High level code and machine code

Question	Answer
What is machine code?	The only language that the CPU of a computer understands
What are the instructions - opcodes and operands - represented by?	Strings of bits 1 and 0 digits
Does every processor type have its own unique instruction set?	Yes
Is it difficult for humans to learn strings of bits?	Yes
Is writing, testing and debugging fast or slow?	Very slow
What is used in assembly language to represent opcodes?	Mneumonics
Why is assembly language called a low-level language?	The instructions are similar to those used in machine code There is a one-to-one relationship
What are high-level languages similar to?	Human languages
Why are high-level languages better to use?	Quicker to write, test and debug programs
Why are translators used?	To translate the instructions the language used into machine code for the CPU it will be running on
What does an assembler do?	Translates code written in assembly language into machine code
What are the two ways of translating high-level languages into machine code?	Compiler - translates all of the high-level code into a complete machine code program, which is output as a new file and can be saved Interpreter - translates the high-level code one instruction at a time at runtime

Resource summary

	Created by Anisha Rai over 8 years ago