[net.periphs] Trackballs?

dave@n44a.UUCP (12/06/83)

What's the lattest in trackballs? 
Measurement Systems, inc. of Norwalk, Connecticut has a nice 2 inch model
with rs-232 output for 2435 dollars, and Disc Instruments, Inc has a
2-incher with square wave output for 99 dollars (1982).
RS-232 looks like the way to go for us since things are always being
reconfigured. Any suggestions or recommendations?

thanks,
dave freeman

...decvax!genrad!wjh12!n44a!dave