Get to Know Computer

Definition of Computer

Computer is an electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined but variable set of procedural instructions (program) to produce result in the form of information or signals.

Computer Components

                     case

A computer case, also known as a computer chassis, tower, system unit, cabinet, or base unit, is the enclosure that contains most of the components of a computer.

               power supply

A power supply unit (PSU) converts alternating current (AC) electric power to low-voltage DC power for the internal components of the computer. Laptops are capable of running from a built-in battery, normally for a period of hours.

              motherboard

The motherboard is the main component of a computer. It is a board with integrated circuitry that connects the other parts of the computer including the CPU, the RAM, the disk drives (CD, DVD, hard disk, or any others) as well as any peripherals connected via the ports or the expansion slots.

• Microprocessor - This is the brain of your computer. It performs commands and instructions and controls the operation of the computer.
• Memory - The RAM in your system is mounted on the motherboard. This is memory that must be powered on to retain its contents.
• Drive controllers - The drive controllers control the interface of your system to your hard drives. The controllers let your hard drives work by controlling their operation. On most systems, they are included on the motherboard, however you may add additional controllers for faster or other types of drives.

                   hard disk

A hard disk drive (HDD), hard disk, hard drive or fixed disk is a data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.

                     CD-ROM

Short for Compact Disc-Read Only Memory, a CD-ROM is an optical disc which contains audio or software data whose memory is read only. A CD-ROM Drive or optical drive is the device used to read them.

                Floppy Disk

A floppy disk, also called a floppy, diskette, or just disk, is a type of disk storage composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic enclosure lined with fabric that removes dust particles. Floppy disks are read and written by a floppy disk drive (FDD). A floppy disk has about 1.4 Megabytes of memory capacity.

Here are other components of the computer.

source : https://en.wikipedia.org/wiki/Computer

            : www.comptechdoc.org/hardware/pc/begin/hwcomputer.html