My first PC-compatible was a Zenith 386sx. It had a 40MB drive that I upgraded to a 120MB drive...lots of space! Before that I was a TRS-80 die-hard since the late 70's.
In 1994 I bought a Gateway 2000 Pentium 90 with a 540MB drive. At the time, it was the largest hard drive you could get without having to install a special driver or get a BIOS update to cross he boundary in disk size.