Yes, that is the case.? My Kaypro4/84 has a 1mb ramdisk, very fast.
The compupro also has a 512K ram disk and hard disks with smart
controller, faster even at only 4mhz z80.
AT class machines even with then hard disks that the same bottleneck.
The 8080, well, it was just slow, though it beat the tar out of the 8008
by an easy factor of 10x or more.? Still for the first system I ever?
built it was pretty amazing, then I got to see the 8080 instruction set.
Back then the PDP-8 (e or i) was the benchmark used, later PDP-11.
Generally at each moment I was pushing for best performance or
greatest simplicity.? the Z80 or 8085 generally did that well for
most cases.? For less 8049 or 8051.
Allison
