From an implementation of computer classification and use:
From the perspective of the instruction and data stream:
1. & single instruction stream single data stream (SISD): Von Neumann Architecture
2. & single instruction stream multiple data stream (SIMD): array processor, a vector processor
3. & instruction stream multiple data stream, but (MISD): absent
4. & Multiple Instruction Multiple Data stream (MIMD): multiple processors, multiple computers
Direction of development:
Portable, powerful computing ability
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