This data structure features fast (O(log N)) insertion, removal, and retrieval of records, provided that there is a sorting relation over their keys and there are no entries with equal keys. The AVL tree is an explicit binary searching tree, where left children of each vertex are less or equal, while right children are greater or equal than the vertex itself. In addition, the tree is balanced so that the difference between the depths of the two subtrees of each vertex is at most one.
AVRDUDE (AVR Downloader Uploader) is a program for downloading and uploading the on-chip memories of Atmel's AVR microcontrollers. It can program the Flash and EEPROM. Where supported by the serial programming protocol, it can program fuse and lock bits. AVRDUDE also supplies a direct instruction mode, allowing one to issue any programming instruction to the AVR chip regardless of whether AVRDUDE implements that specific feature of a particular chip.
AWFFull is a Web server log analysis program, forked from Webalizer. It adds a number of new features and improvements, such as GeoIP capability, internationalisation, style changes via CSS, extended front page history (more than 12 months), resizable graphs, and lots of backend changes and simplification. The long term goal is to focus on Web Analytics, not just Web Reporting.
AWeather is a real-time weather data viewer designed for weather enthusiasts. AWeather is not a weather widget/dockapp that displays a pre-computed forecast. It is designed to be an easy to use program that integrates a variety of meteorological data in a simple unified interface. Currently, AWeather only displays data provided by the United States National Weather Service.