What is block in memory?

A block in memory refers to a contiguous set of memory locations that are allocated for storage of a particular data item or set of related data items. The size of a block can vary depending on the requirements of the program, but it typically consists of several bytes or words.

Memory blocks are commonly used in computer programs for several purposes, such as storing variables, arrays, structures, and objects. They can be allocated dynamically during runtime or statically during compilation.

Memory blocks are typically addressed using a unique identifier or memory address, allowing the program to access the data stored in the block when needed. The contents of a memory block can be modified, read, or deleted by the program.

When a program deallocates a memory block, the underlying memory is released and made available for reuse by the system. It is important to manage memory blocks carefully to prevent memory leaks, which occur when a program fails to release memory after its use, leading to memory exhaustion and system crashes.