On This Day in Tech History

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Burroughs Received Patent for Calculating Machine

Burroughs Received Patent for Calculating Machine

1888

William S. Burroughs receives a patent for his calculating machine and within a year had produced 50 machines. They proved to be difficult to use but he soon improved on them and went on to become a force in the developing calculator industry.

NASA lost communication with the Mars Observer almost a year after its launch

NASA lost communication with the Mars Observer almost a year after its launch

1993

The Mars Observer loss of communications on August 21, 1993, was caused by a rupture of the fuel (monomethyl hydrazine (MMH)) pressurization side of the spacecraft's propulsion system, resulting in a pressurized leak of both helium gas and liquid MMH under the spacecraft's thermal blanket.

Android version 8.0 (Oreo) was released

Android version 8.0 (Oreo) was released

2017

Android Oreo was internally codenamed "Oatmeal Cookie." On March 21, 2017, Google released the first developer preview of Android "O", available for the Nexus 5X, Nexus 6P, Nexus Player, Pixel C, and both Pixel smartphones. The second, considered beta quality, was released May 17, 2017. The third developer preview was released on June 8, 2017 and offered a finalized version of the API.

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