Applications "talk to" the operating system for all user interface and file management operations. Also called an "executive" or "supervisor," an operating system performs the following functions.

An operating system is a collection (or suite ... One method of memory management is known as paging. Memory is broken up into fixed-size blocks, known as pages. Different operating systems ...

Examines the structure and function of operating systems as an intermediary between applications and computer hardware. Topics include OS design goals, hardware management ... systems calls to the ...

A multiuser operating system and database management system (DBMS) that runs on x86, Linux and Unix platforms. Introduced in 1965, Pick has been highly praised for its flexibility and advanced ...

When a program is run, it is loaded into memory. The operating system determines how much memory the program requires, and allocates enough pages to hold it and its documents. When the program is ...