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Components in the CPU
Arithmetic Logic Unit (ALU)
Performs all basic arithmetic and logical operations
Control Unit (CU)
Memory Address Register (MAR)
Memory Data Register (MDR)
Address Bus
Data Bus
Two types of primary memory
Random Access Memory (RAM) and Read Only Memory (ROM)
Random Access Memory (RAM)
Read Only Memory (ROM)
Cache
Components of the machine instruction cycle
Fetch, decode, execute
Fetch
Decode
Execute
Store
Secondary memory
Operating system
Set of software that controls computer’s hardware resources and provide services for programs
Roles of an operating system
Benefits / execution of memory management
How colour can be represented in a computer