hardware and software

Essay by hmsaya November 2014

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� AUTHOR �Learning and Teaching Scotland�, � DATE �11/5/14� � FILENAME �THEORY QUESTION-HARDWARE-SOFTWARE� Software Exercises Software Exercises

�

Computer Systems

1 (a) What is a computer?

Computer is composed by two main components Hardware and software. Hardware is something which is physical seen and can be touch

2 (a) What does CPU stand for? Central processing unit .

What is the purpose of backing storage on a computer?

In case of computer got corrupt due to virus you can get your data back from backing storage.

EXERCISE 1

Components of a Computer

1 Label the diagram to show the main parts of a typical computer system. Choose from the list below.

Monitor Keyboard System Unit

Mouse Floppy Drive CD Drive

2 More Laptop and notebook computers are sold each year than desktop computers.

Can you suggest 3 reasons why?

1 they are portable to use.

2 they have more storage capacity compare to desktop

they are much faster.

3. What type of computer system, desktop or portable, would you recommend, and why?

Note, either answer may be correct if justified correctly.

I would suggest portable as they are easy to carry and are much faster than desktop computer.

4. Mobile computers (Laptop) have become increasingly popular. What are the advantages and disadvantages of these small computers?

Advantages are

Disadvantages are

Can you explain why there are differences in the price of each type of computer?Name 7 Factors

1.

2.

3.

4.

5.

6.

7.

The CPU and Memory

1 Put these measures of size into order, smallest ( largest?

MHZ KHZ GHZ THZ

KHz-MHz-GHz-THz

2 What measurement is normally used for the speed of the...