Topic

Introduction to computer hardware

Definition

• Computer hardware is the collection of physical parts of a computer system.

• This includes the computer case, monitor, keyboard, and mouse.

• It also includes all the parts inside the computer case, such as the hard disk drive, motherboard, video card, and many others.

• Computer hardware is what you can physically touch.

Features of computer hardware

Name of features are:1. Monitor 2. Motherboard3. Cpu4. RAM5. Expansion card6. Power supply7. Optical disc drive8. Keyboard 9. Mouse And some others.

Basic concepts of computer hardware

Basic concepts of computer hardware

• Input/output: Refers to the process of getting information into and out of the computer.

• Input : Those part of the computer receiving information to program.• Output: Those part of the computer that provide result of computation to the person using the computer.

INPUT DEVICES

OUTPUT DEVICES

RAM

• Random-access memory (RAM /ræm/) is a form of computer data storage which stores frequently used program instructions to increase the general speed of a system.

KEY BOARD

• A computer keyboard is a typewriter-style device which uses an arrangement of buttons or keys to act as a mechanical lever or electronic switch.

MOUSE• A computer mouse is a pointing device (hand control) that

detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of a pointer on a display, which allows a smooth control of the graphical user interface.

Mother board

• It holds and allows communication between many of the crucial electronic components of a system, such as the central processing unit (CPU) and memory, and provides connectors for other peripherals.

Hard disk

• A hard disk drive (HDD), hard disk, hard drive or fixed disk[b] 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.

Monitor

• A computer monitor or a computer display is an electronic visual display for computers. A monitor usually comprises the display device, circuitry, casing, and power supply.

BASICS OF COMPUTER

USB FLASH DRIVEA USB flash drive, also variously known as a USB drive, USB stick, thumb drive, pen drive, flash-disk, or USB memory, [a] is a data storage device that includes flash memory with an integrated USB interface. USB flash drives are typically removable and rewritable, and physically much smaller than an optical disc.

SOME HARDWARES

Some computer hardware

CPU• A central processing unit (CPU) is the electronic

circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.