FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -In computing, an opcode (abbreviated from operation code, also known as instruction machine code, instruction code, instruction syllable, instruction parcel or opstring) is the portion of a machine language instruction that specifies the operation to be performed.

Detailed explanation-2: -0000 is the operation code for ‘Load’ and 0000 0000 0100 is the address. This picture shows the Virtual Machine after fetching and decoding the instruction at memory location 0. There is one Assembly Language OP (operation) for every opcode (instruction type) in the computer’s vocabulary.

Detailed explanation-3: -An opcode is a single instruction that can be executed by the CPU. In machine language it is a binary or hexadecimal value such as ‘B6’ loaded into the instruction register.