1.1 Basics components of a computer
- Central Processing Unit (CPU)
- Storage device (Main memory, hard disk, DVD writer)
- Input Device (Keyboard, Mouse, scanner, microphone, web camera)
- Output Device (monitor, printer, speaker, projector, Monitor)
5 multimedia element:
Text
Graphics
Audio
Video (By recording)
Animation (Generated by computer)
1.2 Input and Output Devices
1.2.1 Input Devices
Pointing devices
1.2.2 Output Devices
VDU and projectors
LCD monitors, CRT monitors
Printers
Laser, ink jet
dot matrix
Audio output devices
Speaker, headphone/earphone
1.3 Central Processing Unit
CPU is responsible for processing data and instructions.
Speed of CPU:
- number of core
- clock rate
- word length: Number of bits processed for a single operation.
CPU = ALU + CU
1.4 Storage Devices
Main memory (Primary Storage):
Random access memory
Read only memory
Secondary Storage
floppy disk
hard disk
Memory cards / USB Flash Drive
DVD-RW
1.5 Motherboards and Interface cards