computer hub in ambala ! batra computer centre

BATRA COMPUTER CENTRE

Website: www.batracomputercentre.com Ph.no.: 8222066670, 4000670


Hardware are the physical components of a computerEq- the input device, output devices, primary storage (memory) ans secondary storage (Backing store), control processing unit etc. Note that input and output devices are collectively as peripherals.

External Hardware Internal HardwareMonitor Hard drive

Printer CPU

Keyboard Fan

Mouse Motherboard

Microphone Sound card


Software are the sets of instruction / programs that are loaded into the memory of the computer in order to perform a task or to control the operation of the computer.

System Software Application Software

Operating Word Processors

Utilities Web Browser

User interface Game application


An input device is hardware that allows data to be entered into a computerManual Input Automatic Input

Keyboard Barcode reader

Mouse Sensor

Microphone Magnetic Stripe reader

Scanner Optical mark reader (OMR)


A storage device is hardware that allow data to e saved, long-term, after it has been inputted into the computer. Example include: Hardware drive DVD CD Flash Memory (USB)


A storage device is hardware that allow data to e saved, long-term, after it has been inputted into the computer. Example include: Monitor Printer Projector Speakers


A computer system is one that is able to take a set of inputs, process them, and create a set of outputs. This is done using a combination of hardware and software.

Program

Process

Storage

Input Output


The Purpose of an input device is to provide data in a computer ready for processing

Digital dataConvertPhysical

Effect


The purpose of a storage device to store data software for later use. The storage device will make some use of physical effect to represent the data. CD, DVD, Blu-Ray – a laser burns dark pits

into the medium. Hard drive and magnetic taps use

magnetic domains to represent data Flash drive use electric charge to store the

dataA primary storage device is the main computer storage device, and a secondary device is one where you can also store files, but it is not the main storage you use.


Output is the storage where the

information obtained by the processing

is presented to the user in a suitable

format. Eq:-

A printout of exam grade

A Digital display on the petrol pump

A sound from a smoke alarm

Digital data

Convert Physical Effect


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ADDRESS: SCO -15, Dayal Bagh, Near Hanuman Mandir Ambala Cantt-133001 HaryanaPh. No.: 9729666670, 8222066670 &0171-4000670Email ID: [email protected]: www.batracomputercentre.com

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