Warrawong Community Centre

Developing Basic Computer Skills

Introductory slides

What is a Computer?

Computers are everywhere

What is a Computer?

How is a computer defined?Electronic device operating under the control of instructions stored in its own memory

Produces and stores results

Processes data into informationinformationData that is organized, meaningful, and useful

Accepts datadata

Raw facts, figures, and symbols

The Components of a Computer

The Components of a Computer

Parts of a Computer System

MonitorMonitorA A monitormonitor or a display is an electronic visual display fro or a display is an electronic visual display fro computers. There are three types of monitor namely:computers. There are three types of monitor namely:

CRT( Cathode Ray Tube )

LCD( Liquid Crystal

Display)

LED( Light Emitting Diode )

System UnitSystem UnitA system unit is the main body of A system unit is the main body of a computer consisting of a plastic a computer consisting of a plastic or metal enclosure, the or metal enclosure, the motherboard and the internal disk motherboard and the internal disk drive, a power supply, cooling fans drive, a power supply, cooling fans and whatever circuit boards and whatever circuit boards plugged into the motherboard plugged into the motherboard such as video card. It is a box-like such as video card. It is a box-like case that contains computer’s case that contains computer’s electronic components.electronic components.

KeyboardKeyboard

A keyboard is a human interface device which is A keyboard is a human interface device which is represented as layout of buttons. Most keyboards have a represented as layout of buttons. Most keyboards have a very similar layout. The layout of these keys is derived very similar layout. The layout of these keys is derived from the original layout of keys on a typewriter. The from the original layout of keys on a typewriter. The most widely used layout in the English language is called most widely used layout in the English language is called QWERTY, named after the sequence of the first 6 letters QWERTY, named after the sequence of the first 6 letters from the top left.from the top left.

Parts Of A KeyboardParts Of A Keyboard

Character KeysCharacter Keys

- these are the keys that represents the letters in the - these are the keys that represents the letters in the alphabet A to Z.alphabet A to Z.

Modifier KeysModifier Keys

- these keys includes the Control and Shift Keys which - these keys includes the Control and Shift Keys which modifies and/or changes the appearance or case of the modifies and/or changes the appearance or case of the text.text.

Parts Of A KeyboardParts Of A Keyboard

Enter and Editing KeysEnter and Editing Keys

- these keys - these keys includesincludes the the Enter, Delete and Insert keysEnter, Delete and Insert keys which will which will edit the content of the document.edit the content of the document.

System and GUI KeysSystem and GUI Keys

- these keys includes the - these keys includes the Windows and Apple KeysWindows and Apple Keys which will which will redirect the user into the Start button.redirect the user into the Start button.

Parts Of A KeyboardParts Of A Keyboard

Navigation KeysNavigation Keys

- these keys includes the - these keys includes the arrow keys (up, down, left, right) arrow keys (up, down, left, right) and Tab keyand Tab key. .

This will allow the user to navigate within the document.This will allow the user to navigate within the document.

Parts Of A KeyboardParts Of A Keyboard

Navigation KeysNavigation Keys

- these keys includes the - these keys includes the arrow keys (up, down, left, right) arrow keys (up, down, left, right) and Tab keyand Tab key. This will allow the user to navigate within the . This will allow the user to navigate within the document.document.

Function KeysFunction Keys

- these keys includes the - these keys includes the F1 to F12 keys F1 to F12 keys which will perform a very which will perform a very special task within a particular software application.special task within a particular software application.

Parts Of A KeyboardParts Of A Keyboard

Numeric KeypadNumeric Keypad

- these keys are located on the right side of the keyboard - these keys are located on the right side of the keyboard representing the digits representing the digits 0 to 9 and the basic arithmetic operators0 to 9 and the basic arithmetic operators. . Its main purpose is for calculation.Its main purpose is for calculation.

Parts Of A KeyboardParts Of A Keyboard

Lock KeysLock Keys

- this keys include the - this keys include the Caps Lock, Num Lock and Scroll Lock Caps Lock, Num Lock and Scroll Lock keyskeys. Using Caps Lock will capitalize all the character keys. . Using Caps Lock will capitalize all the character keys.

Using Num Lock will enable and disables the user to use the Using Num Lock will enable and disables the user to use the numeric keypad. Using the scroll lock enables and disables numeric keypad. Using the scroll lock enables and disables the user to use the navigation keys in navigating the the user to use the navigation keys in navigating the document.document.

MouseMouse

A A mousemouse is a pointing device that allows the user to is a pointing device that allows the user to input spatial data to a computer.input spatial data to a computer.

PrinterPrinter

A A printerprinter is a peripheral which makes a persistent is a peripheral which makes a persistent human-readable representation of graphics or text on human-readable representation of graphics or text on paper or similar physical media.paper or similar physical media.

SpeakersSpeakers

Computer Speakers Computer Speakers or multimedia or multimedia speakers are speakers speakers are speakers external to a external to a computer that computer that disable the lower disable the lower fidelity built-in fidelity built-in speaker. speaker.

WebcamWebcam

A A webcamwebcam is a video is a video input device used to input device used to digitize images or video digitize images or video from the outside world from the outside world into the computer.into the computer.

ScannerScannerA A scannerscanner is a is a device that device that captures images captures images from from photographic photographic prints, posters, prints, posters, magazine pages, magazine pages, and similar and similar sources for sources for computer editing computer editing and display. and display.