10 Questions
What is the role of the processor in a computer architecture?
The processor controls fetching and execution of instructions and moves data between memory, registers, the arithmetic/logic unit, and I/O devices.
What is the role of memory in a computer architecture?
Memory stores instructions and data.
What is the role of I/O devices in a computer architecture?
I/O devices bring data into the system and send data out from the system.
What is a signal in the context of computer architecture?
A signal is a logical value represented as a voltage on a wire inside the machine, with binary values of on (1) and off (0).
What is a bus in the context of computer architecture?
A bus is a group of signals with a specific purpose.
What is the function of the Control Bus in a computer architecture?
The Control Bus is responsible for controlling the fetching and execution of instructions, as well as moving data between memory, registers, the arithmetic/logic unit (ALU), and I/O devices.
What is the purpose of the Address Bus in a computer architecture?
The Address Bus is used to specify the memory location or I/O device that needs to be accessed.
What is the role of the Data Bus in a computer architecture?
The Data Bus is responsible for transferring data between the processor, memory, and I/O devices.
What is the significance of the M/IO# signal in a computer architecture?
The M/IO# signal is used to determine whether the system should access memory (M/IO# = 1) or an I/O device (M/IO# = 0).
Define a bus in the context of computer architecture.
A bus is a group of signals that serve a specific purpose, such as transferring data or controlling the flow of information within a computer system.
Study Notes
General Computer Architecture
- The processor controls the fetching and execution of instructions and moves data between memory, registers, the arithmetic/logic unit (ALU), and I/O devices.
- Memory stores instructions and data.
- I/O devices bring data into the system and send data out from the system.
Control Bus and Signals
- A signal is a logical value represented as a voltage on a wire inside the machine, and is binary (on = 1, off = 0).
- Each signal value has a specific function assigned to it, e.g., the memory or I/O select (M/IO#) signal.
- M/IO# = 1 means access memory, while M/IO# = 0 means access an I/O device.
- A bus is a group of signals with one purpose.
System Architecture
- The processor is connected to the control bus, which includes the arithmetic logic unit (ALU), and C-Bus (M/IO#, W/R#, and D/C# signals).
- The 32-bit address bus connects the processor to memory.
- The 32-bit data bus connects the processor to memory and I/O devices.
- Registers are part of the processor.
Test your knowledge on selecting Intel registers in assembly language with this quiz. Learn about the role of registers in computer architecture and their interaction with memory, ALU, and I/O devices. Challenge yourself with questions based on the reading material from "Professional Assembly Language" (pp 17-32, 34-37) and additional information from the provided link.
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