Chapter 6
Computer Memory
E. Answer these questions.
Que 1. Name the two types of computer memory.
Ans - There are two types of memory devices:
- Primary memory devices
- Secondary memory devices.
Que 2. What is the use of secondary memory? Give any two examples.
Ans - Secondary memory is needed in the computer to store data or information for a long period of time. Examples are CD, DVD, Blu-ray, pen drive, memory card, hard disk, etc.
Que 3. Write any one difference between RAM and ROM.
Ans - The difference between RAM and ROM are
|
|
RAM |
ROM |
|
1 |
RAM Stands for Random Access Memory. |
ROM Stands for Read Only Memory. |
|
2 |
RAM store data or information temporary. |
ROM store data or information permanently. |
|
3 |
It is Volatile memory. |
It is Non-volatile memory. |
Que 4. Why are pen drives more popular than CDs/DVDs?
Ans - Pen drives are more popular than CD/DVDs because it is a portable storage device that can carried in a pocket and storage capacity of pen drive is much higher than CD/DVD.
Que 5. What is a byte?
Ans - A byte of memory is used to store a single character (a letter or a number). 1 byte is equal to 8 bits.
Que 6. What is a hard disk? What is its maximums storage capacity?
Ans - Hard disk is the main secondary storage device that stores large amount of data permanently. Its maximums storage capacity is 5 TB.
Que 7. What is the use of SSD?
Ans - SSD (Solid State Drive) is a latest technology use to stores data permanently which has begun to replace the hard disk. It is 3 times faster than the hard disk but, it is little expensive than a hard disk.
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