Q:

What is the advantage of using RISC?

A:

There are many advantages involved with the use of RISC technology, including improved speed, simpler and more easy-to-use hardware and a shorter design cycle. RISC stands for Reduced Instruction Set Computer and it fundamentally replaced the use of CISC technology, or Complex Instruction Set Computers.

In comparison with its predecessor, an RISC computer is much faster and more user-friendly. While a CISC computer has its emphasis on hardware and complex instructions, the RISC computer is more concerned with software, and favors single-clock, reduced instruction as opposed to complex. An RISC computer also uses its transistors for memory storage as opposed to the CISC, which uses its transistors for the storage of complex instructions.

An RISC processor is much faster and can achieve speeds that are two to four times faster than a CISC. Due to its speed, more functions can be performed in shorter amounts of time. However, the RISC does have some disadvantages. One of which is that it often requires debugging. As a result of its infrastructure and instruction scheduling, it can make it tough for a programmer to debug. Debugging requires ample time and effort. An RISC also has limited code expansion, and because of this some programmers prefer the older CISC models.


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