Surfing the web (Wikipedia and Hacker News) using a 27-year-old Macintosh Plus.
8MHz MC68000 CPU
4 MB RAM
100 MB Zip drive as storage
MacWeb v2.0 browser (circa 1996, not 1994 as shown in the video)
Filmed September 2013
Here’s a quick summary of how it was done:
MacWeb, to MacTCP, to MacPPP, to the serial port, to a level shifter, to a Raspberry Pi (running SLIRP and a custom proxy written with Python, Flask, and Beautiful Soup), to ethernet, to a router, to a cable modem, and off to the internet