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bar code
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Bar Code
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Pattern of bars and spaces that can be read by a computer. Bar codes are widely used in retailing, industrial distribution, and libraries. The code is read by a scanning device; the computer determines the code from the widths of the bars and spaces.
The technique was patented in 1949 but became popular only in 1973, when the food industry in North America adopted the Universal Product Code system.
© Research Machines plc 2008. All rights reserved. Helicon Publishing is a division of Research Machines plc.
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digital camera
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document reader
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interactive whiteboard
joystick
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redundancy (computing)
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sequential file
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touch screen
trackball
turnaround document
TWAIN
validation
back-up system
bar code
batch file
batch processing
concept keyboard
data
data capture
data compression
data logging
data preparation
data processing
data protection
data security
digital camera
digital recording
digitizer
document reader
function key
graphics tablet
input device
input form
interactive whiteboard
joystick
keyboard (computing)
light pen
magnetic strip
magnetic-ink character recognition
mark sensing
microphone
mouse (computing)
optical character recognition
optical mark recognition
point-of-sale terminal
punched card
query
questionnaire
QWERTY
real-time system
redundancy (computing)
run-time system
scanner (computing)
sensor
sequential file
smart card
speech recognition
survey (statistics)
touch screen
trackball
turnaround document
TWAIN
validation
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