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What is a Register? Name any three of its types.
Register
A register is a very small amount of fast memory that is built into the CPU in order to speed up its operations by providing quick access to commonly used values. Registers refer to semiconductor devices whose contents can be accessed at extremely high speeds but which are held there only temporarily.
Three types of Register
- Program Counter (PC)
- Memory Address Register (MAR)
- Instruction Register (IR)