- Beta Ceti (β Ceti, abbreviated Beta Cet, β Cet), officially named Diphda /ˈdɪfdə/, is the brightest star in the constellation of Cetus. Although designated ‘beta’, it is actually brighter than the ‘alpha’ star in the constellation, Menkar, by half a magnitude. This orange giant is easy to identify due to its location in an otherwise dark section of the celestial sphere. Based on parallax measurements, it lies at an estimated distance of 96.3 light-years (29.5 parsecs) from the Sun.
- Microsoft Windows 1.01 (pcjs.org)
Microsoft Windows 1.01, the first public version of Windows, was released on November 20, 1985. It is shown here running on an IBM PC XT (Model 5160) with an EGA Display. You can also run Windows 1.01 with a CGA Display. Or just for fun, on four machines simultaneously.