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Implementing Protection with Virtual Memory - computer architecture:
To enable the operating system to implement protection in the VM system, the HW have to:
I. Support at least 2 modes that denoted whether the running process is a user process (executive process) or an operating system process (kernel/supervisor process).
II. Provide a part ion of the CPU state that a user process may read but not write (includes supervisor mode bit).
o Only operating system process may change page tables. Page tables are held in operating system address space thereby preventing a user procedure from changing them.
o When processes desire to share information in a restricted way, the OS have to assist them.
o The write access bit (in both the TLB and the page table) can be used to limit the sharing to only read sharing.
Timing for both read and update transactions should be gathered to verify whether system functions are being performed in an acceptable timeframe. This should be done standalone an
Specify the default alignment for the following field types: 'D' - Left, 'F'-Right, 'N'-Left, 'I'-Right, 'T'-Left.
How is the connectivity established in Verilog when connecting wires of different widths? When connecting wires or ports of different widths, connections are right-justified, S
Write-through vs. write-back caches
comparision of sorting techniques in performance
Let most segment of a name in DNS represents? Lest Most segment of a name in DNS shows: Individual computer.
Define Flowchart. A process of expressing an algorithm by a collection of linked geometric shapes containing explanations of the algorithm's steps.
a. Activity diagram: Activity diagram is used for functional modelling. Captures the process flow. b. Sequence diagram : Sequence diagram is used for dynamic modeling.
Use of instruction register and program counter: Q. What is the use of instruction register (IR) and program counter (PC)? Ans: The instruction register (IR) holds the inst
What should the size of ''t'' in btree be depending on the hard disk size
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