ISRO PRL Technical Assistant CS/IT 2025

Detailed Explanation:

Seek time is the time required for the disk read/write head to move to the required track (cylinder).

Rotational latency is the additional time for the desired sector to rotate under the head.

Access time generally includes seek time and rotational latency (and, depending on definition, transfer time).

Detailed Explanation:

A process or thread has an execution context, including processor state such as registers and the program counter.

When the CPU switches execution from one process/thread to another, the operating system saves the old context and restores the new one.

This operation is called context switching.

Detailed Explanation:

A C# compiler targeting the .NET runtime normally compiles source code into Common Intermediate Language (CIL), also called Intermediate Language (IL).

The Common Language Runtime (CLR) loads this code and typically uses a Just-In-Time (JIT) compiler to translate it into native machine instructions for execution.

Detailed Explanation:

Initially, a = 50.

In b = a++, the post-increment operator first assigns the old value (50) to b, then increments a to 51.

c = a assigns 51 to c.

std::cout << a << b << c prints the values consecutively, without spaces: 51, 50, 51.

Detailed Explanation:

OSI stands for Open Systems Interconnection.

It is a conceptual reference model standardized by the International Organization for Standardization (ISO) to describe network communication functions in layers.