- The S-100 bus or Altair bus, IEEE 696-1983 (withdrawn), is an early computer bus designed in 1974 as a part of the Altair 8800. The S-100 bus was the first industry standard expansion bus for the microcomputer industry. S-100 computers, consisting of processor and peripheral cards, were produced by a number of manufacturers. The S-100 bus formed the basis for homebrew computers whose builders (e.g., the Homebrew Computer Club) implemented drivers for CP/M and MP/M. These S-100 microcomputers ran the gamut from hobbyist toy to small business workstation and were common in early home computers until the advent of the IBM PC.
- Mount Rushmore (summitpost.org)
The Mount Rushmore climbing area is only the 2nd SummitPost.org “climbing” submission for South Dakota. This is not overly surprising due to the state’s remoteness but is astonishing regarding the quality of granite routes that can be found here. There are two popular climbing areas south of Rapid City, South Dakota in the Black Hills National Forest (1.2 million acres!): the Needles area, which is known for its ethics via trad climbing and limited fixed protection; and the Mount Rushmore climbs which feature many fully bolted sport routes.