polymorphic virus
A virus that changes its virus signature (i.e., its binary pattern) every time it replicates and infects a new file in order to keep from being detected by an antivirus program.
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- Polymorphism
Generally, the ability to appear in many forms. In object-oriented programming, polymorphism refers to a programming language’s ability to process objects differently depending on their data type or class. More specifically, it is the ability to redefine methods for derived classes. For example, given a base class shape, polymorphism enables the programmer to define different […]
- polyphonic ringtone
In mobile phone technology, a polyphonic ringtone is a type of ringtone that is more advanced and offers better quality than standard monophonic ringtones. Polyphonic ringtones can consist of several notes at one time, compared to a monophonic ringtone that consists of a series of notes, one musical note at a time.
- Pop-Up Blocker
A pop-up blocker refers to any software or application that disables any pop-up, pop-over or pop-under advertisement window that you would see while using a Web browser. Some pop-up blockers may try to close all pop-up windows, some may remove all advertising from a publisher’s Web site, and still others may help you choose which […]
- pop-up utility
A program installed to be memory resident so that you can always execute it by pressing a special key, called a hot key. When you press the hot key, the pop-up utility appears, regardless of which application you are currently running. When you exit the pop-up utility, the system returns you to your previous program. […]
- Pop-Up Window
A window that suddenly appears (pops up) when you select an option with a mouse or press a special function key. Usually, the pop-up window contains a menu of commands and stays on the screen only until you select one of the commands. It then disappears. A special kind of pop-up window is a pull-down […]