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Define UNIX device driver The UNIX device driver is structured into two halves called top half and bottom half
Which are the different states of a process? Different status of a process is: New: When the process is created. Running: When instructions are executed. Wait
how are the window activate
how copy on write on pages when many process works at a same time?
A- In a table format, compare between Programmed I/O, Interrupt -driven I/O, and Direct Memory Access (DMA) in terms of basic idea, Advantages, disadvantages, and the operating en
Utility Programs: those programs which are not the essential part of operating system. But they provide different utilities / features to the users e.g. MS-DOS : Fdisk, FORMAT, AT
What is an I/O subsystem? The control of devices connected to the computer is a main issue while designing operating systems. Because I/O deices differ widely in their function
List disadvantages of using a single directory. Users have no privacy. Users must be careful in choosing file names, to avoid names used by others. Users may destroy each othe
Define the “Throughput” of a system Throughput is Number of programs processed by it per unit time
Question 1: a) Distinguish between "Long-Term Scheduler" and "Short-Term Scheduler". b) Describe the benefits of "Threads". c) Name three types of CPU Scheduling. Que
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