Hal and Rita Goldstein founded Thaddeus Computing in May 1985. From 1985-2011 Thaddeus Computing supported users of mobile computers with publications and by buying and selling used units it wrote about.
From 1985-1990 Thaddeus Computing published THE PORTABLE PAPER, which supported users of the HP 110 Portable PC and the HP Portable Plus.
From 1990-1999 Thaddeus Computing published THE HP PALMTOP PAPER, which supported users of the HP 200LX Palmtop PC series.