Operating System

2. a traditional model of a software program, which is built as a unified unit that is self-contained and independent from other applications.
3. executes multiple programs at a time.
7. makes use of multiple CPU's to complete a specific task.
11. an interface between a program running in user space and the operating system (OS).
12. the system by which people (users) interact with a machine.
14. receive messages, transfer status information
15. denoting software for which the original source code is made freely available and may be redistributed and modified.
17. Sharing of a computing resource among many users

1. Allowing communication with the operating system via a control language
3. the near-minimum amount of software that can provide the mechanisms needed to implement an operating system .
4. When two or more programs run at the same time
5. It temporarily stores input or output data in an attempt to better match the speeds of two devices
6. end, abort, set process attributes, wait for time, wait event
8. close, write, reposition, get file attributes
9. components that will run all the time when a computer is turned on.
10. copying information into faster storage system main memory can be viewed as a last cache for secondary storage.
13. a process of transferring data by placing it in a temporary working area where another program may access it for processing at a later point in time.
16. Allowing files to be recorded in a tree structure.