Page 15 - TP_Pluse_V2.2_Class4
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test Your skiLLs
1. Tick ( ) the correct option.
a. Which of the following is known as the main memory of the computer?
(i) Secondary (ii) Read Only (iii) Primary
b. Which of the following is the temporary memory?
(i) RAM (ii) ROM (iii) All of these
c. Which of the following is called non-volatile memory?
(i) CPU (ii) ROM (iii) RAM
d. How many megabytes are there in one gigabyte?
(i) 1056 (ii) 1032 (iii) 1024
e. A group of ____________ is called nibble.
(i) 4 bits (ii) 8 bits (iii) 2 bits
2. Fill in the blanks using the words given below:
Optical disc, Zettabyte, USB, Byte
a. External hard disks can be connected with the help of ____________ ports.
b. The basic unit of measuring the computer memory is called ____________.
c. An __________ is an electronic storage device that uses laser beam to read and write data.
d. One ____________ equals 1024 EB.
3. Answer the following questions:
a. What is a primary memory?
___________________________________________________________________________
b. What is a byte?
___________________________________________________________________________
c. Differentiate between RAM and ROM.
___________________________________________________________________________
___________________________________________________________________________
d. What is a Blu-ray disc?
___________________________________________________________________________
___________________________________________________________________________
Data Storage and Memory 13

