Note: This article is the first in a multipart series introducing the Linux swap. Part 1 appears below and is intended to familiarize the reader with the concept of swapping, why it exists, and what it’s used for. Part 2 will highlight basic analysis and management techniques for handling swap space. Part 3 will discuss the current state of swap usage and present opinions about its implementation today.
Memory: What is it?
This article will explore and clarify a fundamental concept in computers: memory. Because memory is a generic term for “storage device”, we should underscore that – in terms of modern computers – there are two main different types of memory.