Operating Systems

Operating Systems

1. Modern Operating Systems

   • The operating system (OS) controls almost all functions on a computer. In this chapter, you learn about the components, functions, and terminology related to the Windows 7, Windows Vista, and Windows XP operating systems.

2. Terms

   • Multi-user
     • Multitasking
       • Multiprocessing
         • Multithereading
           • A program can be broken into smaller parts that are loaded as needed by the operating system. Multithreading allows different parts of a program to be run at the same time.
         • The operating system can support two or more CPUs
       • The computer is capable of operating multiple applications at the same time
     • Two or more users have individual accounts that allow them to work with programs and peripheral devices at the same time

3. Basic Functions of and Operating System