Allocation

Dynamic Memory Allocation in C++

Learn how `new` and `delete` allocate and free heap memory at runtime, and why forgetting to `delete` causes a memory leak.

Dynamic Memory Allocation in C

Master C dynamic memory allocation with malloc, calloc, realloc, and free, including sizing, zero-initialization, and leak prevention.

Contiguous Memory Allocation

Allocating each process a single unbroken block of physical memory, and the fragmentation problems that follow.

File Allocation Methods

How the operating system maps a file's logical blocks onto physical disk blocks: contiguous, linked, and indexed allocation.

What Is Fragmentation?

Fragmentation is the wasted memory that builds up as blocks are allocated and freed over time, leaving usable space scattered in pieces too small or too oddly…