Etymology
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malware (n.)

"software intended to damage or disable computers and computer systems," 1997, from mal- + -ware, from software, etc.

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microprocessor (n.)

"miniaturized processor capable of serving as the central processing unit of a computer," by 1970, from micro- + processor.

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login (n.)
in the computer sense, as one word, by 1983, from the verbal phrase; see log in.
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gunnery (n.)
c. 1600, "science of gun-making," from gun + -ery. Meaning "science of firing guns" is from 1816.
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bitmap (n.)
1973, in computer jargon, from bit (n.2) + map. Literally, a map of bits.
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pixilation (n.)

"creation of the effect of animation in live actors," 1947, from pixilated. For the computer image effect, see pixelation.

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CD-ROM 
1983, in computer jargon; also cd-rom; from compact disc read-only memory.
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log (v.2)
"to enter into a log-book," 1823, from log (n.2). Meaning "to attain (a speed) as noted in a log" is recorded by 1883. Meaning "to log in to a computer" is from 1963; it also sometimes is used to mean "log off" of a computer or program. Related: Logged; logging (n.2).
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preprogram (v.)

also pre-program, "program (a computer, etc.) beforehand," 1955, from pre- "before" + program (v.). Related: Preprogrammed; preprogramming.

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logon 
in computer sense, as one word, by 1975, from log (v.2) + on (adv.).
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