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Disk requests arrive at the disk driver for cylinders, 45, 97,21,43,11,69,81,8,55,14,78,74, and 7. A seek takes 5 milliseconds per cylinder moved. Assume that the arm starts initially at cylinder 50 and was moving downward.
How much seek time is needed for:
A) First-come, first served.
B) Closest cylinder next.
C) Elevator algorithm.
company wants to upgrade the computers they have by adding another internal hard drive and preparing it for use. How do you explain how to do this and the options that the company has?
Sommerville recommended that objects manipulated through users should be drawn from their own domain rather that an computer domain.
What are some distinct differences and similarities between Linux and Unix? Why do you think it is important to know about both of these operating systems
Applications are the programs that make our computers powerful. Not counting Microsoft Office, what are some of the new applications that you see making a big difference to computer users in next some years?
You are asked to design the virtual memory system for a new operating system working on small mobile devices. The memory operates at 333 MHz with a word size of 4 bytes.
The designer starts with a high level description of functions that are to be implemented and builds lower level explanations of how each module will be organized and related to other modules.
Create a program to calculate numeric grades for a course. The course records are in a document that will serve as the input document.
Use Library and internet resources to analyze five computer forensics tools. For each tool, list the vendor and its functions.
Throughput and capacity are determining factors for effectiveness of a system more so than processor speed?
A web system deployed on campus has a failure rate of 10-3 failures per hour. What is the likeihood that the system will continue operating without failure throughout the duration of one week (Monday to Friday)?
What is race condition in this protocol?debitcard machine determine current value of card in dollars which is stored in value x.
Construct a resource allocation graph with the following processers and resources, the system consists of four processers P1, P2, P3, and P4 and five resources R1, R2, R3, R4, and R5.
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