Doom (typeset as DOOM in official documents) is a 1993 science fiction horror-themed first-person shooter (FPS) video game by id Software. It is considered one of the most significant and influential titles in the video game industry, for having ushered in the popularity of the first-person shooter genre. The original game was divided into three nine-level episodes and was distributed via shareware and mail order. The Ultimate Doom, an updated release of the original game featuring a fourth episode, was released in 1995 and sold at retail. In Doom, players assume the role of an unnamed space marine...

The O2 was an entry-level Unix workstation introduced in 1996 by Silicon Graphics, Inc. (SGI) to replace their earlier Indy series. Like the Indy, the O2 used a single MIPS microprocessor and was intended to be used mainly for multimedia. Its larger counterpart was the SGI Octane. The O2 was SGI's last attempt at a low-end workstation. == HardwareEdit == === System architectureEdit === Originally known as the "Moosehead" project, the O2 architecture featured a proprietary high-bandwidth Unified Memory Architecture (UMA) to connect system components. A PCI bus is bridged onto the UMA with one slot...

The DEC PDP-7 was a minicomputer produced by Digital Equipment Corporation as part of the PDP series. Introduced in 1965, it was the first to use their Flip-Chip technology. With a cost of only US$72,000, it was cheap but powerful by the standards of the time. The PDP-7 was the third of Digital's 18-bit machines, with essentially the same instruction set architecture as the PDP-4 and the PDP-9. It was the first wire-wrapped PDP. The computer had a memory cycle time of 1.75 µs and add time of 4 µs. I/O included a keyboard, printer, paper-tape and dual transport DECtape drives (type 555). The standard...