In computer engineering, a reduced instruction set computer (RISC) is a computer designed to simplify the individual instructions given to the computer to accomplish tasks.Compared to the instructions given to a complex instruction set computer (CISC), a RISC computer might require more instructions (more code) in order to accomplish a task because the individual instructions …

RISC OS /rɪsk.oʊˈɛs/ is a computer operating system originally designed by Acorn Computers Ltd in Cambridge, England. First released in 1987, it was designed to run on the ARM chipset, which Acorn had designed concurrently for use in its new line of Archimedes personal computers. RISC OS takes its name from the reduced instruction set computer architecture it supports. Between …

RISC-V has no save multiple or restore multiple register instructions. These were thought to make the CPU too complex, and possibly slow. This can take more code space. Designers planned to reduce code size with library routines to save and restore registers. RISC-V has no condition code register or carry bit. The designers believed that condition codes make fast CPUs more …

The RNA-induced silencing complex, or RISC, is a multiprotein complex, specifically a ribonucleoprotein, which functions in gene silencing via a variety of pathways at the transcriptional and translational levels. Using single-stranded RNA fragments, such as microRNA, or double-stranded small interfering RNA, the complex functions as a key tool in gene regulation. The …

Risc: O stare de incertitudine în cazul în care unele dintre posibilitățile implica o pierdere, o catastrofă sau alte urmări nedorite. Măsurarea riscului: Un set de posibilități, fiecare cu cuantificate probabilități și cuantificate pierderile. Exemplu: "Există o 40% șanse propuse bine de ulei va fi uscat cu o pierdere de 12 milioane de dolari în foraj de explorare costurile".

The Risc PC is Acorn Computers's RISC OS/Acorn RISC Machine computer, launched on 15 April 1994, which superseded the Acorn Archimedes. The Acorn PC card and software allows PC compatible software to be run. Like the Archimedes, the Risc PC continues the practice of having the RISC OS operating system in a ROM module. Risc PC augments the ROM-based core OS …

Berkeley RISC is one of two seminal research projects into reduced instruction set computer based microprocessor design taking place under the Defense Advanced Research Projects Agency Very Large Scale Integration VLSI Project. RISC was led by David Patterson at the University of California, Berkeley between 1980 and 1984. The other project took place a short …

Each of these classic scalar RISC designs fetches and tries to execute one instruction per cycle. The main common concept of each design is a five-stage execution instruction pipeline. During operation, each pipeline stage works on one instruction at a time. Each of these stages consists of a set of flip-flops to hold state, and combinational ...

PA-RISC is an instruction set architecture (ISA) developed by Hewlett-Packard. As the name implies, it is a reduced instruction set computer (RISC) architecture, where the PA stands for Precision Architecture. The design is also referred to as HP/PA for Hewlett Packard Precision Architecture .

A reduced instruction set computing ( acronym RISC pronounced risk ), represents a CPU design method to simplify instructions which "do less" but provide higher performance by making instructions execute very fast. RISC was developed as an alternative to what is now known as CISC. However, there are CPU designs other than RISC and CISC.