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(r) Data processing is a means of transforming .............................. into information.
Answers: (o) Language Processor (p) Application (q) Software
(r) Raw data
2. State whether the following statements are True or False.
(m) An operating system acts as an interface between the user, computer hardware and software.
(n) Registers are high-speed temporary storage areas found in the CPU.
(o) Cache memory is also known as CPU memory.
(p) The primary memory unit stores the data and instructions permanently.
Answers: (m) True (n) True (o) True (p) False
3. Multiple Choice Questions (MCQs):
(m) Which input device is used to provide audio data to a computer?
(i) Speaker (ii) Webcam (iii) Microphone (iv) All of these
(n) When power is switched OFF and data which is not saved is lost forever, such type of memory is
classified as:
(i) Volatile (ii) Non-volatile (iii) Impact (iv) Non-impact
(o) Which output device is used for producing highly accurate, very large drawings and posters?
(i) Laser Printer (ii) Dot Matrix Printer (iii) Inkjet Printer (iv) Plotter
(p) Which optical media uses blue laser technology to read and write data on the media surface?
(i) DVD (ii) CD (iii) DVD-ROM (iv) Blu-ray Disc
Answers: (m) (iii) (n) (i) (o) (iv) (p) (iv)

SOLVED QUESTIONS
22. Name the part of computer which is responsible for processing. [HOTS]
Ans. The CPU is responsible for processing.
23. Name the primary memory which is volatile.
Ans. RAM (Random Access Memory).
24. Write down the various capabilities of a computer.
Ans. The various capabilities of a computer are speed, reliability, diligence, versatility and large memory.
25. What is booting?
Ans. Booting is the process of starting your computer and loading the operating system.
26. Distinguish between Primary memory and Secondary memory.
Ans.
Primary Memory Secondary Memory
• Storage is volatile. • Storage is non-volatile.
• There is limited amount of RAM. • Secondary storage that can be accessed by the
CPU is virtually infinite.
• It takes a few seconds for the CPU to access • CPU takes little longer to access secondary
RAM. memory. Computer System (Additions)
• RAM is costlier than secondary storage. • It is cheaper.
27. Expand the following:
(i) ALU (ii) RAM
(iii) GUI (iv) CD-ROM
Ans. (i) ALU: Arithmetic and Logic Unit (ii) RAM: Random Access Memory
(iii) GUI: Graphical User Interface (iv) CD-ROM: Compact Disk Read-only Memory
28. What are the basic components of a computer system?
Ans. The basic components are: ALU, Control Unit, Memory, Input Unit and Output Unit.

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