A Commodore 128D(CR) that my family bought in probably late '86 or '87. It was our main PC, that I played all the SSI Goldbox games on, and had a 1200 Baud Modem, which I used to access local BBS all through High school. Later after going college, I finally got to build my own PC, a AMD 486DX2 80Mhz 12MB Mem, 600MB HD. I still own both of these, and many of the other PCs mentioned here, in my basement Antique Computer collection.
Very similar 153 tabs currently, had to check with Tab Session Manager for the count. Linux with 32Gb Ram. Firefox gets restarted maybe every 2-4 weeks. Occasionally I kill a tab that takes more then 1Gb of memory.