A computer is a digital electronic machine that can be programmed to carry out sequences of arithmetic or logical operations automatically. Modern computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks.

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0. What is a Computer?

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Why Computers?

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In the Beginning

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Most people’s computer...

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CRT Display
Keyboard
Mouse
“The Box”
CD-ROM Drive
Floppy
Disk
Drive

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Inside “The Box”

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Motherboard

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CPU
(Central Processing Unit)

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SIMM
(Single Inline Memory Module)

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HDD
(Hard Disk Drive)

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Power Supply

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Schematic Diagram of a Personal
Computer...

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Ports
CPU
RAM
Disk
controller
Graphics
card
Sound
card
Network
card
Printer
Mouse
Keyboard
Modem
Monitor
Speakers
bus
Computer

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Other Examples

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Computing is Much, Much More...

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Mobile Computing

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Output Devices

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Input Devices

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“Other” Computing

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