Computer sicence

4. work out what an instruction means/what it is telling the CPU to do
7. collect an instruction from another location
9. expression that contains conditional operators; symbols e.g. >, < and = used to carry out comparisons between two values
11. (ACC)register that holds the results of processing carried out by the ALU
12. carry out the instructions described in a computer program
13. the part of the computer that carries out program instructions, sometimes known simply as the processor
14. completes a check to see whether set criteria is either True or False
15. any data or instructions that pass into or out of main memory must pass through the MDR
16. holds the address of the memory location being accessed,toread data from or write data to

1. combination of logic gates for solving a problem in a digital device
2. symbol e.g. >, < and = used to carry out comparisons between two values
3. (PC)stores the address of the next instruction waiting to be executed by the CPU
5. (CU)issues commands to the other hardware components to help ensure programs are carried out correctly
6. location in main memory that temporarily stores data about memory locations, instructions and data used during the execution of an instruction
8. carries out the calculations needed during the execution of a program
10. another name for RAM, which is used to store the programs and data the CPU is currently using
14. stores the address of the instruction the CPU is currently executing