(Revision) Operating System and Graphical User Interface FILL in the BLANKS with the CORRECT WORDS: 1

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Class 8 Chapter 2 (Revision) Operating System and Graphical User Interface FILL IN THE BLANKS WITH THE CORRECT WORDS: 1. The booting process involves running a series of tests to ensure that the computer system is operating properly and loading the operating system into RAM. 2. An interactive operating system uses a user interface. 3. CUI does not support pointing devices like mouse. 4. Windows is the most common operating system used nowadays. 5. A multi-user operating system allows more than one users to use the same computer. STATE WHETHER TRUE OR FALSE. CORRECT THE FALSE STATEMENTS: 1. An operating system is required for controlling the hardware and software resources of the computer. (TRUE) 2. A mouse can be used to select the items on the screen in CUI. (FALSE) (A mouse is used in GUI) 3. Distributed operating systems are always installed on a single computer. (FALSE) (Distributed OS is used in multiple computers) 4. CUI is user friendly and easier to use than GUI. (FALSE) (GUI is easier) CHOOSE THE CORRECT OPTION: 1. Which of the following is the master control program of a computer? a. Operating System b. MS Word c. MS Excel d. None of these 2. Which of the following is/are popular operating system(s) for mobile phones? a. Android b. Windows mobile c. iOS d. All of these 3. Which of the following interface is mostly used in modern computers? a. CUI b. GUI c. UI d. None of these 4. We can work on more than one software in ________. a. CUI b. GUI c. Both (a) and (b) d. None of these Descriptive Type Questions a. What do you mean by booting? The process of turning on a computer and loading the operating system into the RAM is known as booting. b. Give the full forms of CUI and GUI. CUI – Character User Interface GUI – Graphical User Interface c. Give one example of interactive and another of batch processing OS. Windows is an Interactive OS. MVS is a batch processing OS. d. Give two examples of distributed OS. Linux and Windows 2003 are distributed operating systems. e. Give two examples of real-time OS. Windows CE and Lynx OS are real-time operating systems. f. Give one example of single-user, and another of multi-user OS. DOS is a single-user OS. Unix is a multi-user OS. g. What is a user interface? A user interface refers to the hardware-software mechanism by which a user and a computer interact with each other. h. Differentiate between GUI and CUI. Following are the differences: CUI GUI Uses keyboard and Mainly uses mouse monitor for interface. for interaction. It displays icons, A blank screen for the buttons and dialog user to type commands. boxes on the screen. MS DOS and Windows i. Windows 7 is an Command Prompt are example of GUI. examples of CUI. FULL FORMS: BIOS – Basic Input Output System OS – Operating System UI – User Interface WIMP – Window, Icon, Menu, and Pointer. .

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