Amiga Disk File (ADF) is a file format used by Amiga computers and emulators to store images of disks. It has been around almost as long as the Amiga itself, although it was not initially called by any particular name. Before it was known as ADF, it was used in commercial game production, backup and disk virtualization. ADF is a track-by-track dump of the disk data as read by the Amiga operating system, and so the "format" is really fixed-width AmigaDOS data tracks appended one after another and held in a file. This file would, typically, be formatted, like the disk, in OFS.
Most ADF files are images of the Amiga-formatted tracks held on cylinder 0 to 79 of a standard 3.5" double density floppy disk, also called an 880 KB disk in Amiga terms. The size of an ADF will vary depending on how many tracks have been imaged, but in practice it is unusual to find ADF files that are not 901120 bytes in size (80 cylinders × 2 heads × 11 sectors × 512 bytes/sector).
Most Amiga programs were distributed on double density floppy disks. There are also 3.5" high density floppy disks, which hold up to 1.76 MB of data, but these are uncommon. The Amiga also had 5.25" double density disks. The WinUAE Amiga emulator supports all three disk formats, but 3.5" double density is the most common.
Dan. may mean:
Dan is an old Scandinavian given name with disputed meaning. Dan is also a Hebrew given name, after Dan, the fifth son of Jacob with Bilhah and founder of the Israelite Tribe of Dan. It is also a given name or a nickname for people named Daniel.
Dan, or the acronym DAN may refer to the following:
Dan Hibiki (火引 弾 Hibiki Dan) is a player character from Capcom's Street Fighter fighting game franchise. He was created to parody Ryo Sakazaki and Robert Garcia, the two lead characters of SNK's Art of Fighting series, as Capcom saw Ryo as a ripoff of Street Fighter characters Ryu and Ken. Since then, Dan has become a fan favorite due to his humorous design, signature moves, and mannerisms.
Introduced in Street Fighter Alpha, Dan is consistently portrayed as an overconfident, arrogant, and utterly feeble character. In the series' storyline, Dan is a self-taught martial artist whose goal is to defeat Sagat, who killed Go, Dan's father, in a brutal fight that resulted in the loss of Sagat's right eye. After defeating Sagat, Dan opens an unsuccessful school for his fighting style, Saikyo-ryu ("Strongest style").
Dan is introduced in Street Fighter Alpha and Street Fighter Alpha 2 as a martial artist who developed his own fighting style called Saikyō-ryū, "The Strongest Style", despite the considerable lack of power in his techniques. During these two games, Dan seeks to defeat Sagat to avenge his father's death. While Dan is an unlockable character in Street Fighter Alpha, in following games he is already available. By Street Fighter Alpha 3, Dan has succeeded in his quest, and seeks to perfect and promote his fighting style. In this game, he also declares himself the mentor from the fighter Sakura Kasugano and is revealed to be one of Blanka's friends.