Microprocessor
The operations executed by two or more control units are referred as

 Bi control-operations
 Multi-operations
 Micro-operations
 Macro-operations

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Microprocessor
When referring to instruction words, a mnemonic is

 a short abbreviation for the operand address.
 a short abbreviation for the operation to be performed.
 shorthand for machine language.
 a short abbreviation for the data word stored at the operand address.

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