In the last lesson, you encountered the concept of a Real-Time Operating System (RTOS), and you worked out a manual procedure of switching the context from one thread to another. In this lesson, ...

This fifth lesson on RTOS finally addresses the real-time aspect of the “Real-Time Operating System” name. Specifically, in the video lesson 26, you add a preemptive, priority-based scheduler to the ...

Modern CPUs can run in two modes: kernel mode and user mode. When a CPU runs in kernel mode, an extended set of instructions is allowed, as is free access to anywhere in memory and device registers.

To load a program into memory, you mustfirst load a program into memory. The bootupprocess, often a complex multistep sequenceinvolving numerous substeps, solvesthis problem. Any boot-up process, ...

My name is Charles Thomas Wilkes (my preferred name is “Tom”). I am very fortunate to have rejoined the faculty of the UMass Lowell Miner School of Computer & Information Sciences in 2017, after being ...

This guide was reviewed by a Business News Daily editor to ensure it provides comprehensive and accurate information to aid your buying decision. There’s no denying that software runs the world, and ...

The history of computing could arguably be divided into three eras: that of mainframes, minicomputers, and microcomputers. Minicomputers provided an important bridge between the first mainframes and ...

The tech giant will begin selling its first cell phone based on Linux this year and says most models will follow suit--a sign of the growing popularity of the operating system. Stephen Shankland ...