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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.
Are there standards for electronic imaging? Given the sensitive nature of most permanent records, there are microphotography standards in place which contain microfilm, compute
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design modulo 12 up synchronous counter using t flip flop
The general method for constructing the parameters of the RSA cryptosystem can be described as follows: Select two primes p and q Let N = pq and determine ∅ (N) = (p - 1
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When a window is repainted by the AWT painting thread, it sets the clipping regions to the area of the window that needs repainting.
Differentiate between non-relocatable and relocatable programs. A non-relocatable program is one which cannot be executed in any memory area other than the area starting at i
How to parse n size depth node in java and create output in same tree format?
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