a personal digital assistance is a small computer, about the size of a hand, so sometimes called a palmtop
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Stylus
a small stick used to select or draw on a touch screen
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Radio frequency ID (RFID)
a way of tracking objects by attaching a transmitter that sends a signal giving the serial number and its location
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Optical mark recognition (OMR)
semses the position of marks on data capture forms such as multiple choice exam papers or lottery entry sheets
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Optical character recognition (OCR)
uses a scanner and specialist software to turn paper-based text into computer characters
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Electronic point of sale (EPOS)
uses bar codes to enter product numbers at shop tills that are linked to stock databases
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Magnetic ink character recognition (MICR)
uses magnetic ink to print characters shaped to ANSI standards which can be read and used to direct cheques and other negotiable documents to their proper financial institutions
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Sampling
a way of recording sound digitally so that it can be input into a computer
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Sample rate
number of times per second a sound reading is taken
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Video conferencing
captures and transmits sound and video to allow people in different locations to see and talk to each other
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Pixel
a single dot of an image, usually rectangular or square. 1 Megapixel (Mp) is 1 million pixels
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Bluetooth
a brand name; it is a method of transmitting data over short distances wirelessly
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Other cards in this set
Card 2
Front
a small stick used to select or draw on a touch screen
Back
Stylus
Card 3
Front
a way of tracking objects by attaching a transmitter that sends a signal giving the serial number and its location
Back
Card 4
Front
semses the position of marks on data capture forms such as multiple choice exam papers or lottery entry sheets
Back
Card 5
Front
uses a scanner and specialist software to turn paper-based text into computer characters
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