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11th Standard English Medium Computer Science Subject Introduction to Computers Book Back 2 Mark Questions with Solution Part - I updated Book back Questions

Published on: 13/05/2022

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Std: 11th Standard - Computer Science

chapter: - Book back Questions

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Questions:

Generic 2

5 x 2 = 10

Write the functions of control unit.

What is the function of an ALU?

What are the components of a CPU?

Distinguish between data and information?

What is a computer?

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Answers Key:

Generic 2

5 x 2 = 10

The control unit controls the flow of data between the CPU, memory I/O devices. It also controls the entire operations of a computer.

The ALU is a part of CPU where various computing functions are performed on data. ALU performs arithmetic operations such as addition, subtraction, multiplication, division and logical operations.

The Components of CPU are (a) Control Unit, (b) Arithmetic and Logic Unit (ALU), (c) Memory Unit.

Data Information Data is a collection of facts from which the information may be derived. It is an unprocessed collection of facts in a manner suitable for communication, interpretation or processing. Information is a collection of facts from the conclusions can be drawn. Information is a processed facts, active, Business based and transformed from data. Eg. 134, 16, Kavitha Does not give meaning. Eg. Kavitha is 16 years old.
Conveys meaning.

Computer is an Electronic Machine, capable of performing basic operations like addition, multiplication, division etc. Computer accepts data as input, process it, produce output and stores it for future.