The OP says the machine was 'slow' -- however, getting the 2x clock upgrade, the machine's dhrystone performance is 1.5 VAX MIPS. That's not 'terrible'. It's

The OP says the machine was 'slow' -- however, getting the 2x clock upgrade, the machine's dhrystone performance is 1.5 VAX MIPS. That's not 'terrible'. It's like having a VAX-11/785 in your pocket that runs on 2 AA batteries. Mine runs the 16 bit MS C compiler, MASM, all manner of DOS programs (it's DOS 5.0), and the built-in apps are really quite good; 123 is particularly well done, and the calc app is, as expected, superb (has about half a dozen different 'modes' for Sci, Eng, TVM, etc). Auto-backed up every night, to an SRAM card in the PCMCIA slot. Full RS-232 Serial Port - this is one of the main ways one connected it to modems (although PCMCIA modem cards existed). And it had the very first IrDA port; 115,200 bps. I have mine right underneath my computer monitor, and use it many times per day. It's just more useful with a keyboard than these screens with virtual keyboards for the engineering stuff I do. If it would have, say, bluetooth to the smart phone that I could use as an internet gateway, and if it had a backlight -- getting close to perfection as a portable productivity device.