WEEK 2 : COMPUTER HARDWARE BASICS

COMPUTER HISTORY:

· First generation (1940-1950): Vacuum tube

· Second generation (1950-1964): Transistors

· Thirst generation (1964-1974): Integrated

· Fourth generation (1974-present): VLSI/ULSI

· Fifth generation (now and the future)

COMPUTER ACHITATURE:

· Processor: controland data path

· Memory

· Input

· Out put

COMPUTER PROCESSING POWER

· The power of the computer is important.it is determined by the speech and capacity(size) of each part of the computer.

· Speech is measure in hertz (Hz) i.e. cycles per second.

· Capacity is measured in bytes (B) where

· 1bye =8bite (binary digit) = 1 character.

MAIN MEMORY:

RAM (random access memory).

ROM (read only memory).