By Michael Walker
Copyright: “This power point contains images copyrighted material, and is used under fair use guidelines. Further duplication or distribution is prohibited.”

•Monitor
•CPU
•Keyboard
•Mouse
Credit to: CompUSA

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Desktop:
Known as the “regular computer”. This computer is made to set on desks or tables (Norton, 5) (note:
Much like the ones in the classroom)
Notebook:
Also known as lab top computers, these computers are much smaller than desktops, and can be carried around most anywhere (Norton,
6.)
WorkStation:
A computer that has more power, and features than a regular desk top computer. These computers are normally used for people work in a setting that reguire more powerful computers (Norton, 6.)
Credit to: compUSA
Credit to: best buy
Credit to: compUSA

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Computers have become a huge part of our lives. I am going to explode 4 useful parts of a computer in some detail to maybe give my audience some information that might be useful.

Exit

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“The most common output device.
Monitors are used for seeing the processed data by the CPU. Whether that might be a webpage, typed letters in a word processor, or so on.”
(Norton, 142.)

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How it works is that a e lectron gun within the monitor.
“The gun shoots the monitor shoots a beam of electrons through a magnetic coil to project the image shown on the screen. (Norton,
143.)
Now more commonly used, “these monitors provide the same viewable area as
CRT monitors, but they take up less desk space and run cooler than traditional CRT monitors.

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LCD- “creates images with a special kind of liquid crystal that is normally transparent, but becomes opaque when charged with electricity
Disadvantage
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Their image is hard to see in bright light
Types of LCD
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Passive Matrix
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Active matrix
(Norton,144-146)

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“The brain of the computer, this is the place where data is manipulated.
In large computer systems, such as a supercomputers and mainframes, processing tasks, may be handled by multiple processing chips” (Norton,
190.)

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Memory-
A place where programs, and files are stored. Some more important than others to the running and maintance of the computer itself
• Memory allows the CPU to process the information, call up information that it needs to do a tasks, and much more.
• Types of memory
• Non-Volatile Memory- These are chips that hold data when the computer is unplugged. (also known as ROM)
• Volatile memory-This is memory that will “hold programs and and data when they are in use
(Norton, 192.)
(Norton, 190-192.)

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The primary input device, used for entering numbers and letters into the computer.
• A standard computer holds about 100 keys.
(Norton,104.)

Function keys
Special purpose keys
Credit to: Pics4Learning
Numeric Keypad
Alphanumeric Keys Cursor movement keys

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When you press a key on the keyboard, it might seem almost like an automatic process. To show the speed of the computer, this is what actually happens.
“Once a key is pressed a chip known as the keyboard controller which notes that a key has been pressed. This sends a code into the memory called the keyboard buffer to indicate which key was pressed. Once it gets to the system, it determines what to do with the cod by reading the memory location in the key board buffer. Then passes that code to the CPU” (Norton, 108.)

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This is the “pointing device” of the ocmputer. The mouse allows a pointer to move around screen. This is used to “select text; access menus; and interact with programs files, data that appear on the screen”
(Norton, 108.)

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Trackballs:
Works like an upside down mouse. Inside of moving the mouse, you move the exposed ball with your fingers.
They are good when you do not have space to move a regular mouse (Norton, 112.)
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Track pads (touch pads):
This is a small area that you can touch to move a mouse across the screen. They are usually very small, and used for lab top computers (Norton, 113.)

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Norton, Petter. (2006) Introduction to computers. New York: McGraw Hill
Companies http://pics.tech4learning.com/ http://www.bestbuy.com/
 http://www.compUSA.com