PRESENTATIONON

COMPUTER HARDWARE

HARDWARE REPERESENT THE PHYSICAL AND TANGIBLE COMPONENTS OF THE COMPUTER.

THE ELECTRONIC , ELECTRICAL AND MECHANICAL EQUIPMENT THAT MAKES UP COMPUTER IS CALLED COMPUTER HARDWARE

PRIMARY HARDWA

RE COMPON

ENTS INPUT DEVICES

OUTPUT DEVICES

CENTRAL PROCESSI

NG UNIT(CPU)

STORAGE DEVICES

MEMORY

INPUT DEVICESAn input device is any hardware component used to enter data, programs ,commands and user responses into a computer. KEYBOARDMOUSE TOUCH SCREENSJOYSTICKMICROPHONE(MIC)SCANNERSMART CARD READER

LIQUID CRYSTAL DISPLAY (LCD) MONITORS PRINTERS SPEAKERS

OUTPUT DEVICES

Once data has been input into a computer and processed , It is of little use unless it can be retrieved quickly and easily from the system .To allow this ,the computer must be connected to an output device.

MEMORY OR PRIMARY MEMORY DEVICES

RAM(RANDOM ACCESS MEMORY )

ROM(READ ONLY MEMORY )

CACHE MEMORY

It is the read /write memory unit in which the information is retained only as there is a regular power supply.

RAM(RANDOM ACCESS MEMORY )

It stores data and instructions,even when the computer is turn off.It is permanent memoryof the computer .

ROM(READ ONLY MEMORY )

It is used to store the data and the related application that was last processed by the cpu.The cache memory can be either soldered into the motherboard or is availableas a part of “RAM”.

CACHE MEMORY

Since primary memory has a limited storage capacity and is not permanent ,secondary storage capacity and is not permanent ,secondary storage devices are used to store large amount of data permanently

• Hard disks• CD (compact disks)• Floppy disks• DVDs

STORAGE /SECONDARY MEMORY

The hard disks memories store information on one or more circular platters (disks) which are continually spinning.

HARD DISKS

The compact disks or optical media .The CD’s are relatively cheap and have a storage capacity of up to 700mb.there are three main type of CDs

CD-ROM( compact disk-read only memory) CD-R(compact disk-recordable) CD-RW(compact disk-rewritable)

CD (COMPACT DISKS)

DVD is an optical disc format, invented and developed by Philips , Sony ,Toshiba and Panasonic in 1995. DVDs offer higher storage capacity than compact disks while having the same dimensions.

DVD is high capacity optical disk capable of storing 4.7 GB to 17 GB

DVDs

A floppy disk, or diskette, is a disk storage medium composed of a disk of thin and flexible magnetic storage medium, sealed ina rectangular plastic carrier lined with fabric that removes dust particles. They are read and written by a floppy disk drive (FDD).

IT disk capable of storing 1.44mb only.

FLOPPY DISKS

Also known as switching-mode power supply, or switcher.

is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like main power, to a load, such as a personal computer, while converting voltage and current characteristics

SMPS(Switched-mode power supply)

A PROCESSOR is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system. The term has been in use in the computer industry at least since the early 1960s. The form, design, and implementation of CPUs have changed over the course of their history, but their fundamental operation remains much the same.

PROCESSOR (CPU)

A motherboard is the main printed circuit board (PCB) found in computers and other expandable systems. It holds many of the crucial electronic components of the system, such as the CPU and memory, and provides connectors for other peripherals. Unlike a backplane, a motherboard contains significant sub-systems such as the processor.

Motherboard specifically refers to a PCB with expansion capability - the board is the "mother" of all components attached to it, which often include sound cards, video cards, network cards, hard drives or other forms of persistent storage, TV tuner cards, cards providing extra USB or Fire wire slots, and a variety of other custom components.

MOTHERBOARD

A computer needs a semi-permanent way of keeping some start-up data

e.g. the current time, the no. of hard disks The data may need to be update/changed It requires (very little) power to retain its

contents.

CMOS

The Northbridge or host bridge was one of the two chips in the core logic chipset on a computer motherboard, used to manage data communications between a CPU and a motherboard. It is supposed to be paired with a second support chip known as a Southbridge.

NORTHBRIDGE

Clean-Tec chip & coolant fans from Lang provide a safer and faster method of removing chips and coolant from your tables, fixtures and workpieces than conventional air. The Clean-Tec chip & coolant fan can be programmed into your machining cycle to help reduce downtime and make necessary cleaning a part of the work cycle.

CPU FAN