Computer Science
Class-VI
Chapter-1 Buying a Computer
A. Fill in the blanks:
1. ______ computer can be taken anywhere you want to.
Answer: Laptop
2. You work sitting at one place, you should buy a _____.
Answer: Desktop computer
3. More the _______ of a CD-ROM drive, smoother is the video and sound we get from it.
Answer: Speed
4. We measure the speed of a modem in ___________.
Answer: Kbps
5. The maintenance cost is the least in case of ______ printers.
Answer: dot-matrix
6. ________ is a type of memory, similar to RAM.
Answer: Cache
B. Write whether true or false:
1. The computer has become an important part of our lives.
Answer: T
2. A faster processor allows us to connect to the Internet quicker.
Answer: T
3. Intel, Cyrix and AMD are the names of companies that manufacture processors.
Answer: T
4. The keyboard can have a curved or flat face.
Answer: F
5. The running cost of a dot-matrix printer is least.
Answer: T
6. Norton is an operating system software.
Answer: F
7. A UPS protects our PC against voltage fluctuations.
Answer: T
C. Tick the correct option:
1. Sometimes, inferior quality components are used in
a. assembled computers b. branded computers
Answer: Assembled computers
2. The speed of processor is measured in
a. meter per hour b. megahertz
Answer: Megahertz
3. A CD writer is a
a. hardware device used to write information on CDs.
b. software used to write information on CDs.
Answer: Software used to write information on CDs.
4. Intel and AMD are the names of companies that manufacture
a. keyboards b. processors
Answer: Processors
5. The size of RAM is measured in
a. gigabytes b. inches
Answer: Gigabytes
D. Answer the following questions:
1. Which factors should be considered buying a computer?
Answer: Various factors about the types of computer, its hardware, peripherals and software should be considered before buying one.
2. Which type of the computer is recommended for the people who travel a lot?
Answer: Laptop computer is recommended for the people who travel a lot. Laptop computers are portable and can be taken anywhere you want to.
3. How can you differentiate between a branded and an assembled computer?
Answer: A branded computer is made by a well known manufacturer and has the manufacturer's label on it.
Assembled computers is made by someone who assembled different parts of computer.
4. Which factors should be considered while choosing the type of a processor?
Answer: Following are two things one should consider:
1. Speed of the a processor
2. Can we upgrade it later.
5. What type of the CPU, monitor and mouse are available in the market?
Answer: CPU types:
1. Tower Case
2. Desktop Case
Monitor Types:
1. LCD, 2. LED 3. CRT
Mouse Types:
1. Optical Mouse, 2. Two button mouse 3. Three button Mouse
6. Which factors should one consider while buying the computer peripherals?
Answer: We should consider branded computer peripherals.
7. Which software programs one should install in the new computer?
Answer: System software should install in the new computer.
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