Exam (elaborations)
CISC vs RISC Exam Questions & Answers 2024/2025
- Course
- Institution
CISC vs RISC Exam Questions & Answers 2024/2025
[Show more]
Content preview
CISC vs RISC Exam Questions &Answers 2024/2025
What is a CISC architecture? - ANSWERSComplex Instruction Set Computer: a large instruction set is used
to accomplish tasks in as few assembly lines as possible. Processor hardware is larger and more complex
as it is built to understand/execute many subtasks based on only one single instruction.
What are the advantages of CISC? - ANSWERS1. Compiler does very little work to translate a high level
language into machine code (software does less work as emphasis is on hardware
2. Short code means less RAM is used/makes more efficient use of RAM
3. Larger number of complex instructions built into hardware of a CISC processor
4. Distinguished instruction ADDSTA will both load, add and store the numbers in a storage location, in
only one instruction
What are the disadvantages to CISC architecture? - ANSWERS1. More than one clock cycle to complete
one instruction
2. With an unknown time for each instruction, pipelining cannot be used
3. Physically larger, typically more expensive, requires more silicon to make etc
4. Many specialized instructions built in to hardware are never used - only 20% used
What is the RISC architecture? - ANSWERSReduced Instruction Set Computer: only simple instructions
included in the instruction set that take one clock cycle each to complete. More emphasis on software so
smaller and simpler processor hardware used. Compiler has more work to do due to more assembly
language lines. Smaller in size cheaper to produce.
What are the advantages of RISC architecture? - ANSWERS1. Single machine cycle per instruction means
known execution time and pipelining is possible.
2. Less hardware/fewer transistors required as emphasis on software
3. Lower Energy requirements
4. Cheaper and smaller in size
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Bensuda. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71947 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now