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Operands and Opcodes

Description

Flashcards on Operands and Opcodes, created by Seb Fowkes on 14/01/2015.
Seb Fowkes
Flashcards by Seb Fowkes, updated more than 1 year ago
Seb Fowkes
Created by Seb Fowkes over 10 years ago
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Resource summary

Question Answer
Opcodes Opcodes are the basic instructions for the computer to interpret, eg. to 'walk', 'eat' or 'subtract'. This doesn't include what the variables are ( to 'chop' the 'APPLE') but does include what the instructions are.
Operands Operands are the pieces of data that are inputted into the instructions, e.g to chop (the Opcode) the onion (the operand).
Translators A translator takes high-level languages that is inputted normally within a program, and puts it into machine code which the computer can understand and process
Compilers Compilers are a type of translator that takes a human-readable program and inputs it into an executable machine-readable form that the computer can understand.
Interpreter Interpreters take unexecutable human-readable program translates into computer-readable program and executes the algorithm once translated.
Arithmetic logic unit An ALU carries makes decisions and does calculations on the data sent to the processor.
Control unit A CU, controls data moving through the processor and the timing of operations and their instructions.
Registers Registers are the internal memory that is immediately accessible, it is a small amount of fast temporary memory within the processor with the ALU and the CU operate.
Assembly Language Assembly language closely relates to how opcodes and operands work. it is faster than normal programs because it takes assembly instructions and turns it into machine code, rather than converting a high-level source code into machine code.
Mnemonics Assembly language uses abbreviations called mnemonics, the benefit of these are that they're easier for us to remember than binary.
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