Done by Jash

ALL ABOUT A COMPUTER

WHAT ARE YOU GOING TO LEARN?• You are going to learn about a computer.

• By the end of this slide show you will know basic things about computers.

• All you will need is a computer and a brain.

SO LETS START WITH SOMETHING BASIC• All computer have something's in common.

• They all have a Monitor, Keyboard, C.P.U and Mouse.

• Without the C.P.U your computer wont work. The C.P.U is like the brain of the system.

• Monitor shows you what you are doing.

• You use a keyboard to type and you use your mouse for direction.

A CLIP TO SHOW PHYSICALLY WHAT IS A COMPUTER.

PARTS OF A COMPUTER

Monitor

Keyboard

PARTS OF A COMPUTER

Mouse

C.P.U

PARTS OF A COMPUTER

A printer

A scanner

MONITOR A monitor or a display is an electronic visual display for

computers.

Monitor will help you see what you are doing. It shows what you are doing.

Computer monitors are available using a number of different types of technology. Liquid crystal display (LCD) monitors are the most popular model currently in use in the United States, at least on new machines. These monitors are typically thin and light. The cathode ray tube (CRT) is the second most popular version. CRT monitors are bulky and heavy, almost like an older television (albeit a small one). Some of the less common technologies used are plasma monitors, surface conduction electron admitter monitors, organic light emitting diodes, and video projector displays.

KEYBOARD We use keyboard for typing. When we have typed will

show up on the monitor.

The arrangement of characters on a QWERTY keyboard was designed in 1868 by Christopher Sholes, the inventor of the typewriter. According to popular myth, Sholes arranged the keys in their odd fashion to prevent jamming on mechanical typewriters by separating commonly used letter combinations. However, there is no evidence to support this assertion, except that the arrangement does, in fact, inhibit fast typing.

MOUSE In computing, a mouse is a pointing device that functions by detecting two-dimensional

motion relative to its supporting surface. Physically, a mouse consists of an object held under one of the user's hands, with one or more buttons.

The mouse sometimes features other elements, such as "wheels", which allow the user to perform various system-dependent operations, or extra buttons or features that can add more control or dimensional input. The mouse's motion typically translates into the motion of a pointer on a display, which allows for fine control of a graphical user interface.

CPU The CPU (central processing unit) is the main thing in your

system. A CPU is like the boos and like the brain in your body. All external system are connecter to the CPU and the CPU is the system that process the whole PC. Without the CPU your computer is nothing, your computer won’t work without the CPU.

NOW I WILL TEACH YOU HOW TO USE A COMPUTER• The first basic thing you need to know is HOW TO SWITCH ON THE THING?

Simple you just look for the CPU and look for a switch that looks like It doesn’t

need to have the same color but it does need to have the same shape. So when you

press that button. All of a sudden your monitor will start flicking and the monitor will switch

on.

FOLLOW THESE STEP INSTRUCTIONS TO HELP YOU UNDERSTAND YOUR KEYBOARD

• Step 1: Have a good look at your keyboard. The most important keys are labeled on the diagram below:

STEP 2• Step 2: The main keys are the letter keys. When you type just using these, you get lower-

case print. However, if you hold down a ‘shift key’ (there are two to choose from) at the same time as you type, you’ll get UPPER-CASE letters.

• Try typing your name, including capitals (UPPER-CASE) and spaces. The ‘space bar’ (which you press briefly to make a space) is the wide key at the bottom of the keyboard.

STEP 3• If you make a mistake in your typing, there’s always a remedy.

• To delete a letter, place your cursor (mouse pointer) just after the letter and click. Then press Backspace briefly. (Always press briefly – otherwise, you’ll get repeated deletions, spaces, letters or whatever.) Or place your cursor just before the letter, click and press Delete.

STEP 4• Now try typing a sentence:

• This is a good sentence to practice because it contains most of the letters of the alphabet.

STEP 5• You can move the cursor along this sentence without deleting anything by using the arrow

keys:

Try moving the cursor backwards and forwards through your sentence.

STEP 6• Now try using the number pad, if you have one.

• To use this to type numbers, you have to press the Num Lock key. There may be an indicator light at the top of the keyboard or on the ‘Num Lock’ key itself to show that it’s on.

STEP 7• You can also type using the numbers on the main keyboard. You’ll find them on the row of

keys above the top line of letters.

• Above these numbers are various symbols, which include ‘£’, ‘&’, ‘!’. To use these, hold down the Shift key while you type. So if you press ’7′ on its own, you get ’7′, but if you press ’7′ while you hold down the ‘Shift’ key, you get ‘&’.

• Try typing:

STEP 8• If you want everything to appear in upper case, press the Caps Lock key and then type:

• Again, an indicator light may come on to show that your capitals are ‘locked’. Don’t forget to press this key again when you’re finished to turn ‘Caps Lock’ off.

DONE• If you managed to get through those steps, you have literally learned about a keyboard.

• Now time to learn about a mouse.

STEP 1 MOUSE• Pick up your mouse and have a look at it.

• At the front (which points away from you), there are two buttons – left and right. You press or, more correctly, ‘click’ these to make things happen.

• Most mice also have a wheel in between the buttons that you roll to move up and down the screen – technically called ‘scrolling’.

STEP 2• Learn to hold your mouse comfortably. It’s normally held between your thumb and little

finger like this:

STEP 4• Have a click. Use your index finger to click the left button and your middle finger to click

the right button:

• f you’re left-handed, you can use the opposite fingers. However, you can also usually change the preferences on your computer to swap which buttons do what.

STEP 5• Try a double-click. This is done quite often on the left button. You have to click twice, as

quickly as possible. The first click tells the computer that you are in a particular ‘window’, and the second click tells it that you’re selecting a button or link or whatever to do something in that window. If you click too slowly, the computer just thinks you’re telling it where you are again and again, so do click quickly.

STEP 6• t’s time to practice. You’ll find some simple mouse exercises on the SeniorNet.org website

. To reach them from here, place the cursor over the highlighted ‘simple mouse exercises’ above – this is known as a ‘link’ – and click the left button. Did you notice how the cursor turned into a little hand when it was over the link? That tells you that you can click on that word or phrase to go somewhere else on that website or on the internet as a whole.

STEP 7• Now try a right-click. Just click the right button, paying no attention where the cursor is on

the screen. A menu will appear, giving you options. Whenever you right-click, it opens a menu. If you move your cursor off the menu and left-click, the menu will close.

• In other articles in the Learning Zone, you’ll often be told to ‘click’ and sometimes to ‘double-click’ or even ‘triple-click’. When it says this, it always means that you should use the left button. If you need to ‘right-click’, you’ll always be told to ‘right-click’!

BIBLIOGRAPHY• http://digitalunite.com/guides/computer-basics/how-use-mouse

THANKS• Learning computer part 1 comes to an end.

• Thanks and hopefully this helped you.