DATA PROCESSING SSS2 FIRST TERM

WEEK 1

REVISION

Contents

History of computing

Abacus – Napier’s Bones – Slide Rule – Schickard’s Calculating Clock – Pascal’s calculator – Leibnitz Multiplier – Analytical Engine – Herman Hollerith Punch Card – John Von Neumann Machine

Concepts of Number System: Binary (or Base 2) – Octal (or Base 8) – Decimal (or base 10) – Hexadecimal (or base 16)

History of Computer

First Generation – Vacuum Tube

Second Generation – Transistors

Third Generation – Integrated Circuits

Fourth

Generation – Microprocessor

Fifth Generation (Artificial intelligence)

Classification of Computer

Classification Based on Type (Analogue, Digital and Hybrid)

Classification Based on Size (Micro, Mini, Mainframe and Super Computers)

Classification Based on Purpose (General and.... View More