Computer Applications

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system unit

a box like case that contains electric components of a computer that are used to process data

network

a collection of computers and devices connected together via communications devices and transmissions media

web site

a collection of related web pages

data

a collection of unprocessed items, which can include text, numbers, images, audio, and video

storage media

a computer keeps data, instructions, and information on storage media.

handheld computers

a computer small enough to fit in one hand while you operate it with the other hand

personal computer

a computer that can perform all of its input, processing, output, and storage activities by itself

communications device

a hardware component that enables a computer to send and receive data, instructions, and information to and from one or more computers

mainframe

a large, expensive, very powerful computer that can handle hundreds or thousands of connected users simultaneously

laptop computer or notebook computer

a portable, personal computer small enough to to fit on your lap

program or software

a series of instructions that tell the computer what to do and how to do it

operating system

a set of programs that coordinate all activities among computer hardware device

smart phone

a web enabled phone

telecommuting

a work arrangement in which employees work away from a company's standard workplace and often communicate with the office through the computer

internet

a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals

utility program

allows a user to perform maintenance type tasks usually related to managing a computer, its devices, or its programs

computer

an electronic device, operating under the control of instructions stored in its own memory that can accept data, manipulate, the data according to specific rules, produce results, and store the results for future use

input devices

any hardware component that allows you to enter data or instructions into a computer

output devices

any hardware component that conveys information to 1 or more people Ex; printer, monitor, speakers

hardware

computer that contains electric, electronic, and mechanical components. it includes input devices, output devices, a system unit, storage devices, and communication devices

memory

consists of electric components that store instructions waiting to be executed and data needed by those instructions

system software

consists of programs that control or maintain the operations of the computer and its devices

application software

consists of programs that perform specific tasks for users

desktop computer

designed so the system unit, input devices, output devices, and any other devices fit entirely on or under a desk or table

large business user

each person who uses a computer in a large business

home user

family member spends time on a computer for different reasons

telemedicine

health care professionals in separate locations

small office/home office

includes any company with fewer than 50 employees, as well as the self employed who work from home

web page

it contains text graphics, audio, and video. it often has built in connections, or links, to either documents, graphics, other web pages, or websites

web-enabled

meaning they can connect to the internet wirelessly

midrange server

more powerful and larger than a desktop computer. supports several hundred and sometimes up to a few thousand connected computers at the same time

web or world wide web

one of the more popular services on the internet; contains billions of documents called web pages

mobile users

people who work on a computer while away from the main office or school. Examples: sales representatives, real estate agents, insurance agents, meter readers

execute

process of a computer carries out the instructions in a program

run

process of using software

information

processed data; that is, data that is organized, meaningful, and useful

PDA

provides personal organizer functions such as a calender, appointment book, address book, calculator, and notepad

storage device

records and or retrieves items to and from storage media

enterprise computers

refers to huge network of computers that meets their diverse computer needs

computer aided manufacturing

refers to the use of computers to assist with manufacturing processes such as fabrication and assembly

power user

requires the capability of a powerful desktop called a workstation

information processing cycle

series of input,process, output, and storage activities

programmer

someone who develops application or system software

central processing unit or processor

the electronic component that interprets and carries out the basic instructions that operate the computer

supercomputer

the fastest, most powerful computer-- and the most expensive computer

installing

the process of setting up software to work with the computer, printer, and other hardware components

graphical interface user

type of user interface that allows a user to interact with software using menus and text, graphics, and visual images

online banking

users access account balances, pay bills, and copy monthly transactions from the banks computer right into their own computers

online

when a computer connects to a network


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