[aresant]

More early protos in the same spirit:

1) A proto Mac LC from IDEO - https://www.bonhams.com/auctions/21652/lot/188/

2) Several other unused protos from Hartmut Esslinger @ FROG - https://www.engadget.com/2014/05/28/an-apple-flip-phone-from...

[adolph]

From the description of the LC prototype:

has a vertically-oriented screen not used on any production models. Considering the screen orientation, this very well could have been a prototype for a model targeted toward the business world, rather than the artistic, publishing and educational markets that the Mac traditionally attracted.

Clearly the writer never saw the Portrait Display, which was extensively used in desktop publishing. I loved mine.

http://myoldmac.net/SELL/apple-portraitmoni.htm

[TheOtherHobbes]

The portrait idea had a lot of prior history - not least the Xerox Alto, but also the ICL/Three Rivers PERQ, launched in 1979, with a custom Pascal-optimised microcode CPU.

https://en.wikipedia.org/wiki/PERQ

[rbanffy]

Was it possible to pair the portrait monitor with the LC?

[adolph]

Maybe, maybe not. The LC was very low performance, even compared to the pokey IIsi I first had the monitor connected to.

[rbanffy]

I ask that because the mock up is for a computer called "LC". Maybe the screen was supposed to be a color one. It looks a bit like the color classic.

[rbanffy]

The IDEO prototype looks like some relative to the Color Classic.