software designed to meet the user's need

performs a specific task like keying a letter or document or playing a game, etc.

Examples include:  word processing, spreadsheet, database, multimedia.

Compact Disc Read Only Memory

information on this type of disc can only be read not written over or changed.

the media that carries or transports the message

(telephone wire, coaxial cable, microwave signal, or fiber optic)

a device that:

 receives, and processes data or input,

produces a result, and

allows for storage if desired.

Hardware, software, people, and data make up a computer hardware system. 

 The hardware allows people to use software to enter data and have it processed.

the Central Processing Unit of the computer that processes information or data that has been entered

also called the brain or microprocessor

new facts entered into the computer to be processed, which consists of:

 text,

numbers,

sounds, and

images.

used for storage

whether floppy or CD Read and write

a device inside the computer that holds information such as software and files

the ONLY place for storage inside the computer.

the Information Processing Cycle consisting of:

Input,

Processing,

Output, and

Storage of data

the process of entering information into a computer.

The most common input device is the keyboard.

contains numbers, letters, symbols, and function keys

 looks like a typewriter

the most common input device

the technology that enables computers to communicate the transmission of text, numeric, voice, or video from one machine to another. 

It is made up of four parts:

Sender

Receiver

Channel

Protocol.

an input device that controls the position of the cursor on the screen and to select menu items. 

To use it, you point, click, and drag.

the rules that govern the orderly transfer of data sent

Part of Data Communications

Random Access Memory that is short term and temporary

 it goes away when the power leaves the computer or you exit a program

the computer receiving the message

part of Data Communications

the computer that is sending the message

part of Data Communications

the intangible instructions that tell the computer what to do

they cannot be touched

a device used to store documents made on the computer

 can be internal or external

controls the operation of a computer

every computer must have it

an interface between the user or application program and the computer hardware

a program that protects a computer from damaging computer viruses

WAN

when local area networks are expanded to include several local area networks within a city, state, region, territory, country, continent, or world

the screen of a computer

The most frequently used output device

combines several software applications into one program

Ex.  Microsoft Office:  MSWord and MS Excel are integrated into one package.

examples are:

Accelerated Math

Accelerated Reader

Online Encyclopedia

frequently used by people who work with numbers, formulas, and data to perform calculations

Ex. teacher's gradebook or a financial budget

software that performs specialized tasks related to managing the computer's resources such as:

 formatting and copying a disk and managing files

the area around your computer while you are working

 put your copy on the right side

keep only what you need here

Avoid hot and cold locations

Avoid magnets

Make a back up copy of your files

Keep instruction manuals

Serial numbers

Support phone numbers

Trouble log

Clean hardware with appropriate cleaners regularly 

Unplug it before removing a paper jam

Dust it periodically

Keep feet flat on the floor

Sit in a comfortable, adjustable chair

Keep your fingers on the homerow

Keep your eyes on the copy from which you are keying

When things are combined together like software.

Parts of Microsoft Office are integrated--you buy Microsoft Office and get MSWord and MS Excel together.

the screen of the computer

the most frequently used output device

When software is combined--more than one program in a package.

Ex:  Buy Microsoft Office and get MSWord and MSExcel--a word processing and spreadsheet program in the same software package.

Printers that spray ink through holes in order to form an image on a paper or use a laser beam without striking or touching the paper.

Ex.  inkjet printers an laser printers

A printer that actually strikes the paper in order to form an image.

Dot matrix is one type of impact printer.

A software program that combines several programs into one software package.

Example:  Some versions of Microsoft Office include MS Word and MS Excel--a word processing and spreadsheet program in one package.

It performs specific tasks relating to managing the computer, such as formatting and copying disks.

It also manages files and folders.