On a PC, how much memory is available to application software?
On a PC, 640 KB memory is available to application software.
An application software (app or application for short) is computer software designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user. An application is any program, or group of programs, that is designed for the end user. Applications software (also called end-user programs) include such things as database programs, word processors, Web browsers and spreadsheets.
Software Size Estimation is an activity in software engineering that is used to determine or estimate the size of a software application or component in order to be able to implement other software project management activities (such as estimating or tracking).