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Newbie Guides New To PC's User Guide The Hardware

At the bottom of each page is an arrow, linking to the next chapter, if you prefer to step through the guide.

The Hardware

Computer hardware is the external "machinery" of the computer! In a Personal Computer (PC) there is usually 5 different parts or components that make up the whole: or the SYSTEM. The MONITOR, the KEYBOARD, the COMPUTER UNIT, the PRINTER, the MOUSE. These are the basics. Let's look at each one for a brief moment:

1 - The MONITOR is the TV Screen which doesn't get any stations: but what it will get gives you graphics or computer images both of text and pictures or images of various kinds. Depending on the type of video instructions available in your computer you can get images that look like cartoons (CGA) to images that look like photographs (SVGA) This is connected to the Main Computer Unit by means of a cable (bundle of wires), and another cable (cord) is plugged into a wall socket.

2 - The KEYBOARD is the combination typewriter keyboard and mathematical calculator along with a few other "function" keys which are used in various programs to accomplish certain tasks quickly and easily. It is connected only to the Main Computer Unit, by means of a cable.

3 - The Main COMPUTER UNIT. This is the heavy, rectangular piece of equipment the dealer told you to be VERY careful moving around! What he told you is true, but you don't have to be paranoid about it and tiptoe around the console! It is built to withstand an ordinary amount of shocks and jolts! Inside of this cabinet is the "guts" and "brains" of the computer system. It contains the "motherboard" or main electronic circuit board with all kinds of components either plugged in or soldered into place. The "brains" of the unit : the CPU or Central Processor Unit is where all of the major activity in the operation of the computer is processed. It generally looks like a 5 cm square component piece that is plugged into the mainboard. It used to take 3 or 4 huge rooms full of computer equipment to accomplish what this little piece of plastic, silicon and wire do now! Amazing! The CPU in a "286" model can process two bytes of information at a time (called 16-bit) , making it speedier than the "88" predecessor which only could handle one byte at a time. A "386" can process 4 bytes of information at a time (32-bit). A "486" has the same 32-bit but can also do elaborate mathematical procedures very rapidly by using the math coprocessor chip that comes with it! You can add on a math coprocessor to the 286 and 386 by adding a chip called a 287 and a 387. The Pentium family of processors will just blow you away.

4 - The PRINTER, is a printer! That was easy! Once data (information) has been prepared, it can be printed out on paper with the help of a printer that has an "interface" or electronic plug in which it talks to the CPU and gets the information it needs to print out on paper! There are a variety of printer types depending on the quality of copy that you want to make. The most letter perfect and professional looking copies probably come from laser-jet printers. The spacing between lines in a character for example are so close that it looks solid. Whereas in dot-matrix printers, a bunch of dots are sprayed to make a character. Dots are round and can therefore not give as good and crisp a quality per character as can laser printing. That just makes sense! Laser printers are also quite expensive - you have to always pay for the best in anything! Most people with home computers have DOT-MATRIX printers. Printers can also print in colour, not a whole rainbow, but at least 4, which makes for more attractive presentations. Colour printers, you guessed it, costs more than a regular black and white. Most people have the good 'old black and white!

5 - The MOUSE, is a mousy looking object! which is a device that helps make running programs much easier and faster by moving the "cursor" or point of operation around instantly anywhere on the screen! There are usually two buttons at the top of the unit which when hit either one or the other will cause various things to happen on the screen. "Clicking" the buttons on the mouse (striking them two times in succession very rapidly) can even activate parts of the program rather than typing in commands. Objects on the screen can sometimes be "dragged" or moved around using the mouse! Each program which uses a mouse, or "supports" a mouse has it own directions on what the pressing the buttons on the mouse will do.

There are many varieties of each of these components, but for the most part each resembles its own kind. A monitor is a monitor, a keyboard is a keyboard etc. The only radical difference would be a "tower" case in place of a desktop unit. The "guts" of the desktop unit can be transferred to a tall rectangular "tower" which can be placed on the floor (or a smaller version that can also be placed on a desktop, but usually off to the side someplace. The advantages of having a tower are many, some of which are: more desktop space, and a lot more room to add on component parts to the system, like CD-ROM and tape drives and additional floppy drives etc. Towers are relatively inexpensive but be very careful when making the switch that all the wiring is redone correctly! Irrepairable damage can be done if it is not done correctly! (no, I am not speaking from experience on that one!) The monitor, the printer and the computer unit itself each must be plugged into electrical sockets. The best way to do this is to plug a 6 or 8 socket power-surge-strip into a single plug power-surge device and then plug that into the wall and then plug each component into the strip. This gives double protection in case of a power surge coming in from the outside, say during a thunderstorm or even the ordinary amounts of surge that happen during a normal day in any household. Sudden increased voltage could destroy the computer components and all the data in it! Something to be avoided at all costs. So double protection here is not too much. Also, each component needs to be connected to the mainboard (main computer unit). This is done using special cables that contain wiring and wiring interface devices that allow information to pass to and from each component. This initial setting up of the system can be a bit confusing to a novice, which is where Scotsmist for one comes into play. A representative from Scotsmist could come to your home and make all these connections for you as well as configure your major programs. Once everything is plugged in, then all of the proper instructions for running the programs need to be fed to the computer. This is "configuring"! and can be quite confusing for someone who has never done it before! Save yourself a lot of headache and call on someone who knows a little more than you do - Scotsmist. (Or any friend who knows what they are doing!) (Scotsmist 01355 263968)! Once it is all "set up" then it is ready for you to take over and have FUN! The first thing to know of course is how to turn the units on. Each of the units that you plugged into the power strip has an OFF/ON Power Switch. Hunt and search and find the switch on each unit. When turning on the units use the following order:

1. - Printer
2. - Monitor
3. - Computer Unit
In turning them off: use the reverse order!
1. - Computer Unit
2. - Monitor
3. - Printer

Computers are built to remain on ALL OF THE TIME. But if your personal usage is not such that it is used all the time then leave it on all evening long, if you work during the day, or all day long if you work at home. DON'T turn it off and on constantly, it is bad for the machinery and the data. Turn it off at night. The bottom line is keep it running daily for a while even if you don't use it at all. It needs the exercise. One last thing to say here is that knowing how to type greatly increases the fun-ratio of this whole proposition. There are many typing tutor programs that are available to teach you step by step. Try searching the Internet for freebies.

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