What are the different accessing methods of a file, What are the different ...

What are the different accessing methods of a file? The different types of accessing a file are: Sequential access: Information in the file is accessed sequentially

What are the main challenges for mobile computing, Question: (a) What ...

Question: (a) What are the main challenges for Mobile Computing? (b) What is the ISM band and what is particular about this frequency band? Name two wireless technologies

Synchronization, What is the different between basic synchronization and hi...

What is the different between basic synchronization and high level synchronization

How the nested macro calls are expanded, How the Nested Macro calls are exp...

How the Nested Macro calls are expanded LIFO (Last in First out)

Backup and recovery, what is it all about? why do we need? what are the typ...

what is it all about? why do we need? what are the types of backup? how is it done in unix?

Operating system abstractions, When we download a movie from the Internet, ...

When we download a movie from the Internet, we don't care about, say, packet sizes. However, even ifwe are not aware of howlow-level details of networks are implemented, our data i

Buffering,

Explai basic concepts of demand paging, Basic concepts When a process i...

Basic concepts When a process is to be changed in, the pager guesses which pages will be used before the process is changed out again. Instead of swapping in a entire process,

Why we need to use a while statement when using wait method, Q. The wait()...

Q. The wait() statement in every Java program examples was part of a while loop. Describe why you would always need to use a while statement when using wait() and why you would ne

What is a resource-allocation graph, What is a resource-allocation graph? ...

What is a resource-allocation graph? Deadlocks can be explained more precisely in terms of a directed graph called a system resource allocation graph. This graph having of a se