Get ahead with a $300 test prep scholarship
| Enter to win by Tuesday 9/24
CSC-264 - Chap4.8.2 - Registers and Buses
Terms in this set (12)
storage locations within the CPU
The ALU portion of the
CPU performs all the processing (arithmetic operations, logic decisions, etc).
The Registers are used for
very specific purposes when programs are executing
The register hold
values for temporary storage, data is being manipulated in some way, or results of simple calculations.
The acccumulator, holds data values. This is a general purpose register, and it holds data that the CPU needs to process.
The memory address register, holds the memory address of data being referenced.
The memory buffer register, holds either the data just read from memory or the data ready to be written to memory.
The program counter, holds the address of the next instruction to be executed in the program.
The instruction register, holds the next instruction to be executed.
The input register, holds data from the input device.
The output register, holds data for the output device.
The MAR, MBR, PC, and IR
hold very specific information and cannot be used for anything other than their stated purposes.