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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.
Instruction Set Architecture: Instruction set architecture cycle-it is smallest unit of time in a processor. superscalar processor
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Why is the data bus in most microprocessors bidirectional while the address bus is unidirectional? Data Bus: These lines are used to send data to memory by output ports and
In this part you are required to develop the website that you designed in Your written report must describe any changes that you make to theoriginal plan with justification.
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
A using declaration in C++ makes it likely to use a name from a namespace without the scope operator.
Q. Show the properties of Frame Tag? This tag is used for placing an HTML file in the frame created. We should now tell browser what to put in every frame.
Enumerate about the Decimal Arithmetic Unit The user of the computer input data in decimal numbers and receives output in the decimal form. But a CPU with ALU can perform arith
Digital codes
Digital Signature is Software to recognize signature
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