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Digital Electronics - Microprocessor Fundamentals


Exercise

"Success has many fathers, while failure is an orphan."
- (Proverb)
1. 

The devices that provide the means for a computer to communicate with the user or other computers are referred to as:

A. CPU
B. ALU
C. I/O
D. none of the above

2. 

The software used to drive microprocessor-based systems is called:

A. assembly language
B. firmware
C. machine language code
D. BASIC interpreter instructions

3. 

The circuits in the 8085A that provide the arithmetic and logic functions are called the:

A. CPU
B. ALU
C. I/O
D. none of the above

4. 

How many buses are connected as part of the 8085A microprocessor?

A. 2B. 3
C. 5D. 8

5. 

The ________ ensures that only one IC is active at a time to avoid a bus conflict caused by two ICs writing different data to the same bus.

A. control bus
B. control instructions
C. address decoder
D. CPU




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