different of computer

8/6/2019 Different of Computer

1/38


2/38

PCThe personal computer (PC) defines a computer designedfor general use by a single person.


3/38

D

esktop A PC that is set up in a permanent location(notportable).

Most desktops offer more power, storage andversatility for less cost than their portable

brethren.


4/38

Laptop Also called notebook. Laptops are portable computers that integrate

the display, keyboard, a pointing device ortrackball, processor, memory and hard drive all

in a battery-operated package slightly largerthan an average hardcover book.


5/38

Palmtop More commonly known as PersonalDigital

Assistants (PDAs), palmtops are tightly integratedcomputers that often use flash memory instead of a

hard drive for storage. These computers usually do not have keyboards but

rely on touchscreen technology for user input.


6/38

WorkstationA desktop computer that has a more powerful

processor, additional memory and enhancedcapabilities for performing a special group oftask, such as 3DGraphics or gamedevelopment.


7/38

ServerA computer that has been optimized to provideservices to other computers over a network.Servers usually have powerful processors, large

memory and hard drives.


8/38

Minicomputer Another term rarely used nowadays.Minicomputers fall in between microcomputers(PCs) and mainframes (enterprise servers).

Minicomputers are normally referred to as mid-range servers now.


9/38

Mainframe In the early days of computing,

mainframes were huge computersthat could fill an entire room or even

a whole floor. The size of computers has

diminished while its power hasincreased, the term mainframe hasfallen out of use in favor ofenterprise server.

The huge machines processingmillions of transactions every day.


10/38

Supercomputer This type of computer usually costs hundreds of

thousands or even millions of dollars. Although some supercomputers are single

computer systems, most are comprised of

multiple high performance computers working inparallel as a single system.

The best known supercomputers are built by CraySupercomputers.


11/38

Wearable The latest trend in computing is wearable

computers. Essentially, common computer applications

(e-mail, database, multimedia,

calendar/scheduler) are integrated intowatches, cell phones, visors and even clothing.


12/38

Computer Parts andComponents


13/38

Input devices are any electronic devicesconnected to a computer that product input

signals


14/38

Text Graphics

videoAudio

PointingDevice

5 Types


15/38

Keyboard- to enter data (text) andcommands

Virtual Keyboard (on the screen)- to enter data and commands

Optical Reader & Barcode Reader- to converts characters, marksand codes into digital data


16/38

Scanner- captures image

Digital Camera

- take picture


17/38

Microphone- to enter sound

Midi Keyboard- to enter music


18/38

CCTV

Webcam

Digital Video Camera

To capture motion images


19/38

Mouse Trackball

Graphics Tablet TouchScreen

To input spatial data


20/38

Output Devices


21/38

An output device is hardware that is capableof delivering or showing information to one or

more users. An output device displays, printsand presents the results of a computers work.


22/38

A display device is an output device thatvisually conveys texts, graphics and videoinformation.


23/38

A monitor is an example of an output devicethat can be used to display texts, graphics andvideos.


24/38

A Liquid Crystal Display (LCD) projectorprojects what is displayed on the computer ona wall or projection screen.


25/38

A printer is an output device that prints text andgraphics on a physical medium such as paper ortransparency film.


26/38

A photo printer is a colour printer that producesphoto quality pictures.


27/38

An audio output device produces music,speech, or other sounds.Examples of output devices are speakers,

headphone and woofer.

Speaker Headphone Woofer


28/38

A pair of speakers is an audio output device thatgenerates sound.


29/38

The headphone is a pair of small speakersplaced over the ears and plugged into a porton the sound card.


30/38

A woofer or subwoofer is used to boost thelow bass sound and is connected to the porton the sound card.


31/38

What Is Computer Storage?

Information and computer storage is thedocument are stored in storing of data in ancomputer storage so electromagnetic form tothat it can retrieved be accessed by a whenever

they are computer processor needed later on.


32/38


33/38

Types of Computer Storage

1. Primary storage2. Secondary storage

PrimaryStorage

Primary storage is the main memory in acomputer. It store data and programs that canbe accessed directly by the processor.


34/38

Types of Computer Storage

TypesOf Primary Storage

There are two types of primary storage which are

RAM and ROM


35/38

Secondary storage is another alternativestorage to save your work and documents. It isvery useful to store programs and data for

future use. It is non-volatile, which means thatit does not need power to maintain theinformation stored in it. It will store theinformation until it is erased.


36/38

Harddisk

Diskette

Removabledrive

Compact

Disc


37/38

User will input the data to be processed by

the processor.

The storage holds databases, files and

programs.

The output devices present the processed

data as useful information products for the

user.

Computer Parts & Components


38/38

INPUT

PROCESSOR

STORAGE

Overview of ComputerSystems

OUTPUT

different of computer

Documents