[in-struhk-shuh n] /ɪnˈstrʌk ʃən/
the act or practice of or teaching; education.
knowledge or information imparted.
an item of such knowledge or information.
Usually, instructions. orders or directions:
The instructions are on the back of the box.
the act of furnishing with authoritative directions.
Computers. a command given to a computer to carry out a particular operation.
a direction; order
the process or act of imparting knowledge; teaching; education
(computing) a part of a program consisting of a coded command to the computer to perform a specified function
c.1400, instruccioun, “action or process of teaching,” from Old French instruccion (14c.), from Latin instructionem (nominative instructio) “building, arrangement, teaching,” from past participle stem of instruere “arrange, inform, teach,” from in- “on” (see in- (2)) + struere “to pile, build” (see structure (n.)). Meaning “an authoritative direction telling someone what to do; a document giving such directions,” is early 15c. Related: Instructions.
A sequence of bits that tells a computer’s central processing unit to perform a particular operation. An instruction can also contain data to be used in the operation.
- Instruction address register
architecture (IAR) The IBM name for program counter. The IAR can be accessed by way of a supervisor call in supervisor state, but cannot be directly addressed in problem state. (1995-03-21)
[in-struhk-shuh n] /ɪnˈstrʌk ʃən/ noun 1. the act or practice of or teaching; education. 2. knowledge or information imparted. 3. an item of such knowledge or information. 4. Usually, instructions. orders or directions: The instructions are on the back of the box. 5. the act of furnishing with authoritative directions. 6. Computers. a command given […]
- Instruction mnemonic
programming A word or acronym used in assembly language to represent a binary machine instruction operation code. Different processors have different instruction sets and therefore use a different set of mnemonics to represent them. E.g. ADD, B (branch), BLT (branch if less than), SVC, MOVE, LDR (load register). (1997-02-18)
- Instruction prefetch
architecture A technique which attempts to minimise the time a processor spends waiting for instructions to be fetched from memory. Instructions following the one currently being executed are loaded into a prefetch queue when the processor’s external bus is otherwise idle. If the processor executes a branch instruction or receives an interrupt then the queue […]