For Unit-1 & Unit-2
A microprocessor is a multipurpose, programmable, clock-driven, register-based
electronic device that reads binary instructions from a storage device called memory
accepts binary data as input and processes data according to instructions, and provides
result as output.
2. Define microcomputer?
A computer that is designed using a microprocessor as its CPU. It includes
microprocessor, memory, and I/O.
3. Define ROM?
A memory that stores binary information permanently. The information can be
read from this memory but cannot be altered.
4. What is an ALU?
The group of circuits that provides timing and signals to all operation in the
computer and controls data flow.
5. Define small-scale integration?
The process of designing a few circuits on a single chip. The term refers to the
technology used to fabricate logic gates on a chip.
6. What is an instruction?
An instruction is a binary pattern entered through an input device in memory to
command the microprocessor to perform specific function.
7. What are the four primary operations of a MPU?
1. Memory read
2. Memory write
3. I/O read
4. I/O write
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