Diagnosis Code for Reimbursement Claim: ICD-9-CM 879.8. Code will be replaced by October 2015 and relabeled as ICD-10-CM 879.8. The Short Description Is: Open wound site NOS.
operating system. noun. Definition of operating system for Students. : a program or series of programs that controls the operation of a computer and directs the processing of the user's programs.
Introduction Â¶. An operating system (OS) is the software component of a computer system that is responsible for the management and coordination of activities and the sharing of the resources of the computer.The OS acts as a host for application programs that are run on the machine.S X is the major operating system that is created by Apple Inc. Unlike its predecessor (referred to Classic or OS 9), OS X is a UNIX based operating system. Currently OS X is in version 10.5, with 10.5.3 being the last major software update and plans for 10.6 having been announced.