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(n) a big improvement or new way of doing something
innovation
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(adj) able to be carried conveniently
portable
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(adj) relating to the present time
current
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(n) a fitting in electronics that controls the flow of electrons
valve
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(v) to cause or result in
lead to
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(n) a mechanical device that was used for simple sums before the invention of the calculator
adding machine
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(adj) using mechanical processes rather than digital
analogue
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(adj) kept at a certain level
fixed
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(adj) occurring or seen often
common
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(v) to make a coded message readable
decrypt
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(v) to come to an answer by considering details
work out
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(adj) of central importance
core
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(adj) related to large businesses; designed to make a profit
commercial
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(n) an early alternative to a transistor, made by removing all gas from a glass tube
vacuum tube
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(adj) having more than one use
multi-purpose
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(n) a sum where a number is broken into smaller parts
division
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(n) an improvement or step forward
advance
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(adj) having to do with a country's army and defences
military
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(n) the practice of buying and selling online
e-commerce
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(v) to look at something closely in order to understand it
analyze
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(n) part of a circuit that either acts as a switch or amplified electrical signal
transistor
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(n) the action of understanding external things
information processing
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(adj) very important; vital
essential
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(v) to put information in a form that computers can read; (n) the form of language that computers use to work
code
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(adj) able to change
flexible
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(adj) no longer needed or used
obsolete
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