FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Operating system software tells the computer how to perform the functions of loading, storing and executing an application and how to transfer data. Today’s operating systems have a graphical user interface (GUI) that provide visual clues such as icon symbols to help the user.

Detailed explanation-2: -The bootstrap loader, or boot loader, is a small program that has a single function: It loads the operating system into memory and allows it to begin operation. In the most basic form, the bootstrap loader sets up the small driver programs that interface with and control the various hardware subsystems of the computer.

Detailed explanation-3: -Operating system (OS) – a software that controls and coordinates the computer hardware devices and runs other software and applications on a computer. It is the main part of system software and a computer will not function without it.

Detailed explanation-4: -The device from which the operating system is loaded is known as the boot device. The Basic Input/Output System (BIOS) of a contemporary PC supports booting from various sources. These consist of a USB device, a network interface card, a local hard drive, an optical drive, a floppy drive, and a network card.