1 How does an operating system provide infinite resources 2

1. How does an operating system provide infinite resources?

2. What is the difference between a process and a thread?

Solution

1. The infinite resources which are provided by the operating system are memory, filespace and CPU time these infinite resources used to improve the performance of the system.

2. The difference between a process and thread are:

-> Threads share the address space of the process that created it; processes have their own address space.

-> Threads have direct access to the data segment of its process; processes have their own copy of the data segment of the parent process.

-> Threads can directly communicate with other threads of its process; processes must use interprocess communication to communicate with sibling processes.

-> Threads have almost no overhead; processes have considerable overhead.

-> New threads are easily created; new processes require duplication of the parent process.

-> Threads can exercise considerable control over threads of the same process; processes can only exercise control over child processes.