Business Technology Practice Test 2026 – All-in-One Guide to Mastering Business Essentials Objective 5.00

Starting up application programs, running them, and managing the resources they need is handled by the operating system. It acts as the manager between software and hardware, loading a program from storage into memory, creating a process for it, and then scheduling that process to run on the CPU. The OS also allocates memory, coordinates input and output devices, and oversees access to shared resources so programs can run simultaneously without crashing each other. For example, launching a word processor causes the OS to load it, set up its process, and continually manage how much CPU time and memory it gets while you may still have other programs open. The World Wide Web is just a network service for retrieving web pages, not the system that starts and coordinates programs. Main memory is the physical RAM where data and programs reside, but it does not manage program execution on its own. An embedded system refers to specialized computers inside devices; while they may run software, they do not describe the general software layer responsible for starting and managing all applications on a typical computer. The operating system is the component that coordinates all of this.