【Lecture3】Computer Systems & Networks
Previous Lecture
CPU

Contents
- 1. How the CPU access the instructions on RAM
- 2. Four components of CPU
- 3. How to convert strings into its octal representations
- 4. Perform a logical AND operation on the hex value
How the CPU access the instructions on RAM
- Step 1: Fetch the instruction
- Step 2: Decode the instruction
- Step 3: Execute the instruction
Four components of CPU
- Clock: The number of cycles your CPU executes per second, measured in GHz (gigahertz).
- ALU (Arithmetic Logic Unit): コンピュータを構成する基本的な装置の一つで、算術演算(四則演算)や論理演算などの計算を行う装置。
- Registers: very fast computer memory which are used to execute programs and operations efficiently.
- CU (Control Unit): The control unit generates control signals for all parts of the processor to coordinate its operation.
How to convert strings into its octal representations
ASCII Table
Perform a logical AND operation on the hex value
