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Intro to Computers


An electronic device, operating under the control of instructions stored in its own memory, that can accept data (input), process the data according to specified rules (process), produce results (output), and store the results (storage) for future use. Computer
Four basic operations, (input, process, output, and storage) that collectively process data and information and store it for future use. Information Processing Cycle
A collection of unprocessed items, which can include text, numbers, images, audio, and video. Data
Conveys meaning and is useful to people. Information
Consists of a series of related instructions, organized for a common purpose, that tells the computer what tasks to perform and how to perform them. Program/Software
People who use the computer directly or use the information it provides. Computer User/End User/User
Involves reducing the electricity consumed and environmental waste generated when using a computer. Green Computing
A case that contains electronic components of the computer used to process data. System Unit
A device that connects to the system unit and is controlled by the processor in the computer. Peripheral
A computer that can perform all of its input, processing, output, and storage activities by itself. Personal Computer
A personal computer you can carry from place to place. Mobile Computer
A portable, personal computer often designed to fit on your lap. Notebook Computer/Laptop Computer
A special type of notebook computer that allows you to write or draw on the screen using a digital pen. Tablet PC
A phone that can connect to the Internet and usually also provides personal information management functions such as a calender, an appointment book, an address book, a calculator, and a notepad. Smartphone
A mobile device on which you can store, organize, and play digital media. Portable Media Player
A device that allows users to take pictures and store the photographed images digitally, instead of on traditional film. Digital Camera
Any hardware component that allows you to enter data and instructions into a computer. Input Devices
An input device that contains keys users press to enter data and instructions into the computer. Keyboards
A pointing device that pits comfortably under the palm of your hand. Mouse
A small symbol on the screes whose location and shape change as a user moves a pointed device. Pointer
A button, a menu, an icon, a link, or text. Object
A small, flat, rectangular pointing device near the keyboard that allows you to move the pointer by sliding a fingertip on the surface of the pad. Touch pad
The main circuit board of the system unit. Motherboard
Hardware components that convey information to one or more people. Output Devices
Interprets and carries out the basic instructions that operate a computer. Processor/Central Processing Unit (CPU)
Directs and coordinates most of the operations in the computer. Control Unit
Consists of electronic components that store instructions waiting to be executed and data needed by those instructions. Memory or RAM
KB; Equals exactly 1,024 bytes. Kilobyte
MB; Equals approximately one million bytes. Megabyte
GB; Equals approximately one billion bytes. Gigabyte
TB; Equals approximately one trillion bytes. Terabyte
An output device that produces text and graphics on a physical medium such as a paper. Printers
Uses liquid crystal display to produce images on the screen. LCD Monitor
Individual picture elements. Pixels
The number of horizontal and vertical pixels in a display device. Resolution
The computer hardware that records and/or retrieves item to and from storage media. Storage Devices
A narrow recording band that forms a full circle on the surface of the disk. Track
A pie-shaped section, of the disk's storage location, which break the tracks into small arcs. Sectors
A storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information. Hard Disk
Compact disc read-only memory, is a type of optical disc that users can read but not write (record) or erase. CD-ROM
(Compact disc-recordable) A multisession optical disc on which users can write, but not erase, their own items such as text, graphics, and audio. CD-R
(Compact disc-rewritable) An erasable multisession disc that you can write on multiple times. CD-RW
(Digital versatile disk-read-only memory or digital video disk-read-only memory) A high capacity optical disc on which users can read but not write or erase. DVD-ROM
A removable flash memory device, usually no bigger than 1.5 inches in height or width, that you insert and remove from a slot in a computer, mobile device, or card reader/writer. Memory Card
An Internet service that provides hard disk storage to computer users. Cloud Storage
A hardware component that enables a computer to send (transmit) and receive data, instructions, and information to and from one or more computers or mobile devices. Communication Devices
Cables, telephone lines, cellular radio networks, and satellites. Transmission Media
Allows users to interact with software using text, graphics, and visual images such as icons. Graphical User Interface (GUI)
The process of adding software to a computer. Installing
Created by: 604920250