an announced chess entity developed by James Testa, specified to run on a 32-bit Sun SPARCstation (12 mips), written in C, utilizing a 100 MB hash table and the Berkeley Chess Microprocessor, designed and developed by Testa and his advisor, Alvin M. Despain at University of California, Berkeley . Zerker was registered to play the ACM 1990, and is mentioned in the tournament booklet with a speed of 7,000,000 moves per second  , roughly three times faster than Deep Thought at that time  . Unfortunately, a damage of its Sun computer  during shipment from California to Manhattan forced its withdrawal, and apparently, the project was later abandoned.
Zerker is elated to or synonym  of Berzerker or Berserker, Norse warriors who are reported in the Old Norse literature to have fought in a nearly uncontrollable, trance-like fury, a characteristic which later gave rise to the English word berserk. The name berserker arose from their reputed habit of wearing a kind of shirt or coat (Old Norse: serkr) .
- Berserk from Wikipedia
- Berserker from Wikipedia
- Berserker (disambiguation) from Wikipedia
- Apoptygma Berzerk - Kathy's Song  , YouTube Video
- Bronze plates with raised images, Vendel era, found in Öland, Sweden. Possibly representing the Berserk right from Odin, Berserker from Wikipedia
- James Testa, Alvin M. Despain (1990). A CMOS VLSI chess microprocessor. University of California, Berkeley, IEEE Custom Integrated Circuit Conference
- The 21st Annual ACM North American Computer Chess Championship from The Computer History Museum, pdf
- Quick moves claim computer-chess title - Free Online Library, November 24, 1990
- Monty Newborn, Danny Kopec (1991). The 21st ACM North American Computer Chess Championship. Communications of the ACM, Vol. 34, No. 11
- Mega Man Star Force 2 - Wikipedia
- Berserker - Etymology from Wikipedia
- Kathy's Song - Lyrics
- Let there be light - Wikipedia