1. Name : ___________________________ Class : ______________ Date: _________________________
Computer Studies YEAR 7
STORAGE DEVICES (Exercise 2)
1. All the data and instruction in the computer are measured in _________________.
2. Study the storage sizes and answer the question.
1 bit =_________________ 1 Byte = ______________
8 bit = _________________ 1000 Kilobytes (KB) = ____________
1000 bytes = __________________ 2 Gigabytes (GB) = ___________________
1 Megabytes (MB) = _________________
1000 Megabytes (MB) = __________________
3. Underline the correct answer.
i. Random Access Memory (RAM) is also called (Volatile memory / Non-volatile memory).
ii. Read Only Memory (ROM) is also called (Volatile memory / Non-volatile memory).
4.
i. Hard disk are measured in ________________
ii. Give TWO advantages and disadvantages of using a hard disk.
1. __________________________________________________________
2. __________________________________________________________
1. __________________________________________________________
2. __________________________________________________________

2. 5.
i. Floppy disks can hold data up to ________________
ii. Give TWO advantages and disadvantages of using a Floppy Disk / Diskette.
1. __________________________________________________________
2. __________________________________________________________
1. __________________________________________________________
2. __________________________________________________________

3. 6.
7.
i. Zip Drive can holds data up to ________________
ii. Give ONE advantage and disadvantage of using a Zip drive.
Advantage - __________________________________________________
Disadvantage - _______________________________________________
i. CD-ROM can holds data up to ________________
ii. What are the differences between CD-ROM and CD-RW.
____________________________________________________________
____________________________________________________________
____________________________________________________________
iii. Give TWO advantages and disadvantages of using a CD-ROM.
1. __________________________________________________________
2. __________________________________________________________
1. __________________________________________________________
2. __________________________________________________________

4. 8.
9.
i. DVD can holds data up to ________________.
ii. DVD stands for ____________________________________________.
iii. Give ONE advantage and disadvantage of using a DVD.
Advantage - __________________________________________________
Disadvantage - _______________________________________________
i. State the features of a Flash disk.
______________, ______________, ______________, _____________
ii. Flash Disk nowadays can hold data up to __________________.
iii. Give ONE advantage and disadvantage of using a Flashdisk.
Advantage - __________________________________________________
Disadvantage - _______________________________________________