Page 12 - Modular_v4.0
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Chapter Profile
Operating system is an example of system software. Microsoft
Windows is the most popular operating system available today. It
has different versions like Windows XP, Windows Vista, Windows 7,
Windows 8, Windows 10 and Windows 11.
Application Software
Application software is used to perform a specific task. Some examples of application
software are Paint, Windows Media Player and Word 2019.
Paint is used to draw and colour pictures.
Exercise
Windows Media Player is used to play movies and songs.
A. Tick ( ) the correct option.
1. Which of these is NOT an input device?
MS Word is used to type letters, applications, articles and essays. a. Keyboard b. Mouse
c. Printer d. Scanner
2. Which of the following devices is used to store data permanently?
HOW DOES A COMPUTER WORK? a. Microphone b. CPU
A computer works on the IPO cycle (Input-Process-Output). c. Hard disk d. Mouse
3. Identify the device that converts printed pictures into digital form.
INPUT PROCESS OUTPUT
a. Scanner b. Mouse
3, 6, + 3 + 6 9
c. Keyboard d. Microphone
Data Information
4. The full form of CPU is .
a. Central Processing Unit b. Central Programming Unit
c. Computer Processing Unit d. Central Printing Unit
B. Fill in the blanks using the words given below:
Keyboard CPU Monitor
Webcam, CPU, IPO, Microphone
Input: The data and instructions we give to a computer are called Input.
Process: A computer takes action on the data entered by the user. It converts the data 1. A computer works on the cycle.
into meaningful information with the help of the processor which is the CPU. This 2. The device used to record sound into a computer is .
conversion of data into information is called processing. 3. The CPU is placed inside the box/cabinet.
Output: The result which we get after processing the data and instructions is called 4. A is a digital camera used to input video into a computer.
output.
10 Modular (Ver. 4.0)-III

