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computer literacy
Having a current knowledge and understanding of computers and their uses. See also digital literacy.
computer
Electronic device, operating under the control of instructions stored in its own memory, that can accept data, process the data according to specified rules, produce results, and store the results for future use
data
Collection of unprocessed items, which can include text, numbers, images, audio, and video.
information
Processed data that conveys meaning and is useful to people.
hardware
Electric, electronic, and mechanical components contained in a computer.
input device
Any hardware component that allows users to enter data and instructions into a computer.
output device
Any hardware component that allows users to enter data and instructions into a computer.
storage device
Hardware used to record (write and/or read) items to and from storage media.
system unit
Case that contains the electronic components of a computer that are used to process data.
processor
Electronic component on a computer's motherboard that interprets and carries out the basic instructions that operate the computer. Also called CPU or central processing unit. See also central processing unit
memory
Electronic components in a computer that store instructions waiting to be executed and data needed by those instructions.
application software
Program designed to make users more productive and/or assist them with personal tasks.
system software
Programs that control or maintain the operations of a computer and its devices.
personal computer
Computer that can perform all of its input, processing, output, and storage activities by itself and contains a processor, memory, and one or more input and output devices, and storage devices.
mobile computer
Personal computer that a user can carry from place to place.
tablet PC
Special type of notebook computer that resembles a letter-sized slate, which allows a user to write on the screen using a digital pen.
digital pen
Input device that allows users to write or draw on the screen by pressing the pen and issue instructions to a Tablet PC by tapping on the screen.
game console
Mobile computing device designed for single-player or multiplayer video games.
server
Computer that controls access to the hardware, software, and other resources on a network and provides a centralized storage area for programs, data, and information.
mainframe computer
Large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously, storing tremendous amounts of data, instructions, and information.
supercomputer
Fastest, most powerful, and most expensive computer, capable of processing more than 135 trillion instructions in a single second.
hard disk
type of storage device that contains one or more inflexible, circular platters that store data, information, and instructions.
flash memory
type of nonvolatile memory that can be erased.
flash memory card
removable memory device, usually no bigger than 1.5" in height or width.
motherboard
main circuit board of the system unit, has some components attached to it and others built into it.
modem
a communications device that converts a computers digital signals to analog signals
Ms. K. Larson
Director of Computer Science
Effingham College & Career Academy
Rincon, GA
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