| CISC(Complex Instruction Set Computer) | RISC(Reduced Instruction Set Computer) | |
|---|---|---|
| 直観的な説明 | Implements complex processes | Limited but powerful |
| 定義 | Complex instruction set computer | Reduced instruction set computer |
| 構造 | Micro-programを内蔵 | |
| →高機能な命令が実現できる | Wired logic(Physical) | |
| →全てのinstructionをハードウェア的に実装 | ||
| Type of instruction | Complex and extensive | Simple and minimal |
| Quality of instruction | High functionality | High speed per instruction |
| Machine language implementation | Easy | Difficult |
| Add/change of instruction | Easy | Difficult |
| Speed of instruction | Slow | Fast |
| 命令による実行速度のばらつき | High | Low |