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SECTION B (Subjective Type Questions)
A. Short answer type questions.
1. Define the term ICT.
Ans. ICT stands for Information and Communication Technology. It is a set of digital technology including computers hardware,
software and networking for storing, managing and communicating the information.
2. How do you copy a file or folder using drag and drop method?
Ans. Follow the steps to copy a file or folder using drag and drop method:
● Select a file or a folder you wish to copy.
● Hold down the Ctrl key while dragging it to the new location. A Copy of the file is automatically created.
3. What do you mean by an operating system? Name a few.
Ans. An operating system is a system software which is compulsory for the computer. Without an operating system, a computer
is just a machine with no usage. It works as a manager of the computer and helps you to utilize computer hardware in an
efficient manner. Windows 11, iOS, Linux, and Unix are some popularly used operating systems.
4. List any three signs that indicate that the computer is infected with a virus.
Ans. Following are the three signs that indicate that a computer is infected with a virus:
● Computer runs very slow as it loses its processing speed.
● There will be a change in the system file size.
● An unusual increase in number of files.
5. Can computer viruses infect hardware? [CBSE Handbook]
Ans. Computer virus is a malicious code that cannot damage the physical components of the computer directly.
6. What is the use of antivirus software? Name any two commonly used anti-virus software. [CBSE Handbook]
Ans. Antivirus software is a program designed to prevent, detect and remove malicious programs from the computer. After you
install the antivirus software runs automatically in the background to provide real-time protection against virus attacks.
Some examples of anti-virus software are McAfee Virus Scan, Norton Anti-Virus, Microsoft Security essentials, Quick Heal,
etc.
7. How are temporary files created on the computer?
Ans. Temporary files are created temporarily by programs that store information related to the file you are working on in your
computer. It increases the efficiency of the software and also helps in recovering the data at the time of unexpected
closing of the file due to power failure or system shut down.
B. Long answer type questions.
1. List a few important functions performed by an operating system.
Ans. Following are some important functions performed by an operating system:
● It works as an interface between the user and the machine.
● It works as a device manager. It keeps a track that all the devices are functioning properly and are available to the user
whenever needed.
● It manages the software of the computer.
● It manages the computer memory and keeps track of the memory in use and free so that it is available to the user
whenever needed.
2. What are navigation keys?
Ans. These keys allow you to move the cursor or navigate through text and documents. They are essential for editing, selecting,
and moving within different software applications. Arrow Keys (Up, Down, Left, Right) allow you to move the cursor or
highlight text in the corresponding direction. The Home key moves the cursor to the beginning of a line of text or to the
start of a document. The End key moves the cursor to the end of a line of text or to the end of a document. The Page Up
key scrolls up one page at a time in a document or on a web page. The Page Down key scrolls down one page at a time in
a document or on a web page.
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