CLASS – IX
SUBJECT : INFORMATION TECHNOLOGY
CHAPTER – 3 (BASIC ICT SKILLS)
WORKSHEET – 3
1. Give full form of the following:
a. RAM
b. ROM
Answer: RAM (Random Access Memory)
ROM (Read Only Memory)
2. Which memory- RAM or ROM is called the volatile memory and why?
Answer: RAM is a temporary memory. When power supply is switched off, the information stored in RAM is lost, so it is also known as volatile memory.
3. Name the parts of primary memory.
Answer: RAM (Random Access Memory)
ROM (Read Only Memory)
4. What is one byte?
Answer: One byte is the minimum space required to store one character. 1 Byte = 8 bits
5. Complete the following:
a. 1 KB= ___________Bytes
b. 1 GB = _____________ bytes
Answer: a. 1 KB= __1024______Bytes
b. 1 GB = __ 1024 MB =1024 x 1024 x 1024 bytes
6. Arrange in increasing order of storage capacity. TB, MB, GB, KB, Byte.
Answer: KB, MB, GB, TB
7. Name the memory which is also known as read/write memory.
Answer: RAM is also known as read/write memory as information can be read from RAM and also written onto it. Information stored in RAM may be erased or written over
8. Name few output devices.
Answer: Monitor, Speaker, Printer.
9. Write three functions of primary memory.
Answer: Functions of primary memory are:
• Here data is fed and held until it is ready to be accessed.
• It is used to hold the data being processed and the intermediate results of processing.
• It holds the result of the processing.
10. Name the elementary unit of memory.
Answer: The elementary unit of memory is a bit. A group of 4 bits is called a nibble and a group of 8bits is called a byte..