Question 1773 – Nielit Scientific Assistance IT 15-10-2017

In computing, an opcode (abbreviated from operation code, also known as instruction syllable, instruction parcel or opstring) is the portion of a machine language instruction that specifies the
operation to be performed. Beside the opcode itself, most instructions also specify the data they will process, in the form of operands. In addition to opcodes used in the instruction set
architectures of various CPUs, which are hardware devices, they can also be used in abstract computing machines as part of their byte code specifications.
Note: Instruction opcode not in a form of main memory.