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. ​ .