(a)   is a computer operating system assembled under the model of free and open source software development and distribution.

_______ ________ performs a variety of functions on the computer, such as copying files, sorting data on files and checking for viruses.

(a)  

_____________ ________ controls the transmission of data within a computer network making it possible to send and receive data over media such as telephone lines and fiber optic cables.

(a)  

___________ _____ are software that assists programmers with writing programs.

(a)  

___________ ________ enables computer users to do their jobs.

(a)  

Software is written in a programming language, such as (a)   , which is used in the development of Internet applications.

_______ ________ are programs that are written for a specific purpose, to meet the user’s specific processing requirements.

(a)  

DOS is short for ____ ________ ______.

(a)  

This is software that can be purchased (or may in some cases be free such as Google docs) from a supplier and installed on the computer.

(a)