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Additional Reference bits algorithm
Here we keep an 8-bit byte for every page in memory. At standard intervals the reference bit is shifted by the OS. If a shift register contains 00000000 then the page hasn't been used for the last 8 time periods. A page with a history 11000000 is more recently used than 01000000. The no of bits are able to be varied accordingly to the needs of the OS.
Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.
Now we consider the following questions: how can the parent process communicate with its child? Or how can children processes communicate with other children? The exact answer depe
Memory Protection
What is a path name? A pathname is the path from the root by all subdirectories to a specified file. In a two-level directory structure a user name and a file name explain a pa
What are the five major activities of an operating system in regard to file management? The creation and deletion of files The creation and deletion of directories The s
Define the Main reason to encrypt a file Major reason to encrypt a file is secure it for transmission.
Problem: a) To ensure proper operation, the operating system and all the other programs must be protected from any malfunctioning program. Describe a mechanism which is impleme
Question: (a) Answer the following questions based on the code snippet below. 1. int main (int argc, char *argv[]) 2. { 3. 4. pid_t processId; 5. 6. processId =
One reason to learn C and C++ is simply that so much software is written in these languages. A related, butmore fundamental reason, is that C and C++ are relatively low-level, allo
Determine how Action implementing instruction’s meaning are a actually carried out Action implementing meaning of instruction are a actually carried out Instruction executio
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