Unit 3: Information and Communication Technology Skills-II (Operating Systems)
Assessment TimeA. Select the correct option.
1. The main screen of Windows is called .................................... .
Answer: This operating system is graphic based and interactive in nature. In it, menus and icons are available to perform all operations, just by clicking on them. Now, a user does not need to remember the lengthy commands or their syntax as they had to do in Command-Line Interface (CLO) or Character User Interface (CUI). Some examples of GUI are:
2. What is an operating system? Give a few examples.
Answer: The first program that loads on a computer when switched on is called its operating system. It is a program that acts as an interface between the software and computer hardware. It is a specialised set of programs that manages the overall functioning of the computer and its resources. An operating system controls and monitors the execution of the other programs and applications. It performs basic tasks, such as recognising input from the keyboard, sending output to the monitor, managing files and directories on the storage devices, and controlling peripheral devices. Some common examples of operating systems are Windows, Macintosh (Mac), Linux, DOS, and Unix.
3. What is the purpose of multitasking?
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