The Tandy 1000 RSX had a 386SX. The 386SX was a lower cost, 16-bit data bus version. Windows 95 minimum requirements were a 386DX (32-bit data bus) or better

The Tandy 1000 RSX had a 386SX. The 386SX was a lower cost, 16-bit data bus version. Windows 95 minimum requirements were a 386DX (32-bit data bus) or better with a 486 recommended. Here's an excerpt from the comp.sys.tandy FAQ. If nothing else, read the second paragraph. * III.C.1. Can I run Windows on my 1000? ... The RLX's can run Windows 3.1 in standard mode only, if they have the RAM upgraded to 1M. The RLX just barely meets the minimum hardware require- ments for Windows 3.1, however, and performance will be poor. Windows will not recognize the built-in mouse (see section II.G.2.). One user says of Windows 3.1 on the 1000RLX: Windows' performance is tolerable on a 486DX2/66. I like it on the RLX because I can start a program, go to the bathroom, and when I come back only have to wait a few minutes before I can actually use the #@$% thing. The RSX's can run Windows 3.1 (or 3.11) in 386 enhanced mode if the memory has been upgraded to 2M or more. There is a Windows sound driver for the RSX's built-in sound at my ftp/WWW site and at Tandy's support WWW site (see sections IV.B.1. and IV.B.2.). Tandy does not officially support the use of Windows on any model of the 1000-series. The RSX's could theoretically run Windows 95, but Microsoft does not recommend Win95 for 386's.