UNIT 1 Definitions

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What is a PDA?
A personal digital assistant is a small computer, about the size of a hand, often called a palmtop.
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What is a Stylus?
A small stick used to select or draw on a touch screen
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What is Radio Frequancy 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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What is OMR and what does it stand for?
Optical Mark recognition, senses the position of marks on data capture forms like multiple choice exam papers or lottery entry sheets.
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What is OCR and what does it stand for?
Optical Character recognition, uses a scanner and specialist software to turn paper based text in to computer characters.
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What is EPOS?
Electronic point of sale, that uses bar codes to enter product numbers at shop tills that are linked to stock databases.
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What is MICR and what does it stand for?
Uses magnetic ink to print characters shaped in to ANSI standards which can be read and used to direct cheques and other negotiable documents to the proper financial institutions.
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What is meant by the term Sampling?
A way of recording sound digitally so that it can be input in to a computer.
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What does the term sampling rate mean?
Number or times per second reading is taken.
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What is 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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What are Pixels?
A single dot of an image, usually rectangular or square. 1 mega-pixel is 1 million pixels.
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What is Bluetooth?
It is a brand name; it is a method of transmitting data over short distances wireless.
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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

What is a 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

Preview of the back of card 3

Card 4

Front

Optical Mark recognition, senses the position of marks on data capture forms like multiple choice exam papers or lottery entry sheets.

Back

Preview of the back of card 4

Card 5

Front

Optical Character recognition, uses a scanner and specialist software to turn paper based text in to computer characters.

Back

Preview of the back of card 5
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