Chapter-3 Storehouse of Computer
Solved Exercise:
1. Tick the correct option:
a. The hard disk is located inside the:
i. monitor ii. CPU iii. SMPS iv. none
Answer: CPU
b. Which of the following is not a primary memory:
i. RAM ii. ROM iii. EP-ROM iv. AP-ROM
Answer: AP-Rom
c. Which of the following is a secondary memory:
i. Hard disk ii. RAM iii. RAW memory iv. Mouse
Answer: Hard Disk
d. It comes in 3.5 inch format with the storage capacity of 1.44 mb:
i. DVD ii. CD iii. HD iv. Floppy disk
Answer: Floppy Disk
e. This memory is directly accessible to the CPU:
i. Secondary ii. Auxiliary iii. Primary iv. External
Answer: Primary
2. True or false:
1. ________ holds the data instructions etc.
Answer: Memory
2. Memory consist of large numbers of small areas called_________ location.
Answer: Storage
3. Capacity of memory is measured in terms of _________ and ______.
Answer: Bits and Bytes
4. Computer can understand only ________language.
Answer: Machine language
5. BIT stands for ______________.
Answer: Binary digit
6. _________ is a smallest unit of data in computer.
Answer: Bit
7. ________ is a smallest unit of memory.
Answer: Byte
8. Group of 8 bits is called_______.
Answer: a byte
9. __________ memory holds the data permanently.
Answer: ROM
10. _________ memory holds the data temporarily.
Answer: RAM
11. Winchester disk is also known as _____________.
Answer: Hard disk
12. CD is also called_________ disk.
Answer: Compact
5. Give the full form of the following:
a. RAM
b. ROM
c. CD-ROM
d. FDD
e. HDD
Answer:
a. Random Access Memory
b. Read Only Memory
c. Compact Disk-Read Only Memory
d. Floppy Disk Drive
e. Hard Disk Drive
6. Read carefully and write the name of the devices:
a. It is the secondary storage device fixed inside the computer.
Answer: Hard Disk
b. It is the small, flexible, removable secondary storage device.
Answer: Floppy Disk
c. It is a secondary storage device helps in accessing data in some order.
Answer: Magnetic Tape
d. It is the latest storage device.
Answer: Blue ray disc
e. It was first made by IBM located near Winchester in England.
Answer: Winchester Disk
f. It is a secondary storage device which helps you to read and write the data on it.
Answer: Blue ray disc
g. It is a permanent storage device where data remain even when power goes.
Answer: ROM
h. It is a temporarily storage memory unit where data is lost as power supply is stopped.
Answer: RAM
7. Answer the following questions.
a. What is a memory unit?
Answer: The memory consists of large number of small areas called, storage locations.
b. What are the two types of memory unit?
Answer: There are two type of memory:
1. Primary memory
2. Secondary memory
c. What is a Primary memory?
Answer: Primary memory is a small capacity memory unit of computer. It can hold the data for short period.
d. Name two types of Primary Memory.
Answer: Two types of Primary memory:
1. RAM-Random access memory
2. ROM-Read only memory
e. What is a Secondary memory unit?
Answer: Secondary memory unit is the group of storage device which can be used to store the data.
f. Name few secondary memory devices.
Answer: Secondary memory devices:
1. Hard Disk
2. Floppy Disk
3. Magnetic Tape
4. CD/DVD
g. Write short note on: i. ROM ii. RAM
Answer:
1. ROM: ROM contains of all the instructions needed by computer when it is switched on. It is an essential component of the memory unit.
2. RAM: Random access memory is temporary and is erased when the computer is switched off.
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