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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.
What is a multiple line field? A multiple line field is a special part of field which allows the user to enter multiple lines of data into it.
Explain Public Switched Telephone Network. PSTN (Public Switched Telephone Network): This is Public Switched Telephone Network (PSTN), which accommodates two types of subscri
want to know about latest work and research papers on internet data synchronization
Explain Formats supported in Linux for executable programs. Linux supports two formats for executable programs: a. Out-binary format b. ELF - dynamic libraries
Appropriate Problems for ANN learning - artificial intelligence- As we did for decision trees, it is essential to know when ANNs are the correct representation scheme for the
Q. What is Compact Disk ROM? Both audio CD and CD-ROM (compact disk read-only memory) share similar technology. Main difference is that CD-ROM players are more rugged and have
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Unencoded micro-instructions One bit is required for each control signal; so number of bits needed in a micro-instruction is high. It represents a detailed hardware vi
Q. Design an OR to AND gates combinational network for the following Boolean expression: ABCD + A'BC'D + A'BC'D' + A'BCD + (A'B'C'D' + AB'CD) Two terms in parenthesis are Don
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