A-Level OCR Computer Science study guide solved.
CPU - Answer Central Processing Unit
ALU - Answer Arithmetic Logic Unit
CU - Answer Control Unit
PC (CPU) - Answer Program Counter
ACC - Answer Accumulator
A-Level OCR Computer Science
study guide solved.
CPU - Answer Central Processing Unit
ALU - Answer Arithmetic Logic Unit
CU - Answer Control Unit
PC (CPU) - Answer Program Counter
ACC - Answer Accumulator
MAR - Answer Memory Address Register
MDR - Answer Memory Data Register
, CIR - Answer Current Instruction Register
Define CPU - Answer The main processor in a computer system
handling data and instructions.
Define ALU - Answer A circuit that performs mathematical and logical
(comparative) operations.
Define CU - Answer A component that handles data flow with 'control
signals'. It also decodes instructions in the FDE cycle.
Define PC (CPU) - Answer A REGISTER which holds the address of the
next instruction to be executed.
Define ACC - Answer A REGISTER which stores the results of calculations
processed by the ALU.
Define MAR - Answer A REGISTER which stores the address of the
memory location currently in use.
Define MDR - Answer A REGISTER which stores the instructions or data
to be executed.
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