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Q. Define Input - Output operations?
Serial lines, Disks, tapes and other devices should be communicated with at a very low level. The user require only specify the device and the operation to perform on it while the system converts that request into device- or controller-specific commands. User-level programs can't be trusted to access merely devices they should have access to and to access them only when they are otherwise unused.
What are the benefits of multiprogramming? Responsiveness : Multithreading is an interactive application may permit a program to continue running even if part of it is block
Show the search tree generated by Hill-Climbing search (text figure 4.2, page 122; or Local Search lecture, slide 6) for each of the two heuristics (a) and (b) applied to the follo
What are the objectives and functions of operating system? Functions of operating systems 1. It allocates the resources and acts as a supervisor. 2. It hides th
What are the steps followed in testing? i. Unit testing - The individual components are tested in this type of testing. ii. Module testing - Related collection of independen
what is the meaning
VARIABLE PARTITIONING We can differ the partitions and change the location according to the size of the process. 50k 40k
What are the drawbacks of contiguous allocation of disk space? The disadvantages are a. Suffers from internal fragmentation b. Suffers from external fragmentation c. F
Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
Question: (a) What are the main challenges for Mobile Computing? (b) What is the ISM band and what is particular about this frequency band? Name two wireless technologies
Problem: Managing Outside Communication. a. What is the principal action we use when communicating through a web browser? b. Give an example of how to preaddress an email
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