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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.
Conversion of decimal number 10.625 into binary number ? Ans. There is integer part is 10 and fractional part is 0.625. Firstly convert the decimal number 10 in its equal bina
Calculation of physical address and Logical address.
State the Encryption and decryption process with example Encryption and decryption process in the Figure where Ram wants to send a confidential message to his friend Shyam. Ram
super string checker
Z80 STATUS FLAGS
Q. Explain FORM and INPUT Tag? A good way to learn about forms is to make use your notepad editor and make a new HTML document. Save it as form1.htm in some folder somewhere. Y
Explain analysis and synthesis phase of a compiler. The synthesis and analysis phases of a compiler are: Analysis Phase: In this breaks the source program in constituent
zero, one, two three address instructions
Explain Recursive Descent Parsing It is a top down parsing with no backtracking. This parsing method uses a set of recursive processes to perform parsing. Most important advant
The enableEvents() method is used to enable an event for a certain object. Normally, an event is enabled when a listener is added to an object for a certain event. The enableEvents
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