80286 Microprocessor Architecture Quiz and Flashcards

Study Flashcards Play Quiz

Questions and Answers

What is the purpose of I/O interfacing in a microcomputer system?

To enable communication between the microprocessor and external devices.

Describe the role of system software in a microcomputer system.

System software manages the hardware components and provides a platform for application software to run.

What is the main functionality of a microprocessor in a microcomputer system?

To execute instructions and perform arithmetic and logic operations.

How does microprocessor architecture impact the performance of a microcomputer system?

Efficient architecture allows for faster processing and better utilization of resources. Signup and view all the answers

Explain the significance of interrupts in a microprocessor-based system.

Interrupts allow the microprocessor to handle external events or requests without delay. Signup and view all the answers

What distinguishes the Pentium and Pentium Pro microprocessors from earlier models?

Improved performance, advanced features, and better overall processing capabilities. Signup and view all the answers

What is the role of an input device in the context of a microprocessor?

Writes data from the outside world to the microprocessor. Signup and view all the answers

Define a binary number in terms of microprocessor understanding.

A binary number is called a bit. Signup and view all the answers

Explain the primary function of a microprocessor in a computer system.

Processes data based on instructions and programs stored in memory. Signup and view all the answers

List some basic arithmetic operations that every microprocessor is equipped to perform.

Addition, subtraction, increment, decrement. Signup and view all the answers

What is the purpose of memory in relation to a microprocessor?

Memory stores instructions and programs for the microprocessor. Signup and view all the answers

Explain how output devices are related to the functioning of a microprocessor.

Receive processed results from the microprocessor. Signup and view all the answers

What are the three sub components of a typical microprocessor?

Arithmetic and Logic Unit (ALU), Control Unit, Register Array Signup and view all the answers

What type of operations does the ALU in a microprocessor perform?

Arithmetic and Logical operations such as Addition, Subtraction, AND, OR, XOR Signup and view all the answers

How are the results of operations usually stored in a microprocessor?

In the accumulator or memory Signup and view all the answers

What types of registers are present in an 8085 microprocessor?

Six general purpose registers, one accumulator, one flag register, two 16-bit registers (stack pointer and program counter) Signup and view all the answers

What does the Control Unit in a microprocessor provide?

Timing and control signals Signup and view all the answers

What is the function of Read Only Memory (ROM) in a microprocessor system?

Stores information that does not change Signup and view all the answers

Study Notes

Microprocessor Architecture and Microcomputer Systems

A microprocessor is the central processing unit of a computer system that processes a distinct set of instructions and programs.
It is made up of tiny components like diodes, transistors, and registers that work together.
A microprocessor is a programmable device that takes in data, performs arithmetic or logical operations, and produces processed results based on instructions and programs stored in memory.

Microprocessor Components

Arithmetic and Logic Unit (ALU): performs arithmetic and logical operations like addition, subtraction, AND, OR, XOR, etc.
Register Array: includes six general-purpose registers, one accumulator, and one flag register in the 8085 microprocessor.
Control Unit: provides timing and control signals to the microprocessor to perform operations like read and write from memory and peripherals.

Memory

Stores information in binary format.
There are two types of memory:
- Read Only Memory (ROM): a nonvolatile memory that stores information that does not change.
- (No mention of a second type of memory, but it can be inferred that there is another type)