Operating System

Operating System

Reason — Operating System acts as an interface between hardware and user.

Shell

Reason — Shell handles the interaction with users.

Processor Management

Reason — Processor Management is the function of an operating system which ensures that each process receives enough time (by the processor) to function properly.

System

Reason — Operating System is a type of System software.

Multithreading

Reason — Multithreading operating system allows different parts of an application to run simultaneously.

Smartphones

Reason — Mobile operating system is particularly designed to operate smartphones.

Windows 7

Reason — Windows 7 is a Multitasking operating system.

GUI

Reason — Windows operating system has a Graphic User Interface.

Windows 3.1

Reason — Windows 3.1 is an example of Single User operating system.

Apple

Reason — iOS is a mobile operating system developed by Apple company.

1969

Reason — UNIX operating system was developed in the year 1969.

HTC Dream

Reason — HTC Dream was the first commercially available phone to run Android.

kernel

Reason — Kernel is loaded first and remains in the memory until the operating system is shut down.

Microkernel

Reason — Microkernel contains different modules, which can be dynamically loaded un-loaded.

Multi user

Reason — Multi user Operating Systems allow more than one user to use the same computer at the same time or different times.

Real time

Reason — Real time operating systems have the capability to prioritize the processes, minimize execution time, and work independently with no interdependencies.

Linux

Reason — Linux is a high performance, yet completely free, Unix-like operating system, which is suitable for use on a wide range of computers and other products.

File System

Reason — File System defines the ways in which files are named and where they are placed logically for storage and retrieval.

True

Reason — A Computer requires specific instructions to perform each and every task as it has limited IQ.

False

Reason — Kernel handles the interaction with hardware.

True

Reason — A user's interface to the operating system is called a shell.

False

Reason — Shell provides a way for a user to communicate with the operating system.

False

Reason — Microkernel are packaged into different modules such as Device Management, File System, Network Protocol, etc.

False

Reason — Shell is the outermost layer of the operating system and manages the interaction between a user and the operating system.

True

Reason — An operating system manages the working of the processor by allocating various jobs to it.

False

Reason — Input devices are controlled by the operating system.

True

Reason — An operating system keeps track of information regarding creation, deletion, transfer, copy, and storage of files in an organized way.

False

Reason — Microsoft DOS is a single-user operating system.

False

Reason — In CUI based operating system, the user has to cram all the commands.

True

Reason — Multi-user operating systems allow more than one user to use the same computer at the same time or different times.

True

Reason — Linux and Unix are multiuser operating system.

False

Reason — Distributed Operating System runs on computers, which are located in different geographical areas, interconnected through a network.

True

Reason — Unix operating system was developed in 1969 by a group of AT&T employees at Bell Labs.

False

Reason — UNIX operating system was initially developed in Assembly language.

True

Reason — Android is an open source platform operating system.

An operating system is an integrated set of programs that manages various resources and the overall operations of a computer system. It is designed to support the various activities of the computer system in a systematic way. For example, Microsoft Windows, Linux, etc.

The different types of Operating System are:

1. Single User Operating System
2. Graphical User Interface
3. Multi-user Operating System
4. Multitasking Operating System
5. Multithreading Operating System
6. Real time Operating System
7. Distributed Operating System

Mobile Operating is particularly designed to operate smartphones, PDAs, tablets and other mobile devices. Mobile Operating System is a software, which provides platform on which other programs or applications can run on mobile devices. It has empowered the users to check their mails, files, and to work on the data from anywhere and anytime.

Some examples of Mobile Operating System are BlackBerry (RIM), Android (Google), iOS (Apple), Symbian (Nokia), and Windows Mobile (Microsoft).

i. BOSS — Bharat Operating System Solutions

ii. GUI — Graphical User Interface

iii. OS — Operating System

iv. CUI — Character User Interface

a. Android operating system — Android is the world's most popular Mobile Operating System. It is an open source (Linux based) platform initially developed by Android Inc. in October 2003, and later on purchased by Google Inc. in 2005.

The green robot is the logo for the Android operating system. Android OS turns our phone into a powerful web browser, game console, and personal assistant all in one. It was primarily designed for touchscreen portable devices such as smartphones and tablet computer. Android powers some of the best handset and tablet manufacturers in the world like Samsung, HTC, Motorola, Sony, Asus, and many more.

b. iOS operating system — iOS is a mobile operating system developed by Apple. It is the world's most advanced mobile operating system. It was originally released in 2007 and is used to run the iPhone, iPad, and iPod Touch.

iOS offers multitasking features that allow the applications on iphone to perform tasks in the background which in turn preserves battery life, and moreover, increases performance.iOS devices are created exclusively for its hardware. Apple designs the iOS devices to maintain a high level of security without compromising the user's experience.

The operating system provides various techniques which assures the integrity and confidentiality of user's data. Following are the security measures which are used to protect the user's data from threats and intrusion:

1. Protection against unauthorized access through login and password.
2. Protection against intrusion by keeping the firewall active.
3. Protecting against malicious access to system memory.
4. Displaying messages related to system vulnerabilities.

Kernel is the core component of an operating system which acts as an interface between applications and the data processing being performed at the hardware level. The kernel is responsible for performing the following tasks:

1. I/O management
2. Memory management
3. Process management for application execution
4. Device management (through the use of device drivers)
5. System calls control

Android is the world's most popular Mobile Operating System. It is an open source (Linux based) platform initially developed by Android Inc. in October 2003, and later on purchased by Google Inc. in 2005.

The green robot is the logo for the Android operating system. Android OS turns your phone into a powerful web browser, game console, and personal assistant all in one. It was primarily designed for touchscreen portable devices such as smartphones and tablet computer.

Android powers some of the best handset and tablet manufacturers in the world like Samsung, HTC, Motorola, Sony, Asus, and many more.