Computer Science
Class-VI
Chapter-1 Computer Fundamentals
Section-1
A. Answer these questions orally:
1. What do you mean by data?
Answer: The raw information is called data.
2. What are input devices?
Answer: Devices through which data and instructions are entered into a computer are called input devices.
3. What are computer software?
Answer: Set of programs is called a software.
4. What are the different types of ROM?
Answer: Different types of ROMs:
1. PROM
2. EPROM
3. EEPROM
B. Tick the correct option:
1. Computer is a/an _______ device.
a. electric b. light c. mechanical d. electronic
Answer: Electronic
2. Joystick is a/an __________ device.
a. input b. output c. memory d. processing
Answer: Input
3. Which is not an example of optical storage device?
a. CD-R b. DVD c. Hard Disk d. CD-RW
Answer: Hard Disk
Section-2
A. Fill in the blanks:
1. The processed form of data is called__________.
Answer: Information
2. Physical parts of computer are called ______________.
Answer: Hardware
3. _____ devices are used to enter information into a computer.
Answer: Input
4. VDU stands for _____________.
Answer: Visual Display Unit
5. ________ and _________ are the two types of primary memory.
Answer: RAM and ROM
B. State true or False.
1. The output obtained on the VDU is called the soft copy.
Answer: T
2. VDU can display only text.
Answer: F
3. Software is a necessary component of computer.
Answer: T
C. Answer the following questions:
1. What are the two major components of computer? Define them.
Answer: There are two major components of computer:
1. Hardware: Physical parts of computer are called hardware.
2. Software: Set of programs is called software.
2. Explain the use of system software in the computer.
Answer: System software is a set of programs that controls the working of your computer system. It acts like an interface between the user and the computer.
3. Why are optical storage devices more in use than magnetic storage devices?
Answer: Optical storage devices more in use than magnetic storage devices because optical storage devices are less costly and easily moveable.
4. Write short notes on the following:
a. Zip disk b. CD-ROM c. Floppy disk d. Hard disk
Answer:
a. Zip disk: Zip Disk is a small disk like floppy disk used for keeping backup of important files.
b. CD-ROM: CD-ROM stands for compact disk- read only memory. CD-ROM is used to read/write CD.
c. Floppy disk: It is made up of a thin plastic material coated with an iron substance for recording the data.
d. Hard disk: A hard disk is composed of a series of flat, magnetically coated platters stacked on a spindle.
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