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TECH in Action

Information technology
field of study focused on managing and processing information and the automatic retrieval of information.
data mining
process of searching huge amounts of date with the hope of finding a pattern.
Bluetooth technology
a type of wireless communication
computer forensics
specialty law enforcement that analyzes computer systems with specific techniques to gather potential legal evidence.
Radio frequency identification tags
tags containing minuscule microchips that transmit information via radio waves and can be used to track the number and location of the objects into which the tags have been inserted
patient simulator
life-sized, computer-controlled mannequins that can speak, breath, and blink.
public domain
property rights that belong to the community at large, are unprotected by copyright or patent, and are subject to use by anyone
Nanoscience
study of molecules and structures that range in size from 1 to 100 nanometers.
Nanotechnology
science of using nanostructures to build devices on an extremely small scale.
Affective computing
computin that relates to emotion or deliberately tries to influence emotion.
hardware
the mechanical, magnetic, electronic, and electrical components making up a computer system
data
representation of a fact, figure, or idea
Information
data that has been organized or presented in a meaningful fashion
processing
calculating or organizing data into information
binary language
the language computers use to process data into information, consisting of only the values 0 and 1.
byte
a sequence of 8 bits (enough to represent one character of alphanumeric data) processed as a single unit of information
kilobyte
1,000 Bytes
megabyte
1 million bytes
gigabyte
one billion bytes
terabyte
1 trillion bytes
application software
set of programs you use on a comuter to help you carry out tasks such as writing a research paper.
system software
set of programs that enables your computer’s hardware devices and application software to work together.
operating system
programs that control the way in which your computer system functions
peripheral device
component such as a monitor or keyboard that is connected to the computer.
mainframe
large, expensive computer that supports hundreds of users simultaneously.
supercomputer
specially designed cimputer that can perform complex calculations extreemly rapidly.
embedded computer
specially designed computer chip that resides in another device.
optical mouse
uses internal sensors or lasers to detect the mouse’s movement
trackball mouse
rollerball on top or on the side of the mouse allowing the mouse to remain stationary.
output device
enables you to send processed data out of your computer in the form of text, pictures, sounds, or video.
pixel
a single point in a graphic image on a digital display; the smallest unit a monitor can display
nonimpact printer
sprays ink or uses laser beams to transfer marks onto the paper.
plotter
oversize pictures that require the drawing of precise and continuous lines such as maps and detailed images.
motherboard
main circuit board that contains the central electronic componentsof the computer, including the computer’s processor, memory and many circuit boards.
system unit
metal or plastic case that also houses the power source and all the storage devices
expansion cards
circuit boards that provide additional functionality
sound card
provides a connection for the speakers and microphone
modem card
provides the computer with a connection to the internet via a traditional phone line
RAM
the most common computer memory which can be used by programs to perform necessary tasks while the computer is on

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