10 Questions
What is the role of a microprocessor in a micro-computer?
Control other devices
Which device accepts digital data as input, processes it according to instructions stored in its memory, and provides results as output?
Microprocessor
What are the main components of a microprocessor?
ALU and register array
Which microprocessor family has a brief history mentioned in the text?
8086
What is the function of the bus interface unit in the 8086 microprocessor?
Handle data transfer between the microprocessor and external devices
What is the purpose of the Program Counter (PC) in a computer processor?
The Program Counter (PC) is used to keep track of the address of the memory location containing the next instruction to be fetched.
What are the steps involved in executing an instruction in a computer processor?
The steps involved in executing an instruction are: 1. Fetch the contents of the memory location pointed to by the PC into the Instruction Register (IR). 2. Increment the contents of the PC to point to the next instruction.
What is the function of the Instruction Register (IR) in a computer processor?
The Instruction Register (IR) holds the instruction that has been fetched from the memory location pointed to by the PC. It is used to decode and execute the instruction.
What is the role of the Processing Unit in a computer system?
The Processing Unit of a computer system is responsible for performing arithmetic and logic operations, fetching instructions from memory, storing data in memory, and executing instructions.
What are the two types of control mechanisms for a complete processor?
The two types of control mechanisms for a complete processor are hardwired control and microprogrammed control.
Study Notes
Processing Unit of a Computer System
- The processing unit fetches one instruction at a time from memory locations and performs specified operations.
- The Program Counter (PC) keeps track of the address of the memory location containing the next instruction to be fetched.
Execution of an Instruction
- Step 1: Fetch the contents of the memory location pointed to by the PC, loading the instruction into the Instruction Register (IR): IR ← [PC]
- Step 2: Increment the contents of the PC to point to the next instruction.
Registers Involved
- Program Counter (PC): keeps track of the address of the memory location containing the next instruction to be fetched.
- Instruction Register (IR): holds the instruction to be executed.
Test your knowledge on microprocessors and the x86 architecture with this quiz! Learn about the role of microprocessors in microcomputers, gain insights into the history of microprocessors (specifically the x86 family), and explore the features and internal block diagram of the 8086 processor. Get an overview of the execution unit, bus interface unit, and general architecture of a Pentium processor. Finally, dive into the world of multi-core processors.
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