DATA PROCESSING SSS1 FIRST TERM

WEEK 3

GENERATIONS OF COMPUTERS

Contents

FIRST GENERATION

An electronic machine which was distinct from mechanical computers evolved about 1945. UNIVAC is a good example of this generation of computers.

Computers of this generation were characterized by:

1. They used Vacuum tubes.
2. They were very large and expensive.
3. They were very bulky.
4. They had a low retentive memory.
5. They generated a lot of heat.

SECOND GENERATION

Second-generation computers were the replacement for vacuum tubes. Second-generation computers utilized primary discrete TRANSISTORS. They had limited capability but were more advanced than first-generation computers.

FEATURES

1. They were more reliable than the first generation.
2. They could.... View More