Chapter 2
Operating System And Its Importance
Exercises.
1. Choose the correct option.
a. Which of the following is an operating system?
i. Windows ii. Linux iii. Unix iv. All of these
b. Which Operating System is developed by CDAC, Chennai ?
i. Windows ii. BOSS iii. Unix iv. None of these
c. Which OS has fixed deadlines ?
i. Distributed ii. Real-time iii. Interactive iv. Batch Processing
d. Name a multiuser Operating system.
i. MS-DOS ii. BOSS iii. Unix iv. None of these
e. Name a version of macOS.
i. Mojave ii. High Sierra iii. Sierra iv. All of these
f. In which year was Windows OS released?!
i. 1980 ii. 1985 iii. 1983 iv. 1987
2. Fill in the blanks.
a. _________is the founder of Microsoft Corporation.
b. An operating system is a program which acts as an ___________between a user and the hardware
c. The operating system decides which job should use the _________ and for how long.
d. A computer System works with _________ .
e. Windows is an example of __________operating system.
f. Unix was originally developed in __________ by a group of AT&T employees.
3. State True or False.
a. Microsoft Windows has 15 versions since its first release in 1985.
b. Linux is different from proprietary software like Windows, which can only be modified by the company that owns it.
c IOS is Apple’s mobile operating system.
d. The latest version of Android is Unnati.
e. Windows comes pre-loaded on most new PCs.
f. macOS is Apple’s mobile operating system.
4. Short Answer Questions
1. What is an Operating System?
2. Mention the names of any two commonly used operating system.
3. When was the first version of Apple iOS released?
4. What do you mean by multitasking?
5. What is real-time operating system?
6. What is time sharing and distributive operating system?
5. Long Answer Questions
1. Explain any two functions of an Operating System?
2. Explain any two-operating system used in mobile phones
3. Write a short note on Windows operating system.
4. Write a note on the operating systems created by Apple.
5. What is BOSS?
6. Write a short note on Bill Gates.
7. What is Interactive Operating System? Where is it used?
8. What are the two important features that must be taken care while maintaining a directory?