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A computer instruction describes an operation such as add or multiply X, while the operand (or operands, as there can be more than one) specify on which X to operate as well as the value of X. Additionally, in assembly language, an operand is a value (an argument) on which the instruction, named by mnemonic, operates.
In computer programming, an operator is a programming language construct that provides functionality that may not be possible to define as a user-defined function (i.e. sizeof in C) or has syntax different than a function (i.e. infix addition as in a+b).
Operands are objects upon which the operators operate. These include literal numbers and other constants as well as identifiers (names) which may represent anything from simple scalar variables to complex aggregated structures and objects, depending on the complexity and capability of the language at hand as well as usage context.
WS-D—Web Services-Discovery; WSDL—Web Services Description Language; WSFL—Web Services Flow Language; WUSB—Wireless Universal Serial Bus; WWAN—Wireless Wide Area Network; WWID—World Wide Identifier; WWN—World Wide Name; WWW—World Wide Web; WYSIWYG—What You See Is What You Get; WZC—Wireless Zero Configuration
A computer which may be used to provide services to clients. software Any computer program or other kind of information that can be read and/or written by a computer. single in-line memory module (SIMM) A type of memory module containing random-access memory used in computers from the early 1980s to the late 1990s. Contrast DIMM. solid-state drive
In computer science, an instruction set architecture (ISA) is an abstract model that generally defines how software controls the CPU in a computer or a family of computers. [1] A device or program that executes instructions described by that ISA, such as a central processing unit (CPU), is called an implementation of that ISA.
Single instruction, multiple data. Single instruction, multiple data (SIMD) is a type of parallel processing in Flynn's taxonomy.SIMD can be internal (part of the hardware design) and it can be directly accessible through an instruction set architecture (ISA), but it should not be confused with an ISA.
For instance, the MOS 6502 has eight variations of the addition instruction, ADC, which differ only in where they look to find the two operands. [ 5 ] Using the variation of the instruction, or " opcode ", that most closely matches the ultimate operation can reduce the number of instructions to one, saving memory used by the program code and ...