Microprocessor Flashcards
What are the 5 functionally different parts of a computer
- Input
2 Memory
- Arithmetic Logic unit
- Contltrol unit
- Output
What is the generic block diagram of processor internals
What is the CPU?
Thus is the brain of the processor.
What is a Arithmetic logic unit
The alu performslogic, shift and Arithmetic operations on data
What are registers
Registers are fast stand-alone storage locations that hold data temporarily.
What are the 2 types of registers
- Data registers
- Instruction registers
What is the control unit
It controls the operarion of each subsystem
What is the internal memory
It is used for any internal computations that need to be done fast
What is a data buffer
It is a bi-directional device that holds outgoing data until the memory bus is ready for it or incoming data until the CPU is ready for it.
What is an address latch
It is a latch that maintains the address that the processor wishes to exchange data with on the memory bus
What are I/O ports
They represent the device interfaces that have been incorporated into the processor’s hardware
What are configuration registers
These registers contain the flags that represent the current configuration of the processor
3 functions of the processor
- To control the use of main storage to store data and instructions
- To control the sequence of operations
3.To give commands to all parts of the system
2 types of memory
- Primary memory
- Secondary memory
What is a primary memory
It is the one exclusively with the processor and operates at the electronics speeds
What is secondary memory
This is used where large amounts of data and programs have to be stored.
List the memory hierarchy from tol to bottom
- Register
- Cache
- Main memory
- Disk cache
- Magnetic disk
- Magnetic tape and optical desk
4.
What is a memory
A memory is a collection of storage locations
