Note: Take a single 40 pages Single line Notebook for doing the

Holiday Homework for all the subjects.

MPVM : Ganga Gurukulam

Holiday Homework Sub :- Computer

Class 4

1. The main part of our computer is System unit. Without system unit a

computer is nothing. Draw and explain the diagram of system unit that

displays all its three parts.

2. Draw and write at least 2 points about the devices invented by

(i) Sir Christopher Latham Sholes (ii) Dr. Engelbart

3. Draw a diagram of working cycle of a computer that is the IPO cycle.

4. Fill in the blanks:-

1. The ________________ manages all the operations of a Computer.

2. Monitor is also known as_________________.

3. ______________ performs all arithmetic calculations and logical

operations.

4. ______________ is a set of instructions that enables the hardware

to work in a desired manner.

5. The devices through which we enter data and instructions are

called_____________.

5. Name the devices:-

1. A device used to record our voice and other sounds in a computer.

2. It is a device connected to the computer for capturing still images

and live videos.

3. It is a device that reads the text or pictures printed on a paper and

translates the information into a form that a computer understands.

4. A device commonly seen in video parlours for playing games.