First of all, let's look at the relationship between the four professional courses of computer
"Operating System" is the interface between computer hardware and software. "Data Structure" mainly talks about software issues from the perspective of programmers, "Composition Principles" talks about computer hardware issues, and "Computer Networks" talks about the computer The question of how to interconnect. Let’s take a look at what hardware knowledge is mentioned in the "Principle of Composition"
Data representation and operation
This chapter introduces numerical value and coding , arithmetic unit, and the representation and operation of fixed-point and floating-point numbers
Storage System
The chapter on storage system is very important. It introduces the memory hierarchy, semiconductor random access memory and the connection between main memory and CPU, dual-port RAM and multi-module memory, high-speed buffer memory and virtual memory.
Command system
Introduced the instruction format and various addressing methods, and finally compared CISC and RISC
CPU
The focus is on the realization of the instruction pipeline and the realization of the microcontroller and hard-wired controller
bus
Introduced the bus president, operation and timing, and bus standards. It may be that this piece of knowledge is relatively old, and it is not too important in postgraduate entrance examinations and interviews.
I
The content of this piece overlaps with the operating system a bit. The focus is on the io interface and 4 interrupt methods.
