Dueling HP's: 1350A vs 1351A

2K versus 8K of vector memory. Each vector or letter displayed takes one memory location. There is also a minor difference in how they clip the X axis (1022 points). More specifically, there is a difference in how they deal with end points that are outside the displayable area (which generally causes a character to be plotted rather than a vector ending off the screen). Generator versus translator, no difference, its just terminology. Both devices take HPIB commands in a simple ASCII protocol and generate vector displays. The refresh rates, drawing speeds, and even character generator ROMs are the same. Both generate (nearly) 1K by 1K vector graphics displays. There are some photos of HP 1350 vector displays at: http://www.infionline.net/~wtnewton/oldcomp/hp2100/HP_photos.html The small rack-mounted CRT displays are actually generated by 12555 dual D/A converters, not the HP1350. Photos 7 and 9 are from an HP1350 on a Tektronics 620 display. ----- Original Message ----- From: "Richard" <legalize at xmission.com> To: <cctalk at classiccmp.org> Sent: Wednesday, April 19, 2006 12:53 AM Subject: Dueling HP's: 1350A vs 1351A