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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.
2. Explain any ten CASE tools
Search mechanisms in Prolog We can utilize this simple Prolog program to describe how Prolog searches: president(X) :- first_name(X, georgedubya), second_name(X, bush). p
Q. Illustrate the Uses of Assembly Language? Uses of Assembly Language Assembly language is used mainly for writing short, efficient, specific interfacing modules/ subrou
(a) Explain, using suitable examples, the functions of each of the sub system mentioned in the context of a large chain of supermarkets (i) Database Management Subsystem (ii)
Bitwise-Exclusive-OR Operator: ^ exclusive-OR-expression : AND-expression exclusive-OR-expression ^ AND-expression The bitwise-exclusive-OR operator (^) compares
general computer animation functions
This is the set of tools and facilities that you work with as the MATLAB user or programmer. It contains facilities for managing the variables in your workspace and importing and e
What are the functions of the following header files: (i) ctype.h (ii) string.h (i) ctype.h: It is a header file that having character tes
Explain about unix file system architecture
Common Functions of Interrupts: An Interrupt transfers control to the interrupt service routine, generally through the interrupt vector table, which contains the addresses
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