This is what Doug had as his first computer. He still has his old computer and he said it would start right up if he turned it on. When we go back to our old home in Los Osos, we will look for it and I will take a picture of it. :-)
From Old-Computers.Com Museum:
This is a luggable IBM-PC compatible system. It tends to offer an all-in-one solution for the perfect 80's business man. Back in 1983 it was the first Japanese computer completely IBM-PC compatible (hardware & software).
It has a built-in thermal printer (80/132 columns, 8.5'' wide) using paper-rolls. This was quite useful where you were on the move, but the weight of the whole system is also quite impressive. It is maybe transportable but surely not portable !
It was also possible to connect a more sophisticated printer through the Parallel port.
There is a 9'' CRT green display built-in along with a brightness control.
An interesting feature is that you can also connect the Sr Partner to an external color monitor, thus unleashing the fantastic power of this ultra-modern laptop...err. Maybe not, but you can at least enjoy CGA color graphics (640 x 200 with 4 colors, wow).
Apparently there were several models with different storage configurations : one 5''1/4 disk-drive (360k), two 5''1/4 disk-drives, one disk-drive and one hard-disk (10Mb, 20Mb)...
On the original disk, the MS-DOS ver 2.0A and Basic v2.0 were delivered.
Presented at the Las-Vegas Comdex in november 1983, the Senior Partner was proposed for 2495$ with Wordstar, Visicalc, PFS-File, PFS-Graph, PFS-Report and GW-Basic.
Panasonic, along with National and Technics were brands owned by the Matsushita japanese group.