Von Neumann model - structure diagram
Von Neumann computer operator-centric.
Von Neumann model - Features
1. Computer by the arithmetic unit, a controller, a memory, input and output devices of five components.
2. equal status data and instructions stored in memory, and can search the address.
3. The instructions and data are a binary number expressed.
4. The instruction by the operation code and address code composed of operation code to indicate the nature of the operation, the address code is used to represent address of the operand in memory.
The sequence of instructions stored in memory. Normally, instructions are executed sequentially, under certain conditions, may be changed, or the order of execution in accordance with certain conditions based on the calculation result.
6. Machine to center operator , data transfer between the memory device and input and output is done by operator.
Stored program concept
Von Neumann model requires that the program must be stored in memory, the memory cells of modern computers to store the program and its response data, which means data and programs should have the same format, because they are stored in the memory . In fact, they are stored in binary form in memory.