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Computer Science/HOMEWORK QUESTIONS!

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Expert: - 5/11/2009


Question
Suppose you are designing a computer that has a CPU with two levels of cache (level 1 and level 2). The access times for levels 1 and 2 are 10 nsec and 20 nsec respectively. This CPU uses main memory which has access time of 100 nsec and a disk which has access time of 200 msec. Assume that a faster memory is always accessed before a slower one in order to find any data. If data is not found in cache or main memory then it will always be found on disk. If 5% of accesses are level 1 cache hits, 20% are level 2 cache hits and 50% are memory hits, what is the average(expected) access time for this computer?

Answer
Don AND Anyone else with HOMEWORK questions:

SORRY DO YOUR OWN HOMEWORK! THAT IS THE PURPOSE OF HOMEWORK!  IF I ANSWERED HOMEWORK QUESTIONS THEN only I WOULD KNOW HOW TO WORK IT OUT BECAUSE i FIGURED IT OUT.

               PLEASE DO YOUR OWN HOMEWORK QUESTIONS.

Kind Regards,
Jeff

PS: Don based on the number of HOMEWORK questions you sent to this site: MAYBE I ought to become the student and you do nothing!  

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Jeff Laatsch

Expertise

I can answer programming questions related to: C, C++, PHP, PERL, VB, SQL, ASP, JAVA, JS, XHTML, XML, CSS, PL/SQL, AWK, SED, VI Editor and if I don`t know the answer I have 20+ years systems experience as my resource. I can handle general questions in most areas of computer science including systems integration, API, networking related issues.

Experience

An accomplished WEB Master/Developer, Programmer Analyst, Systems Administrator with 12+ years of industry background in full system management and technical hardware/software support expertise including SUN, HP-UX, AIX, LINUX, and Windows NT,Win2000, 2003 with Active Directory: Well rounded in software engineering principles, requirements gathering, analyst, definition, system architectural design, OOA, OOD, UML, SEI-CMM and SDLC: Knowledgeable in Data Warehouse, Data Mart technologies, and experienced working with ORACLE databases utilizing ERP, SQL, PHP, PERL, C, C++, PL/SQL,SQL, JAVA, VB.NET, SOAP and other Dynamic WEB technologies: Analytical thinker and problem solver: Goal oriented professional who has a Masters in Computer Systems with emphasis in computer programming (C++ and Application Development).

Education/Credentials
City University, WA 12/03
Master of Science in Computer Systems
with Emphasis in Computer programming (C++/App Development)
Chapman University, WA 6/01
Bachelor of Science in Computer Information Systems
Emphasis in Computer networks and security

20+ years of experience in the Computer Science Industry

Awards and Honors
7/96,9/96,10/96,1/97,2/98,6/99,10/01,7/02,01/03,
Outstanding Achievement & Special Recognition

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