[inforoots] GRiD and the IEEE 488 GPIB - First PC?

[Curtis A. Jones]

Barrie Robinson <barrie at look.ca> asked 
"Was Micro Computer Machinery of Kingston & Toronto,
Ontario the first 'PC' with their little APL machine
of the mid 70's??.  It was small enough to be called a
laptop."

The first machine that IBM called a PC was (I think)
the IBM 5150.  But the IBM 5100 Portable Computer was
introduced in 1975, about the same era as the MCM/70,
and also provided APL!
http://www-03.ibm.com/ibm/history/exhibits/pc/pc_2.html
Some the IBM 5100s were equipped with a GPIB (a.k.a.
IEEE-488 or HP-IB) interface for running lab
equipment.  

Portable?  Phil Smith told us (APL Bay Area Users'
Group) about carrying an IBM 5100 in a backpack on his
bicycle.  Just tried a search on "Phil Smith IBM 5100"
and the first hit is an account by Joey Tuttle:
http://www.jsoftware.com/pipermail/general/2001-August/007258.html
Curtis Jones