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What are the different directory structures? Explain each type.
There are five dissimilar directory structures:
1. Single level directory
2. Two level directory
3. Tree structured Directories
4. Acyclic graph directories
5. General Graph directories
(a) Describe services of operating systems. (b) Differentiate among the short term, medium term and long term scheduling that are given by multi-tasking operating systems.
how response times are reduced by allowing time sharing on top of multiprogramming
When a computer is started on, the program that executed first is named the ''operating system.'' It controls pretty much all applications in the computer. This adds who logs in, h
Q. An operating system sustains a paged virtual memory using a central processor with a cycle time of 1 microsecond. It costs an additional one microsecond to access a page other
W hat is hashed page table & method of hashed page table with details
Describe the technique of packing. The physical record size will not accurately match the length of the desired logical record and the Logical records may even differ in length
What is a two state process model? At any time a process is being implementing by a processor or not. Therefore a process may be in Running or not running state. When an Ope
Q. How does DMA raise system concurrency? How does it make difficult hardware design? Answer: DMA increases system concurrency by allowing the CPU to perform tasks while the
Many-to-Many Model The many-to-many model- many user-level threads to many kernel-level threads avoids several of the limitations of the one-to-one model, although extending mu
function of lazy swapper
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