Apple released the Macintosh IIfx in 1990 as its fastest, most expensive Macintosh II model, built for professional and scientific work. Like other classic Macs of the era, it used distinctive chimes to signal startup problems that prevented a normal boot, letting technicians distinguish a successful start from a hardware fault. Recordings of these diagnostic tones were later preserved by Mac enthusiasts and emulator communities, then spread into soundboards and meme edits. The IIfx version survives because its bleak tone instantly communicates catastrophic computer failure.