Computer All Parts Pic

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What is a computer?

An electronic device, operating under the

control of instructions stored in its own

memory unit, that can accept data,

manipulate the data according to specified

rules, produce information from the

processing, and store the results for future

use.

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The parts of Microcomputer

system:

Hardware (Commonly

known as the

computer)

Software (Commonly

Known as the

program)

Data (Raw facts thatcan be manipulated)

People (The user)

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Parts of a Microcomputer

system:

Hardware:

A computers hardware consists of electronicdevices; the parts you can see and touch.

The term device refers to any piece of

hardware used by the computer, such as a

keyboard, monitor, modem, mouse, etc.

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The parts of Microcomputer

system: Software:

Software- also called programs- consists of

organized sets of instructions for controlling

the computer.

Some programs exist for the computers

use, to help it manage its own tasks and

devices.

Other programs exist for the user, and

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Software Can be categorized into

four types

System software

Application software

Educational software Entertainment software.

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Operating Software

Microsoft Windows

Mac OS

UNIX and LinuxDOS

Handheld Operating Systems, etc.

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Popular operating software

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Application Software

MS-Word

MS-Excel

MS-Access MS- Power point,etc.

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Information Processing Cyclefour

general operations

Input

Processing

Output Storage

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The Architecture of CPU

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The term microcomputeris generally synonymous with

Personal computer (pc), or a computer that depends on a

microprocessor. Microcomputers are designed to be used by

individuals, whether in the form of PCs, workstations ornotebook computers. A microcomputer contains a central

processing unit (CPU) on a microchip (the microprocessor),

a memory system (typically read-only memory and

random access memory), a bus system and I/O ports,

typically housed in a motherboard

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Personal Computer

(Microcomputer)

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What are the components of a

personal computer?

Input devices

Central processing unit (CPU)

Output devices Memory

Storage devices

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Devices that comprise a personal

or microcomputer.

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Input Devices

Keyboard

Mouse

Digital camera Scanner

Microphone, etc.

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Input Devices

Digital

Camera

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Output devices

Monitor

Printer Speaker, etc.

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Output devices

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Input/Output Ports

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Keyboards

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Keyboard

A keyboard is an input device modeled after thetypewriter keyboard. A keyboard has characters on thekeys and each press of a key corresponds to a singlewritten symbol.

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A computer keyboard

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Types of keyboards

Standard

Standard keyboards, such as the 101-key keyboards or the 104-key keyboards, include alphabetic characters, punctuationsymbols, numbers and a variety of function keys.

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Mouse

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Mouse

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Serial /mechanicalmouse

Optical Mouse

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Optical Mouse

The mouse has a small, red light-emitting diode (LED) thatbounces light off that surface onto a complimentary metal-oxide semiconductor (CMOS) sensor

The CMOS sensor sends each

image to a digital signal

processor (DSP) for analysis

The computer moves the cursor on the screen based on thecoordinates received from the mouse. This happens hundredsof times each second, making the cursor appear to move verysmoothly

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Anatomy of a Personal Computer

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Microprocessor Motherboard/Bus

Operating System

Power Memory

Input/Output Ports

Input Devices Data Storage Devices

Display

Peripherals26

Anatomy of a Computer

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Microprocessor

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Ram (Random access memory)

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Processors & Memory

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Power Supply

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What is Motherboard?

Primary and the most important component ofthe computer

Multi-layered Central Printed Circuit Boardinside the PC that contains and controls thecomponents that are responsible for processingdata

Provides electrical connection by which the other

components of the system communicate Copper circuit paths called traces carry signalsand voltages across the motherboard

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What is Motherboard?

Some layers carry data for input/output whileother layers carry voltage and groundreturns

As far as its name is understood, themotherboard hosts some important partssuch as BIOS and RAM etc. We can connectamong devices

It is sometimes alternatively known as themain board, baseboard, system board,Planar board or, the logic board

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http://en.wikipedia.org/wiki/Logic_boardhttp://en.wikipedia.org/wiki/Logic_board


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Motherboard Hardware

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VGA

Switches/

LED's

Floppy

Power

2 IDE Channels 2 USB Heads

PCI (not

available)

PC/104

Network

Serial (RS232)

Parallel

Discrete

I/O

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Motherboard Contains

CPU Socket

USB Connector

DIMM Socket Chipset

BIOS

CMOS ISA Slot

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PCI Slot

ATX Connector

COM PortsAGP Slot

IDE Connector

Floppy DriveConnector

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Data Storage Devices

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STORAGE DEVICES

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Disk Storage:Holds permanent data and

programs.Three major distinctions between

disks and memory

a) disks have more storage

b) disks are durable

c) disks are cheaper

Common is magnetic disk (hard

disk, floppy disk).

Optical disk (CD-ROM).

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Using technology that was

developed in the 19th century.

In 1997, manufactures began

to offer full size LCD monitorsas alternatives to CRT

monitors

First LCD laptop monitors

were very small due to

manufacturing costs.

Light, sleek, energy-efficient, have sharp picture.

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Casing

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