Vijaya Lakshmi Potluri INFS 6210 Hardware and Operating Systems 2nd 8 weeks, Fall 2014 1. Both Holt and Dijkstra are theorists mentioned in recent chapters of the Flynn/McHoes book. Research each theorist and their work with Operating Systems. Dijkstra For avoiding deadlock, Dijkstra in 1965 proposed the banker’s Algorithm(Flynn). It works similar to our banking system with respective to giving loans and paying them back(Flynn). It mainly discusses about safety( cs cornell). For example we have n number of resources and p number of processes what happens here is resources must be distributed among the number of resources in such a way that allocation happens very efficiently and there is no deadlock(galvin). Let’s take an example to illustrate the purpose of banker’s algorithm. Suppose there are 3 processes Namely p1, p2, p3. Processes maximum allocated remaining needed P1 15 …show more content…
P1 request and is allocated to R1 2. P2 requests and is allocated to R2 3. P3 requests and is allocated to R3 4. P1 requests R2 5. P2 requests R3 6. P3 requests R1. A deadlock occurs here because every process is waiting for resource that is being held by another process but none will be released without intervention”(Flynn). REFERENCES 1. http://en.wikipedia.org/wiki/Deadlock 2. Understanding operating system by ida m Flynn(pages 149-153 of the 6 th edition) 3.”operating System Concepts” by silberschatz, Galvin and iGagne(pages 291-294 of the 8 th edition) 2. Research one of the terms under the title INTERESTING SEARCHES on page 198 of your
Problem 3. 6 Machines 8 parts The problem is represents by Table 7. This is multiple route, part volume (and single batch) and sequential CF problem.
Trap is a synchronous interrupt caused by an exceptional condition. Like invalid memory access. A trap usually results in a switch to kernel mode, wherein the operating system performs some action before returning control to the originating process 3. How can multiprogramming
1. Give an example in which the operating system would use a bitmap to manage resource. Answer: Windows, Android like operating systems uses bitmap to manage resources. 2.
It is a logic optimization used to reduce the area of complex logic in integrated circuits, thus making the circuit more efficient, which is
In 4th chapter I learned about CPU and other aspects related to it such as RISC and CISC.CPU stands for central processing unit and it is very suitable name for it as it processes the instructions that it gathers from files. Following diagrams explain the basic architecture of CPU: CPU performance is given by the fundamental law: Thus, CPU performance is dependent upon Instruction Count, CPI (Cycles per instruction) and Clock cycle time. And all three are affected by the instruction set architecture. Instruction Count CPI Clock Program x Compiler x x Instruction Set Architecture x x x Microarchitecture
In one of the common types of Tasklist exe CPU usage issues, it was found that while selecting different memory columns none of them worked in the expected way. Thus, it was not possible to display the different processes from all concerned users. An error kept getting generated on a frequent basis while trying to check the high CPU usage. If you decide to go to RUN, type CMD and type tasklist/SVC, you shall not be able to view anything in the
There are many operating systems but I am not listing all of them. One operating system is Windows, made by Microsoft. Another operating system is Mac, made by Apple. And one operating system you most likely don 't know is Linux, Linux is an open source operating system and it is the fastest, tho you probably don 't and will never use it. An open-source operating system is an operating system that you can edit like Windows is not an open source operating system so you can’t edit it, but in Linux, you can edit its operating system.
Due to the survey parties, 5 routes were found possible: One northern, three central and one southern.
Module Four: Thinking like a Historian Part One Compare the views of these two scholars by answering the following questions. Be sure to find specific examples in the selections to support your answers. 1.) What issues that surround Latino immigration to America does each author address?
“So you’ll read to him from one of your books, and he’ll ask to see the pictures. When he looks at the pictures, he’ll get so excited he’ll want to draw one of his own.” This quote is from If You Give a Mouse a Cookie by Laura Numeroff, and my first memory of exposure to the written word. My parents would read this to me at night before going to bed. This is when I realized that reading and writing are important pieces of the life puzzle, and are very important in building a strong foundation.
3.1.1 Dual Clock In this technique it is assumed that delay misses rarely happens, then circuit schedules are designed using minimal delays for critical paths. Pair of alternate clocks, fast and slow, is used. The system normally operates at the fast clock however, when an error is noticed, computation for the input values which is causing error is restarted at the slower clock. Under the premise that delay errors occur for small number of input values, the system can switch back to the faster clock on the next input value.
Carmen introduced everybody to Jana Pierson who will be teaching DA106: Dental and Medical Emergency Management and DA202: Dental Materials. Jana is a native of the Rogue Valley area just received her master’s degree and she has been a dental hygienist for 18 years. This is Jana’s first teaching experience and she is having fun and excited to be at RCC! Briefly, Teri updated the dental assistant staff with the new position changes.
He has written many books, and has talked about the evolution and creation of technology
Web Server: a) Current usage and statistics of cluster b) Web Service for registering password c) Internal Web Page for user list - for Grid FTP 2. DU Server as Head Node: a) Head node and compute nodes b) License Server for MATLAB compute nodes c) Scripts for copying data to SQL Server about user jobs 3. SQL Server a) Lookup Table for users (used from Web Server and Head node) b) Data stored from DU server. 4. Proxy Server 5.
The case chosen is IBM at the Crossroads, published by McGraw Hill Education. 3 key Issues and Recommendations A rather mind capturing case, talks about the growth story of IBM. The three key issues and future challenges in IBM’s way are: • Slow Reaction to Change: The past trends followed in IBM, show that it lacks responsiveness to change in market trends and revolutions.