Install a floppy 3.5 drive in an old computer

[Snorp09]

Is it possible to install a floppy 3.5 in a computer that natively has floppy 5.25. The computers I am talking about are a compaq portable model 1 and other computer that I have also posted about.

 

[smorizio]

http://www.old-computers.com/Museum/computer.asp?st=1&c=870

looks like you can with the right floppy drive and cable.