Development of Computers

Development of Computers The earliest known device to record computations was the abacus. It dates back to ancient times and was invented by the Chinese. Ten beads were strung onto wires attached to a frame. Addition and subtraction were read from the final positions of the beads. It was considered the first manual tool used in calculating answers to problems that provided information and in a primitive way storing the results. Abacus Mechanical Clock During the Middle Ages the first closed system in terms of calculating information was invented by use of a mechanical clock. The parts of the clock calculated the time of day. The time was displayed through the position of two hands on its face. The inventor pre-programmed the clock instructions through the manner in which the pull of the weights and the swing of the pendulum with the movement of the gears established the position of the hands on the clock face. Mathematics John Napier (Scotsman mid 1600s) discovered logarith

Introduction to Computers Quiz

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 Introduction to Computers Quiz

Exercise questions

1. What are the different parts that make up a computer?

2. CPU stands for?

3. What is a Modem? What is it used for?

4. Data that has been processed and has meaning is referred to as?

5. List three stages involved in transforming data?

6. Compare third generation and fourth generation computers.

7. Which key areas were improved from first to fourth generation computers?

8. Was Abacus a digital or an analogue computer?

9. Describe five uses of computers in our society today.

10. Describe the five generations of computers in terms of technology used and give an example of a computer developed in each generation.

11. How are computers classified? List the different types of computers and briefly explain where each type is most commonly used.

12. Briefly state the differences between desktop and laptop computers.

13. Describe hybrid and dedicated computers.

14. Compare with the aid of a diagram, the physical appearance and electronic components of a microcomputer.

15. List any four advantages of computers.

16. Briefly explain the similarities and differences between human beings and computer systems.



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