RISC Microprocessors
VLSI microprocessor implementations of reduced-instruction-set computer architectures, anchored to the Berkeley RISC-I chip and later commercial RISC families.
Core metadata
- ID: risc_microprocessors
- Era: Modern
- First known date: 1981 (exact)
- Region: Berkeley, California, United States; later global RISC processor industry
- Review status: source_checked
- Maturity: established
Prerequisites
Dependents
- None.
Fields
Field lanes
- Semiconductors & Integrated Circuits: Processors & Architectures
Node sources
- First RISC (Reduced Instruction-Set Computing) Microprocessor 1980-1982 (IEEE Engineering and Technology History Wiki, 2026, review) • Supports: node, maturity
- The Case for the Reduced Instruction Set Computer (ACM SIGARCH Computer Architecture News, 1980, primary_paper) • Supports: node, maturity
- Berkeley RISC I die photograph (Computer History Museum, 2026, museum) • Supports: node, maturity
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 2
- Average edge confidence: 83%
- Prerequisite sources: 2
- review: 2
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Microprocessors (CPU on a Chip) (microprocessors_cpu_on_a_chip) | historical_predecessor | 78% | review | RISC-I was a single-chip VLSI processor in a lineage after earlier CPU-on-a-chip microprocessors; the prior microprocessor category is historical substrate, not the distinctive RISC method. |
|
| VLSI Design (vlsi_design) | required | 88% | review | The scoped first RISC microprocessor was a VLSI reduced-instruction-set processor chip fabricated through MOSIS, so VLSI design is the direct implementation prerequisite. |
|
This page is generated from canonical era JSON and is indexable by URL.