WEEK 2

Topic: History of Computer

Objective: At the end of the lesson, pupils should be able to:

1. Describe how the Computer came into existence.

2. Mention the things that were formally used for counting before came into existence.

Content:

Before the existence of computers, people cut sticks into smaller parts for counting.

People also used stones for counting.

First generation: 1937 – 1946 - In 1937 the first electronic digital computer was built by Dr. John V. Atanasoff and Clifford Berry. It was called the Atanasoff-Berry Computer (ABC). In 1943 an electronic computer name the Colossus was built for the military. Other developments continued until in 1946 the first general–purpose digital computer, the Electronic Numerical Integrator and Computer (ENIAC) was built. It is said that this computer weighed 30 tons, and had 18,000 vacuum tubes which were used for processing. When this computer was turned on for the first time lights dimmed.... View More