Computer Studies - Junior Secondary 1 - Generations of computer

Generations of computer

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Term: 1st Term

Week: 5

Class: Junior Secondary School 1

Age: 12 years

Duration: 40 minutes of 2 periods each

Date:

Subject:      Computer studies

Topic:-       Generations of computer

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

  1. Discuss the first generation of computers
  2. Mention examples of first generation of computers
  3. State the features of first generation of computers

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher revises the previous lesson on basic computer operations and concepts

Students pay attention

STEP 2

EXPLANATION

She discusses the first generation of computers and lists examples

Students pay attention and participates

STEP 3

DEMONSTRATION

She states and explains the features of the first generation of computers

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

GENERATION OF COMPUTERS

First (1st) Generation Computers 1940-1956

These are computers produced between the 1940 and 1956. It used vacuum tubes.

Examples are:

  1. ENIAC- Electronic numerical Integrator and Computer
  2. EDVAC- Electronic Discrete Variable Automatic Computer
  3. UNIVAC-Universal Automatic Computer
  4. IBM-701- International Business Machine
  5. IBM-750- International Business Machine
  6. UNIVAC-1 (Universal Automatic Computer 1)

 

FEATURES OR CHARACTERISTICS

  1. It is based on the Vacuum tube technology
  2. It used machine language only 0 and 1
  3. iii. It was very costly
  4. It produced a lot of heat
  5. It required large space
  6. It needed AC for cooling
  7. It consumed a lot of electricity
  8. It was very unreliable
  9. It had Slow Input / Output process

EVALUATION:    1. Discuss briefly the first generation of computers

  1. List two examples of the first generation computers
  2. State four features of the first generation of computers

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively