TL;DR
The article details the refurbishment of a Tektronix TDS7104 oscilloscope, a high-performance 4-channel, 1 GHz device that the author purchased for $300 at a flea market. The scope runs on Windows 2000 Pro Embedded and features a RadiSys NLX motherboard with an 850 MHz Celeron processor. Upon receiving it, the author encountered a CMOS battery error that was resolved by replacing the CR2032 battery, allowing the scope to boot properly.