Chapter 1 | Welcome Aboard¶
- Two Major themes : Abstraction and Hardware vs. Software
- A computer System
- Level of transformation
Abstraction¶
working in a high level of abstraction is a good thing. If something goes wrong, you can fix it.
Hardware vs. Software¶
Computer System¶
- CPU
- MEM storage / memory
- I / O INPUT / OUTUT
- Input
- Keyboard'
- Output
- Monitor
LC -3 / Little Computer No.3¶
LC - 1 and LC - 2 are not good enough.
The Level of Transformation¶
| Software | Problems in Natual Language |
|---|---|
| Algorithm | |
| Program | |
| Interface | Instruction Set Architecture (ISA) |
| Hardware | Microarchitecture |
| Logic circuits | |
| Electronic circuits | |
| Electrons |
Algorithm
step by step procedures
Thress properties
- definiteness: No ambiguity
- effectively computable
- finite
Program
- Programming language
- Program to ISA : Compiler
- Assembly language
- Assembly to ISA : Assembler
ISA
- where microprocessor has
- compatibility
- Intel / AMD x86
- 8086
- 286
- 386
- 486
- Pentium
- Pentium Pro
- Pentium M
- IBM Power-PC
- SPARC
- Z-series
Microarchitecture
- Tradeoffs
最后更新:
2024.02.21 00:56:50 CST
创建日期: 2024.02.21 00:56:50 CST
创建日期: 2024.02.21 00:56:50 CST