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j. How many MegaBytes are there in one GigaByte?

(i) 1056 (ii) 1032
(iii) 1024 (iv) 1000

k. Word processor is an example of ____________ software.

(i) System (ii) Operating

(iii) Application (iv) Customized

2. Fill in the blanks using the words given below:

Application software, Hardware, Disk defragmenter, ALU, Devices,
Optical Disc, ZettaByte, USB, Byte

a. Parts of computer that we use to work with the computer are called ____________ .

b. ____________ is a part of computer that we can touch and see.

c. ____________ is used to perform a particular task.
d. ____________ organises fragments of files into continuous blocks.

e. ____________ is used to perform arithmetic calculations.

f. External hard disks can be connected with the help of ____________ ports.

g. The basic unit of measuring the computer memory is called ____________ .

h. An ____________ is an electronic storage device that uses laser beam to read and write data.

i. One ____________ equals 1024 EB.

3. Write 'T' for true and 'F' for false.

a. CPU is made up of ALU, CU, and MU. ____________

b. Speakers are the storage device. ____________
c. Joystick is an output device. ____________

d. Virus scanner is used to scan only folders for virus. ____________

e. Data compression program is used to compress large sized file into a smaller
size file. ____________

f. DBMS is a utility software. ____________

4. Answer the following:

a. What is joystick?

Computer System Organization - Hardware, Software & Memory 53