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What is process control block?
Every process is represented in the OS by a process control block. It has many pieces of information associated with an exact process.
What is the purpose of system calls? System calls permit user-level processes to request services of the operating system.
An operating system involves 3 user processes each one requiring 2 units of resource R .The minimum number of units of R like no deadlocks will ever take place is The minimum
Hashed page tables A common approach for handling address spaces larger than 32 bits is to use a hashed page table. Every entry in the hash table having a linked list of elemen
Define UNIX device driver The UNIX device driver is structured into two halves called top half and bottom half
What are the necessary conditions for deadlocks? 1. Mutual exclusion : Only one process at a time is able to use the resource. 2. Hold and wait : A process should be holdi
Write a XML with database with book details (BOOK ID, Title, Author, subject, publisher year, language, vendor, and price)
The producer-consumermodel above has a standard human analogy of an assembly line. Humans have specialized skills, however, whereas threads running the same program do not need to
___paging fecthces a page only when needed
Question 1: "Three entities must be accountable and responsible for accident prevention." (a) List and explain these three entities. (b) Discuss the role of workers in ma
Essential Properties of Operating System 1. Batch: Jobs with similar needs are batched together and run through the computer as a group by an operator or automatic job sequen
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