Put a tick (√) on the correct option.

1. The primary memory of a computer is present inside the ____________________.
   1. keyboard
   2. mouse
   3. CPU
   4. floppy disk
2. The memory present outside the CPU is called ___________________ memory.
   1. primary
   2. secondary
   3. main
   4. internal
3. The optical disk is an example of _______________________.
   1. secondary storage device
   2. disk drive
   3. control unit
   4. secondary storage media
4. ROM stands for ______________________.
   1. Read-Only Memory
   2. Right-Only Memory
   3. Random Access Memory
   4. Read/Write Memory
5. RAM is also known as _______________________.
   1. Read/Learn memory
   2. Read/Write memory
   3. Random Access Memory
   4. Run-away memory
6. Which of the following is not a secondary storage media?
   1. Pen drive
   2. Internal hard disk
   3. Floppy disk
   4. Random Access Memory (RAM)
7. Which one of the following lists the components in increasing storage capacity?
   1. Floppy, CD-ROM, Hard disk
   2. Floppy, Hard disk, CD-R
   3. Hard disk, floppy, CD-R
   4. Hard disk, floppy, DVD
8. The unit that is used to specify hard disk capacity is _____________________.
   1. Bite
   2. 1.44MB
   3. 42X
   4. GB
9. Secondary storage devices store data ______________________.
   1. temporarily when power is not available
   2. permanently as long as power is available
   3. permanently even it power is not available
   4. temporarily as long as power is available
10. Which of the following is used by an optical disk to read and write data?
    1. Magnetic read/write head
    2. Laser beam
    3. Magnetic spots
    4. Sectors

Write full forms of the following:

1. MB
2. GB
3. TB
4. KB

Fill in the blanks.

1. _______________ controls the processing of data inside the processor.
2. Internal storage is also called ________________.
3. Optical disk is an example of ________________.
4. The main memory of the computer consists of ________________ and _________________.
5. Memory whose contents can be changed is called ________________.

Why do we need secondary memory?

List and describe the most commonly used secondary storage media.