Basic Parts of a Computer

Basic Parts of a Computer

Introduction

The basic parts of a desktop computer are the computer case, monitor, keyboard, mouse, and power cord. Each part plays an important role whenever you use a computer.

Computer Case

A computer case, also known as a computer chassis, tower, system unit, CPU (when referring to the case as a whole rather than the processor), or cabinet, is the enclosure that contains most of the components of a personal computer (usually excluding the display, keyboard, and mouse). Cases are usually constructed from steel (often SECC—steel, electrogalvanized, cold-rolled, coil) or aluminium. Plastic is sometimes used, and other materials such as glass, wood and even Lego bricks have appeared in home-built cases.

Monitor

A monitor is a piece of computer hardware that displays the video and graphics information generated by a connected computer through the computer's video card. Monitors are similar to TVs but usually display information at a much higher resolution. Also unlike televisions, monitors typically sit atop a desk rather than being mounted on a wall.

Keyboard

A keyboard is a peripheral device that enables a user to input text into a computer or any other electronic machinery. A keyboard is an input device and is the most basic way for the user to communicate with a computer. This device is patterned after its predecessor, the typewriter, from which the keyboard inherited its layout, although the keys or letters are arranged to function as electronic switches. The keys include punctuation, alphanumeric and special keys like the Windows key and various multimedia keys, which have specific functions assigned to them.

Mouse

A computer mouse is an input device that is used with a computer. Moving a mouse along a flat surface can move the cursor to different items on the screen. Items can be moved or selected by pressing the mouse buttons (called clicking).^[1] Today's mice have two buttons, the left button and right button, with a scroll wheel in between the two. Today, many computer mice use wireless technology and have no wire.

Power Cord

A power cord, line cord, or mains cable is an electrical cable that temporarily connects an appliance to the mains electricity supply via a wall socket or extension cord. The terms are generally used for cables using a power plug to connect to a single-phase alternating current power source at the local line voltage—(generally 100 to 240 volts, depending on the location). The terms power cable, mains lead, flex or kettle lead are also used. A lamp cord (also known as a zip cord) is a light-weight, ungrounded, single-insulated two-wire cord used for small loads such as a table or floor lamp.

Basic of Computer

Introduction

Computers have made great inroads in our everyday life and thinking. They are put to use for all sorts of applications ranging from complex calculations in the field or front line research, engineering simulations down to teaching, printing books, and recreational games. The ease with which computers can process data, store, and retrieve it painlessly have made them inevitable in office and business environments. The areas of applications of computers are confined only by limitations on human creativity and imagination. In fact, any task, that can be carried out systematically, can be performed by a computer. Therefore, it is essential for every educated person today to know about computers, its strengths, its weaknesses, and its internal structure. And that is what we are going to explain in this chapter

What is a Computer?

A computer is an electronic device that receives input, stores or processes the input as per user instructions and provides output in the desired format. Computers have become an integral part of our lives because they can accomplish easy tasks repeatedly without getting bored and complex ones repeatedly without committing errors. In this tutorial, we will discuss in detail the different parts of computer that enable it to carry out tasks efficiently and correctly. We will also discuss microprocessors, the brain of computers, which actually do all the assigned tasks.