|
|
Host
|
Express
|
Deluxe
|
Centralized
|
Decentralized
|
|
AT&T
|
x
|
x
|
x
|
x
|
|
ATEX
|
x
|
-
|
x
|
-
|
|
AVION
|
x
|
x
|
x
|
x
|
|
Burroughs/Unisys
|
x
|
x
|
x
|
x
|
|
Compaq
|
x
|
x
|
x
|
x
|
|
Control Data
|
x
|
x
|
x
|
x
|
|
Convergent Tech
|
x
|
-
|
x
|
-
|
|
CRAY
|
x
|
x
|
x
|
x
|
|
Data General
|
x
|
x
|
x
|
x
|
|
Data point
|
x
|
-
|
x
|
-
|
|
DEC (General)
|
x
|
x
|
x
|
x
|
|
DEC (AXP)
|
x
|
x
|
x
|
x
|
|
DEC (Bi-Bus)
|
x
|
x
|
x
|
x
|
|
DEC (Q-Bus)
|
x
|
x
|
x
|
x
|
|
DEC - 20
|
x
|
-
|
x
|
-
|
|
DEC (DMF -32)
|
x
|
x
|
x
|
x
|
|
DEC (Unibus)
|
x
|
x
|
x
|
x
|
|
GEAC
|
x
|
-
|
x
|
-
|
|
General Automation
|
x
|
-
|
x
|
-
|
|
Harris
|
x
|
x
|
x
|
-
|
|
Harris 9300
|
x
|
-
|
x
|
-
|
|
HP 3000
|
x
|
x
|
x
|
x
|
|
HP 9000
|
x
|
x
|
x
|
x
|
|
Honeywell (BULL)
|
x
|
x
|
x
|
x
|
|
IBM AS/400
|
x
|
x
|
x
|
x
|
|
IBM PC/AT
|
x
|
x
|
x
|
x
|
|
IBM PS/2
|
x
|
x
|
x
|
x
|
|
IBM RS/6000
|
x
|
x
|
x
|
x
|
|
ICL
|
x
|
x
|
x
|
-
|
|
KMW
|
x
|
-
|
x
|
-
|
|
MODCOMP
|
x
|
-
|
x
|
-
|
|
Motorola
|
x
|
x
|
x
|
x
|
|
NCR
|
x
|
x
|
x
|
x
|
|
NCR Tower
|
x
|
x
|
x
|
x
|
|
Pertec
|
x
|
-
|
x
|
-
|
|
Prime
|
x
|
x
|
x
|
x
|
|
Pyramid
|
x
|
x
|
x
|
x
|
|
Qantel
|
x
|
-
|
x
|
-
|
|
Sanyo
|
x
|
x
|
x
|
x
|
|
Sequent
|
x
|
x
|
x
|
x
|
|
Sequoia
|
x
|
x
|
x
|
x
|
|
Stratus
|
x
|
-
|
x
|
-
|
|
SUN
|
x
|
x
|
x
|
x
|
|
Tandem
|
x
|
x
|
x
|
x
|
|
Unisys
|
x
|
x
|
x
|
x
|
|
Wang
|
x
|
-
|
x
|
-
|
|
