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11th Standard English Medium Computer Applications Subject Introduction to Computers Book Back 3 Mark Questions with Solution

Published on: 11/06/2021

QB365 provides detailed and simple solution for every book back questions in class 11 Computer Applications subject.It will helps to get more idea about question pattern in every book back questions with solution.

Download Tamil Nadu 11th Standard Computer Applications question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 11th Standard - Computer Applications

chapter: - Book back Questions

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Questions:

Generic 3

5 x 3 = 15

Write the significant features of monitor.

Differentiate Optical and Laser mouse.

Name any three output devices.

What is an input device? Give two examples.

Write the applications of computer.

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Answers Key:

Generic 3

5 x 3 = 15

Monitor:
(i) Monitor is the most commonly used output device to display the information. It looks like a TV.
(ii) Pictures on a monitor are formed with picture elements called PIXELS.
(iii) Monitors may either be Monochrome which display text or images in Black and White or can be color, which display results in multiple colors.
(iv) There are many types of monitors available such as CRT (Cathode Ray Tube), LCD (Liquid Crystal Display) and LED (Light Emitting Diodes).
(v) The video graphics card helps the keyboard to communicate with the screen.
(vi) It acts as an interface between the computer and display monitor.

Optical Mouse	Laser Mouse
Measures the motion and acceleration of the pointer.	Measures the motion and acceleration of pointer.
It uses light source instead of ball to judge the motion of the pointer.	Laser Mouse uses Laser Light.
Optical mouse is less sensitive towards surface.	Laser Mouse is highly sensitive and able to work on any hard surface.

(i) Monitor
(ii) Printer
(iii) Plotter
(iv) Speaker
(v) Multimedia projectors are the output devices.

Input device is used to feed any form of data to the computer, which can be stored in the memory unit for further processing.
Example: Keyboard, mouse, Scanner, Fingerprint scanner, Track Ball, Retinal Scanner, Light pen etc.

The various applications of computers are,
(i) Business
(ii) Education
(iii) Marketing
(iv) Banking
(v) Insurance
(vi) Communication
(vii) Health care
(viii) Engineering - Robotics, Nano technology, Bio Engineering