Michael Russell
Constantly I am asked by friends and family, why is my computer running so slow? They tell me that they bought a state of the art computer and when they first used it that everything was fantastic. Then a couple of months later like clockwork, they always come back and say, something is wrong... If you have multiple programs running in your computer at the same time, then it will begin to devour your memory and by virtue of all these separate programs needing so much memory, it will cause your entire system to bog down and literally crash.

Cache In Your Chips And Get A Bus! by Seamus Dolly
Computer related terminology could sometimes be daunting to newcomers. These are relatively new words or hybrids of words, already in existence. Someone with a degree in English, for example, could not necessarily guess, the function of a particular devise, by its name. ... CACHE is not legal tender in most countries, but a type of memory that your CPU (central processing unit ) first looks for. ... Heat generation is minimal and electrical resistance is redundant. ... It is heat generation and resistance that brings your “fan” into play, keeping everything cool, and electron transfer at a...

Solid State Hard Drives - They Will Replace our Existing Hard Drives - When? by Charles West
Finally - and yes possibly because of mp3 players and the continuing development of such - the cost of Solid State computer memory is dropping. Camera memory cards or sticks as some people call them are very well priced and readily available, you can now get up to 2gb, and in some cases 4gb... This NAND flash memory is available in units that fit directly into your computers standard IDE ATA interface socket, saving you space with no cables to get in the way and other designs will slot along side or below your existing hard drives and wire into your IDE ATA slots with your...

Small Wonders: Single Board Computers by Paolo Basauri
What are Single Board Computers When most people think of computers, the image of a PC or laptop comes to mind. Some may even recall the football field size computers of the 1960's and 70's before the emergence of the PC. Very few people would picture single board computers , even if there was... Video capability, Ethernet access functionality and digital computer technologies are just some of the features that can be incorporated into a single board computer. ... A single board computer is the terminology used for a printed circuit board that contains a processor, memory, I/O...

The Magic Behind Digital Camera by Harry Rockwell
A digital camera, as opposed to a film or videotape camera, uses an electronic sensor to transform images (or video) into electronic data. Modern digital cameras are typically multifunctional and the same device can take photographs, video, and/or sound. ... Cameras use a removable memory card to store data, but the cheapest and smallest cameras may simply use fixed internal memory instead. ... These CCDs are usually referred to as "sticks" rather than "chips" because they utilize only a single row of pixels (more properly "photosites") which are again "stamped" with the Bayer filter.

Build Your Own Computer or Buy? by Ron King
Just look inside a computer case. At first glance, all those wires and components can look terrifyingly complex. And thinking about putting them all together by yourself may seem impossible. Not to worry! Even though they are the products of advanced technology, the various pieces of a personal... For example, if a malfunctioning motherboard fries your memory chips, you may not be able to get compensation for the damaged memory. ... You are virtually guaranteed to get the best computer when you build your own system.

Will Your Computer Be Windows Vista Capable? by J Fox
Microsoft's new operating system, Vista, which is due to go on widespread release in early 2007 will make huge demands of your computer's graphics capabilities. The term 'Aero Glass' may not mean much to a lot of you at the moment but it is the name that defines the new (less violent) world of... A Windows Vista Capable PC to run only the basic version of Vista must include at least: A modern processor (at least 800MHz) 512 MB of system memory A graphics processor that is DirectX 9 capable To be able to run Windows Vista Premium, your computer will need at least: 1 GHz...

Discount Computer Accessories by Josh Riverside
An accessory is an additional item for a product that helps in contributing to its utility. There are many accessories available today that add useful functionalities to a computer. In a market cluttered with many different products, brands and types of accessories, a buyer has a tough time in... Discounts on accessories such as keyboards, camera batteries, desktops, digital cameras, floppy drives, hard drives, input devices and memory chips are provided when a bulk purchase is made. ... Large organizations and educational establishments such as colleges and schools purchase large...