I need HELP launching applications

Could someone please explain to me how to launch another program from
within Delphi (version 1.0). I would like to open another application
(such as a terminal application), allow it to run and then when it
closed, I am back in Delphi.  I dont need DDE or anything like that. I
just want to be able to open and close apps from within a compiled
delphi application. ----------Thank you