Flashcards
Data Representation
Cards in this deck (10)
- 1Operandtells the processor where to apply an instruction
- 2Operatortells the processor what to do in an instruction
- 3CPUCentral Processing Unit
where most calculations happen
comprised of the ALU and the CU
Arithmetic logic unit and control unit - 4Assembly codeslightly above machine code - usually mnemonics of words such as LOAD -> LDA
- 5fetch-decode-execute cycleThe processor checks the program counter to see which instruction to run next.
The program counter gives an address value in the memory of where the next instruction is.
The processor fetches the instruction value from this memory location.
Once the instruction has been fetched, it needs to be decoded and executed. For example, this could involve taking one value, putting it into the ALU, then taking a different value from a register and adding the two together.
Once this is complete, the processor goes back to the program counter to find the next instruction.
This cycle is repeated until the program ends. - 6Registryultra fast part of memory. a hierarchical database usually storing low level settings
- 7Compilerconverts source code directly in to machine readable code
- 8Interpereterconverts source code into machine readable code line by line
- 9von Neumann architecture.Computers store program instructions and data to be processed in the memory
- 10Machine languagethe code that the computer machine can read
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- Description
- 10 technical data representation terms
- Created by
- James Swire
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