Principles of Computer (gradually update ...)
- Computer Architecture and Computer Organization
- Computer Architecture: Properties programmer saw computer system, the conceptual structure and functional properties (presence or absence of multiply instruction)
- Computer Organization: computer architecture embodied implemented properties (how to multiply instruction)
- Von Neumann computer systems and features
- Five components of computer arithmetic unit, a memory, a controller, input devices, output devices
- Instructions and data stored in the memory in the same position, according to the address search
- Military instructions and data binary representation
- Specified by the operation code and address code consisting of
- Instruction sequence stored in the memory
- In the center operator
- Hardware features
- Arithmetic unit (ALU): arithmetic operations, logic operations
- Memory: store data and programs
- Input device: the machine identification information into the form of
- Output Device: the results into the familiar form
- Run command program: Controller (CU)
- MAR: address register, the address information is stored, reflecting the number of memory cells
- MDR: the temporary data to be processed, reflecting the storage word
- Controller basic components
- Instruction fetch: PC (storage address of the current instruction to be executed, with a counter PC + 1 = PC)
- Analysis command: IR (current store instruction to be executed)
- Executing instructions CU
- Technical Specifications
- Machine word: CPU processing data bits, the number of digits for the CPU registers
- Frequency: CPU clock frequency
- Main memory capacity for running the program :()
- The storage unit stores the number of word length × MAR: 10 × MDR: 8 = 1K × 8 bit
- The number of bytes of the 13 th = 1KB 2
- RAM: main memory, zero run data storage medium.
- ROM: Mobile Brush mirror