Gujarat State Board Class 9 Computer Ch 5 Introduction to Computer System Solution

Gujarat Board Class 9 Solution Computer Chapter 5 Introduction to Computer System Exercise Solution here in this Post.

Board

GSEB Gujarat State
Textbook

9 Class

Medium

English
Subject

Computer Studies

Chapter

5
Chapter Name

Introduction to Computer System

Gujarat Board Class 9 Computer Chapter 5 Introduction to Computer System Solution:

1) List the major functions of an operating system .

Ans:-  The basic functions of an Operating System are as follows:-

i) Providing Hardware access as a common services:- Computer system is made up with the combination of Hardwares and Softwares. The operating system gives the instructions to the hardwares which are been attached to the computer system, and controls the entire workings of the hardware.

ii) Controlling regulating and supervising resources in the computer:- Modern computers are much more powerful, that they can access, the memory storage, power etc. Compilers are not only able of running only one programs at a time, but can run more than one or many programs at a time. This is called as Multiprogramming. When one is running at a time, the computer has the ability of accessing the resources. When the two programs are running at a same time, you can start printer at the same time by giving same storage locations.

iii) Starting and stopping programs execution:- when the computer starts, it runs the operating system. During the booting of computer operating system also runs a special program called as shell. Shell provides the user interface to the user. It accepts the requests for performing operations in the form of clicking the mouse button, typing a command, touching a touch panel etc and fullfills the operations/requests. System requests the operating system to start or close any programs as if operating system has fully control over the system.

iv) Controlling Access to the memory:- The main memory is the important resource that matches the speed of thd CPU. Any program must be first loaded and rubbed on main memory, and non trivial data set must be manipulated in main memory for its manipulation. Operating system controls the accessing of main memory just like other resources.

v) Serving multiple users at the same time:- An O.S is designed as a single user system(used by one user at a time) or multi user system(used by many at a time). It is actually helpful to run thd program of many users on a single computer known as server, each user performing the I/O through the devices like mouse, keyboard and monitor. This is much helpful when all the users cannot be provided with powerful computers, the single computer must be shared among many.

A multiuser system provides the benefits of file sharing. The system at a far distance can be easily accessed with the help of internet.

vi) Providing security:- As if the many users are using the same computer system. O.S must provide some level of privacy between the users, so that they cannot disturb the work of each other’s. As if the users are geting together on a joint project at the same time, they must be able to share the resources. The O.S must provide secured mechanism where all permitted resources are used and unauthorised ones are rejected. With the use of computer networks and internet, anyone can access thd computer system which is far distance away. Its much helpful to the organization’s having different branches at different places in the world or for the staff who have to travel from one place to another due to work. Anyone can access anyoneones computer can be a drawback.

2) What is multiprogramming?

Ans:-  Multi programming is a process of more than one programs on a single computer by using the technique of Multiprocessing (a computer having more than one CPU processor).

3) What is a multiprocessor system?

Ans:-  Having more than one CPU processors in a computer system is termed to be as multiprocessor system.

5) How does a multi user system work?

 Ans:-   An O.S is designed as a single user system(used by one user at a time) or multi user system(used by many at a time). It is actually helpful to run thd program of many users on a single computer known as server, each user performing the I/O through the devices like mouse, keyboard and monitor. This is much helpful when all the users cannot be provided with powerful computers, the single computer must be shared among many.

A multiuser system provides the benefits of file sharing. The system at a far distance can be easily accessed with the help of internet. This also help the organization’s to diagnose and solve the problems of the staff of accessing computers in different offices,  without wasting time on physical travelling.

6) Why is security important in multi user system?

 Ans:- As if the many users are using the same computer system. O.S must provide some level of privacy between the users, so that they cannot disturb the work of each other’s. As if the users are geting together on a joint project at the same time, they must be able to share the resources. The O.S must provide secured mechanism where all permitted resources are used and unauthorised ones are rejected. With the use of computer networks and internet, anyone can access the computer system which is far distance away. Its much helpful to the organization’s having different branches at different places in the world or for the staff who have to travel from one place to another due to work. Anyone can access anyoneones computer can be a drawback.

 7) List the typical components of an operating system?

 Ans:- The typical components of an operating system are:-

i) Device drivers:- Hardwares are the basic parts which are attached to the computer but cannot perform the work on its own. So, Device drivers are the small sets of programs/instructions which are used for working of hardwares. Such drivers are bundled with operating system or may be loaded/ installed from a separate disk or internet. These drivers are loaded or unloaded as per the requirements of the kernal(uses it for controlling or operating of hardwares).

ii) Kernal:- It is the important part/ program of the operating system. Mostly Kernal performs the work of operating system like detecting of newly attached hardwares, accessing of drivers as required by the hardwares, controlling and operation of hardwares l, creating, stoping and starting the execution of programs, providing cpu, I/O/memory management, resource allocation, security etc.

 iii) The shell:- The shell is an important part of O.S which allows the user to express their wishes to the system by providing user interface (UI). There are two types of interfaces which are CLI (Command Line Interface) and GUI (Graphical User Interface). The CLI only accepts the textual based commands from the user and executes it. Typing skills are required to operate such system.In earlier days there was no development in the technology, the CLI was the only option. But later GUI (Graphical User Interface) was developed. In GUI the screen contains pictures like the desktop which acts as a background for everything, windows, icons, menus, buttons etc. The window can be resized, minimized or maximized. Besides keyboard there is mouse pointer on mouse or trackpad  for input.On the screen, there are two to three buttons and a scroll wheel) area too.

  8) What is the kernal? What are its main types?

 Ans:-  It is the important part/ program of the operating system. Mostly Kernal performs the work of operating system like detecting of newly attached hardwares, accessing of drivers as required by the hardwares, controlling and operation of hardwares l, creating, stoping and starting the execution of programs, providing cpu, I/O/memory management, resource allocation, security etc.

9) Difference between CLI and GUI?

 Ans:-  The CLI only accepts the textual based commands from the user and executes it. Typing skills are required to operate such system.In earlier days there was no development in the technology, the CLI was the only option. But later GUI (Graphical User Interface) was developed. In GUI the screen contains pictures like the desktop which acts as a background for everything, windows, icons, menus, buttons etc. The window can be resized, minimized or maximized. Besides keyboard there is mouse pointer on mouse or trackpad  for input.On the screen, there are two to three buttons and a scroll wheel) area too.

10) What is a file system?

Ans:- The file system is a system which helps in organizing and accessing of the files or directories from the secondary storage devices. There are plenty of files and sub directories stored in a directory. In other words, file system plays the role of file management.

11) Why do we need a file system?

Ans:- The main need of a file system is to store, update, access or arrange the files from the directories as if there are many number of files and sub directories stored . Each file is identified by a unique name or address, which helps the user in not remembering the names or address of the files or sub directories.

12) What is a QR code?

Ans:- The QR code is an encoded picture which contains the information about any product, place or for any application in a coded form. The user have to first scan the code and access it. The QR code can be scanned by a barcode reader or by taking a picture from the camera. The QR codes can be mainly seen on the payment gateway applications like Google pay, Paytm, Whatsapp etc.

13) What are the common features of the tablets?

Ans:- The common features of tablets are as follows:-

i) Tablets generally have 7 inches or 10 inches of touch screen.

ii) Tablets are generally small in size as compared to PCs.

iii) Tablets less power processing, less memory, as compared to Computer system.

iv) Due it’s small size tablets are generally portable.

14) Choose the most appropriate option from those given below:-

1) What is the full form of BIOS?

Answer: d) Basic Input Output System

 2) Which of the following component acts as an intermediary between the operating system and the hardware?

Answer: c) device drivers

3) Which of the following is a function of the operating system?

Answer: d) All of these

4) Which of the following component of the operating system interacts with the user?

Answer: a) shell

5) The hardware devices are directly accessed by which of the following entity?

Answer: a) The operating system.

6) Whic of the following is the core component of an operating system?

Answer: b) the kernel.

7) What is the full form of CLI?

  Answer: a) Command Line Interface.

8) What is the full form of GUI?

Answer: c) Graphical User Interface.

9) Which of the following cannot be an object in a file system?

Answer: c) user data

11) Which of the following is NOT a limitation on a smart phone?

Answer: a) processing power

12) Which are the smallest computers on the planet?

Answer: a) smart phones

13) Which operating system family is present in all categories of devices?

Answer: b) Unix/Linux

14) Android is developed by-

Answer: c) Open Handset Alliance

Updated: December 30, 2020 — 12:02 am

6 Comments

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  1. Where is the Question number 10 of MCQs please upload

    1. Question 10 of MCQs

    2. Free OS

  2. The answer of questions 12 is wrong it correct answer is smartphones

  3. Thanks a lot

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