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In early Unix kernels the approach used to avoid race conditions in kernel code was to use a combination of the following two techniques: (i) non- preemptive scheduling of threads when they are running in privileged mode and (ii) interrupt disabling for those short sections of kernel code that manipulate data used by interrupt handlers. (a) Explain how and why these techniques, when used together, are sufficient to prevent race conditions in kernel code for a uni-processor operating system. (b) Explain why it is insufficient to use one or other technique in isolation. (c) Explain why the approach of using them together is still not sufficient for a shared memory multi-processor operating system, and describe a technique that would solve the problem in a shared memory multi- processor operating system.
There are several Internet browsers available today, and many people select which to use without giving it consideration. Explain which is better software tool: Internet Explorer, Mozilla Firefox, or Google Chrome?
Review the WBS and Gantt chart you created for Tasks Propose three to five additional activities that would help you estimate resources and durations. Write a one-page paper describing these new activities.
Complete the following program that has an array to store one month of hourly templerature readings. Assume each month is 30 days long. Rows represent days of the month and columns represent hours of the day.
you have been working as a police officer for the centervale police department for two years. you are on your nightly
These are called code generators. Analyze the advantages and disadvantages of this trend. What are the major obstacles in moving this forward?
Create complete, written procedure for New Century Health Clinic maintenance change requests. Include suitable forms with procedure.
Local challenges Collapse . What are the issues and challenges facing your country regarding information security, spam, Internet governance and data? How would you approach a solution to the problem?
Do you think that your digital portfolio should depend on the job, title, or industry you are planning or working on getting into? Do task and responsibilities of a specific job matter when designing your digital portfolio?
Implement the stack and queue with a single class interfaces with a unique class that is derived from class LinkedDeque (Code Fragment 5.21)
Discuss the advantages and disadvantages of outsourcing IT.
Complete In The Lab 2 - Creating the Walburg Energy Alternatives Database - on page AC 68 - AC 69 at the end of Access Chapter 1. Perform all steps. Submit the entire database file for grading.
q1. evaluate and discuss the human resource security privacy and stability issues affected by information technology.
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