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Computer engineer Harry Sir, popularly known as IT Guru, has been teaching college level students for the last 13 years. Along with graduation in Computer Science, Harry Sir has acquired knowledge in various academic fields including Masters in Computer Science, Masters in Police Administration, Masters in Public Administration, Masters in History, and Panchayati Raj. Today, more than 3000 students taught by Harry Sir are working in government jobs on various posts (computer teacher, computer instructor, information assistant, IT officer in banks). Many books have been written by Harry Sir which have been published at international and state level. Please note that Engineer Harry Sir no longer takes offline classes but only teaches online on ‘IT EXAM GURUJI‘ app. With best wishes for your successful future – Team Computer Swan.

What is a complementary metal-oxide semiconductor (CMOS)

What is a CMOS | Full Form, Working Principle & Its Applications.

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The CMOS chip is a small piece of hardware that stores essential information, such as date and time, hardware settings, and BIOS (Basic Input Output System) configurations. It uses SRAM (Static RAM) to retain this data even when the computer is turned off. The CMOS chip also has a battery backup to provide the tiny amount of power needed to keep the SRAM alive.

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What is BIOS (Basic Input Output System) How does it work

What is BIOS (Basic Input/Output System)? BIOS Functions & Working.

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BIOS, or Basic Input/Output System, is a important firmware program stored on a chip embedded in your computer’s motherboard. This program comes pre-installed by the motherboard’s manufacturer and resides within an Erasable Programmable Read Only Memory (EPROM) chip. Within this chip, a set of instructions takes the form of a program. When you ‘power-on’ your computer, the microprocessor hands over control to the BIOS program, which always resides in this chip.

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System Calls in Operating System (OS)

System Calls in Operating Systems (OS): Examples & Types of System Call In OS

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System calls play a vital role in enabling programs to interact with the operating system. They serve as the bridge between user programs and the OS, providing access to OS services through an API. Whether written in assembly language or high-level languages like C or Pascal, system calls are predefined functions directly invoked by the OS when using high-level languages.

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What is a Virtual Machine? | VMware Virtualization and Cloud Computing Software.

What is a Virtual Machine? | VMware Virtualization and Cloud Computing Software.

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VirtualBox and VMware Workstation are leading virtualization software solutions that empower users to create and manage virtual machines (VMs) effortlessly. These versatile platforms enable resource-efficient emulation of multiple operating systems on a single host, optimizing resource utilization and streamlining software development and testing. With VirtualBox’s open-source flexibility and VMware Workstation’s robust features, users can choose the best fit for their virtualization needs. These solutions provide cost-effective alternatives for businesses seeking scalability, security, and disaster recovery solutions. Whether you’re an IT professional, developer, or business owner, harnessing the power of VirtualBox or VMware Workstation can elevate your computing experience and streamline operations.”
VirtualBox, VMware Workstation, Virtualization Software, Virtual Machines, Resource Utilization, Software Development, Disaster Recovery, Scalability.

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Types of Operating Systems (OS) Features and Functions with Examples. computerswan.com

Types of Operating Systems (OS): Features and Functions with Examples

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Whether you’re curious about how your favorite applications run seamlessly or the technology powering networks, multi-processing, batch, time-sharing, networked, real-time, multi-programming, multi-tasking, and distributed This exploration of the operating system promises to be an eye-opening experience.”

Lets discuss various types of operating systems (OS) with examples and take a closer look:

Multi-Processing System.
Batch Operating System.
Time-Sharing Operating System.
Network Operating System.
Real-Time Operating System.
Multi-Programming System.
Multi-Tasking Operating System.
Distributed Operating System.
Network Operating System.
Real-Time Operating System.

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#3 Explore the intricate world of operating system functions and services

Functions and Services of Operating System (OS)

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Explore the intricate world of operating system functions and services- An operating system (OS) is a fundamental software component that manages and facilitates various functions and services on a computer or device. It serves as an intermediary between the hardware and software, providing a stable and efficient environment for users and applications. Here are the key functions and services of an operating system:

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What is Kernel in an Operating System (OS) Types and Functions of Kernel. computerswan.com

What is Kernel in an Operating System (OS)? Types and Functions of Kernel

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A kernel is the most important program of the operating system package. It can be said that it is the boss of the entire operating system. It has control over the entire operating system, everything in it, every functioning system. The kernel does not directly interact with the user. Establishes coordination and communication with other programs, hardware, devices, processors, memory, disk drives, shells, etc. of the operating system. The kernel monitors and controls every event and functioning of the operating system,

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What is an Operating System (OS) Definition, Types, and Functions of Operating System COMPUTERSWAN.COM

What is an Operating System (OS)? Definition, Types, and Functions of Operating System

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operating systems act as an intermediary between users and computer hardware and run other applications. Nowadays, Microsoft company’s operating systems like Windows XP, Windows 7, Windows 10, and Windows 11 are very popular all over the world. It is not that only Microsoft company makes operating systems, other companies also make operating systems like Apple company’s Mac OS and Linux, There are many operating system flavors but Microsoft company’s operating systems are more user-friendly and have a graphical interface. On which even an unknown person can work.

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