COMPONENTS of Computer System1. Hardware2. Software3. Peopleware

HardwareRefers to physical component of the computer such as computer case, monitor, mouse, keyboard, speakers, and printer

SoftwareIt instruct the computer what to do. It is used to access, identify, and process information.

Peoplewarerefers to the people who are using the computer. The system will not be able to function without anyone operating it.

Types of Software1.Operating System2.Application

software

Examples of knownOperating Sytem

Microsoft WindowsMac OS XUnixLinuxGoogle Chrome OS

MicrosoftXenixMSX-DOSMS-DOS

Windows 1.0Windows 2.0Windows 3.0Windows 3.1xWindows 3.2Windows for Workgroups 3.11Windows 95Windows ChicagoWindows UtopiaWindows Plus! Windows 98Windows MemphisWindows Millennium EditionWindows NT 3.1

Windows NT 3.5Windows NT 3.51Windows 95 64-Bit EditionWindows NT 4.0Windows 2000Windows XPWindows WhistlerWindows V-smileWindows NeptuneWindows OdysseyWindows TridentWindows Server 2003 Windows Fundamentals for Leg

acy PCsWindows VistaWindows Home ServerWindows Server 2008Windows 7Windows Preinstallation Environment (WinPE) Windows CEWindows CE 6.0Windows Mobile Singularity Midori

Examples of common Application Software•Word Processing Software•Database Software•Spreadsheet Software•Multimedia Software•Presentation Software

•Application Suite• Microsoft Office• OpenOffice.org• I-work

CPU (Central Processing Unit)The CPU is the “brain” of the

computer. It processes the instructions from the computer user and manages information throughout the computer

system. The CPU is housed in the main computer case to which all other

components and parts such as the monitor and the keyboard are connected.

Types of Hardware

•Input device/hardware•Storage device/hardware•Output device/hardware

Input device

These are the hardware devices that inputs data into the computer for processing.

KeyboardMouseJoystickBarcode readerDigital cameraTouch panel

Touch screenMicrophoneWeb cameraModemScanner

Keyboard

The keyboard is a device that allows the user to enter information and instructions into a computer. The layout of the keys is mostly similar to a typewriter keyboard.

Mouse

A mouse is a small device that allows the user to select and move images on the computer screen. The movement of the mouse along a flat surface like table is reflected by the movement of the mouse cursor or the mouse pointer (an arrow shaped image) on the monitor screen.

Touch pad

Joystick

A rod-like device often used by people who play computer games.

Scanner

converts images such as photographs into digital images that

the computer can manipulate.

Barcode reader

Touch screen

Mostly common in tablet PC, usually require a stylus for accessing it.

Microphone

used to input sounds such as the human voice which can activate computer

commands in conjunction with voice recognition software.

Webcam

inputs images to the computer to communicate with other

computer users.

Digital Camera

Modem (modulator/demodulator)

The modem is a device that allows a given computer to share data

or otherwise communicate with another computer through a telephone

line.

Storage device

Provide permanent storage of information.

InternalHard diskRAMCD ROM DriveDVD ROM Drive

ExternalFlash DriveMemory CardCDs, DVDs, BluRay discsDiskettes

Hard Disk

Provides permanent storage of data in the computer.

RANDOM ACCESS MEMORY

Is a form of temporary storage. Today it takes the form of Integrated circuits that

allow stored data to be accessed in any order. “Random” refers to the idea that any piece of

data can be returned in a constant time, regardless of its physical location and whether

or not it is related to the previous piece of data.

CD Writer - a device used for

both reading and writing data to and

from a CD.

REMOVABLE MEDIA DEVICES

DVD (digital versatile disc) - a popular type of removable media that is the same dimensions as a CD but stores up to 6 times as much

information. It is the most common way of transferring digital video.

REMOVABLE MEDIA DEVICES

DVD-ROM Drive - a device used for

reading data from a DVD.

CD ROM

Acronym for Compact Disk-Read-Only Memory. It is a high-

capacity, storage device that uses compact disc technology to store large

amounts of information, up to 700 Megabytes (Mb), which is the

equivalent of some 300,000 pages of text, on a single disc

William “Bill” Gates sitting on a pile of paper that can be save on a single CD

Floppy Disks

The floppy disk, also called a diskette, is one device that stores data. It is removable and can be transferred between computers. The floppy disk fills the same role in a computer that the cassette does for the stereo.

Flash Drives

They are removable storage device connected to the usb port of a system unit.

Output device

These are the external hardware devices that transfer information from the computer’s CPU to the computer user.

MonitorPrinter Speaker

Monitor

The monitor is a TV screen that displays the text and other instructions inputted by the computer user, as well

as the responses generated by the computer itself.

LCD monitor (liquid crystal display)

CRT monitor (cathode ray tube)

Printer

The printer is an output device hardware that produces a paper copy

(also known as hard copy) of the information generated by the computer. This is opposed to information stored in electronic format on the computer itself on devices such as floppy disk and the CD-ROM drive, which is also known as

“soft” copy. Remember, hard copy equals physical. Soft copy equals electronics.

INKJET, LASER, DOT MATRIX

Speakers

Speakers are the hardware components that emit sound from the

computer. Computer speakers are generally identical the speakers used in ordinary audio system. One can usually

connect regular stereo speakers to a computer and have them work

normally.

PC POWER SUPPLY

it supplies power to run the rest of the

computer.

AVR (Automatic Voltage Regulator)

The AVR is a device connected to the power outlet into which the

computer connects its power cord. It protects the computer from damage

caused by electrical fluctuation such as power spikes and surges. Such damage can be very destructive; a sudden high

power surge can short-circuit the electronic components of your computer

and render it useless.

UPS (Uninterruptible Power Supply)

An uninterruptible power supply, also uninterruptible power source,

UPS or battery/flywheel backup, is an electrical apparatus that provides

emergency power to a load when the input power source fails.

PC COMPONENTS

FRYA LORA H. JAVIERTEACHER I ICT GROUP

TLE DEPARTMENTNUEVA ECIJA HIGH SCHOOL

INTRO LESSON FOR ICT