XT 5160

[Tony Duell]

> In other words, it 'shipped' with Cassette Basic, but minus the cassette
> interface.  All IBM XTs will boot to the Cassette Basic prompt, if no

Correct (as for that matter, did the PC/AT)

> disk controller is found, or no diskette is found in the A drive.  You
> can type in BASIC programs and run them, even writing to drives and
> whatnot if I'm not mistaken.  My IBM PC Convertable will do the same

No, there's no support for the disks at all. Loading and saving uses the 
appropriate INT call (INT 15???) which was used for the cassette 
interface on the 5150. It's a NOP on the 5160

I've hald-considered making a paper tape punch/reader interface with a 
BIOS extension ROM that takes over that INT. Then the ROM basic would use 
paper tape for I/O on the XT and AT...

> thing, it's from the same generation of IBM 8088 machine as the PC-XT.
> 

-tony