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TUTORIAL 3 OPERATING SYSTEM

1. What does an operating system consist of?a. Aset of usersb. A set of programsc. Aform of time-sharingd. Akernel program

2. In multiprogramming, how can two or more programs be executed?a. By optimizing compilersb. Simultaneouslyc. With two computersd. Concurrently

3. What is the technique in shared systems that avoid mixing print-out from severalprograms called?

a. Pagingb. Slicingc. Queuingd. Spooling

4. What is loading the operating system into personal computer called?a. Bootingb. Interruptingc. Promptingd. Paging

5. Which one of the following uses graphical icons?a. Command-line interfaceb. Utility programc. Paged. GUI

6. Which of the following operating systems contained the first commerciallysuccessful GUI?

a. Mac OSb. Windowsc. Unixd. Linux

7. Which of the following are functions of the operating system?a. File managementb. CPUmanagementc. Task management

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d. Bootinge. All the above

8. DOS and some versions ofUNIX are examples of _____________ interfacea. Old-fashionedb. GUIc. Command-lined. Command-driven

Fill in

1. The situation occurs when the CPU spends all its time swapping pages into and outof real memory is thrashing

2. Utility that reorganizes disk files into contiguous storage locations is the diskdefragmenter

3. Loading the operating system into memory is called booting4. GUI stands for Graphical Utilities interface5. Autility that reduces the amount of space required to store a file is a(n) file

compression program

6. In multitasking, a(n) interrupt is a condition that temporarily suspends programexecutions.

7. Autility that translates operating system commands into instructions that operatea peripheral is a(n) device driver

8. AUnix-like operating system that is available under the open-source concept isLinux

Answers all the questions

1. Briefly define booting.- Process of starting or restarting a computer orthe process of loading

an operating system into a computers main memory.

2. What is the difference between a command- driven interface and a graphical userinterface (GUI)

Command-driven interface Graphical user interface (GUI)

Command-driven interface, meaning GUIs display graphics and use the point-

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that the user had to type very specific

commands to get the computer to load a

program.The commands were not

always easy to understand; therefore the

interface proved to be too complicated forthe average user.

and-click technology of the mouse and

cursor, making operating systems much

more user friendly.

3. Why cant you run your computer without system software?We cant run our computer without system software because it is the main

program that controls how computer system functions. The OS provides us

with the tools (command) that enable us to interact with the PC. It is also

manages the computers hardware, including the processor, memory, and

storage devices, as well as peripheral devices. The operating system also

provides a consistent means for software applications to work with the

CPU. Additionally, it is responsible for the management, scheduling, and

interaction of tasks. The first interaction with the OS is the user interface.

That why we need system software to run our computer because of this

reason.

4. Why multitasking is useful?Multitasking allows the computer to switch rapidly back and forth among

different tasks. The user is generally unaware of the switching process.

5. What is utility program? Give such an example of utility programUtility programs are small programs that perform many of the general

housekeeping tasks for the computer, such as system maintenance and file

compression.

- programs (such as disk defragmenter utilities) manage systemresources;

- others (such as screen savers) help make your time and work on thecomputer more pleasant;

- still others (such as file compression utilities) improve efficiency. 6. What is the advantage of using a word processors templates?

The advantage of using a word processors templates is we do not have to

manually format complex documents .