RISC I

E339011

RISC I is an early experimental reduced instruction set computer (RISC) processor design developed at UC Berkeley that helped pioneer and popularize the RISC architecture approach.

All labels observed (2)

Label Occurrences
RISC I canonical 3
RISC I microprocessor 1

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf RISC processor design
experimental processor
microprocessor architecture
academicAdvisor David A. Patterson
academicInstitution University of California, Berkeley
architectureFamily RISC architecture
surface form: RISC
basedOn reduced instruction set computing principles
category Berkeley RISC projects
surface form: Berkeley RISC project processors

RISC microprocessors
experimental microprocessors
clockFrequency about 1 MHz
countryOfOrigin United States of America
surface form: United States
demonstrated that simpler instruction sets can yield higher performance
designedFor performance evaluation of RISC concepts
research
developer Department of Electrical Engineering and Computer Sciences, UC Berkeley
surface form: UC Berkeley Computer Science Division

University of California, Berkeley
dieSize approximately 77 mm^2
fabricationTechnology NMOS
field computer architecture
microprocessor design
impact popularized RISC design in academia and industry
inception 1981
early 1980s
influenced MIPS
surface form: MIPS architecture

RISC II
SPARC microprocessor architecture
surface form: SPARC architecture

later commercial RISC processors
influencedBy IBM 801
earlier CPU performance studies
instructionEncoding fixed-length
instructionSetType load-store
notableFor helping pioneer RISC architecture approach
large register file
load-store architecture
pipeline-friendly design
simple fixed-length instruction set
numberOfRegisters 32
pipeline simple instruction pipeline
platform VLSI implementation
projectLeader David A. Patterson
publication RISC architecture
surface form: “The Case for the Reduced Instruction Set Computer”
publicationYear 1980
registerWidth 32-bit
researchGroup Berkeley RISC projects
surface form: Berkeley RISC project
successor RISC II
transistorCount approximately 44,000 transistors

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

SPARC microprocessor architecture influencedBy RISC I
subject surface form: SPARC
Berkeley RISC projects notableWork RISC I
this entity surface form: RISC I microprocessor
RISC II basedOn RISC I