[Gmecm] Understanding injection system acronyms

[Robin Handley]

I've been scratching my head over this for a while. Could somebody tell me
if I've got these right:

TBI = TPI = just one big throttle body/butterfly that feeds all
cylinders/ports, and one great big injector at the body
PFI = just one big throttle body/butterfly that feeds all cylinders/ports,
and one injector near the engine end of each inlet runner (i.e. one injector
per cylinder)

What do you call a system which has multiple throttle bodies/butterflies
(i.e. one throttle body/butterfly for each cylinder/port) and multiple
injectors (i.e. one injector for each cylinder)?

Robin