| HP-85 |
/media/museum/photos/hp_85_system_1.jpg |
/companies/hewlett-packard |
Hewlett Packard |
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| MANUFACTURER |
Hewlett Packard |
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| TYPE |
Professional Computer |
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| ORIGIN |
U.S.A. |
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| END OF PRODUCTION |
1984 |
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| BUILT IN LANGUAGE |
HP Basic interpreter |
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| KEYBOARD |
Full stroke 93 keys with numeric keypad and user definable keys |
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| CPU |
'Capricorn' custom HP 8-bit CPU |
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| SPEED |
0.625 MHz |
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| CO-PROCESSOR |
Custom HP I/O circuits |
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| RAM |
16 KB (14.5 KB for the user, expandable to 32 KB) |
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| TEXT MODES |
32 chars x 16 lines |
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| GRAPHIC MODES |
256 x 192 dots |
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| COLORS |
Monochrome |
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| SOUND |
Tone Generator |
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| I/O PORTS |
Four I/O Ports |
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| BUILT IN MEDIA |
Built-in DC 100 cardridge drive |
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| OS |
Built-in BASIC language. Optional CP/M O.S. with external FD/HD unit |
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| POWER SUPPLY |
Built-in power supply unit 110V - 240V switchable |
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| PERIPHERALS |
Various extension cards: GP-IB, Serial, FDD controller, I/O routines, Parallel, BASIC extensions |
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| TOP VIEW |
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/media/museum/photos/hp_85_topview_1.jpg |
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| RIGHT VIEW |
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/media/museum/photos/hp_85_frontview_1.jpg |
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| IN USE |
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After a self-test was performed, the character set in ROM is displayed and printed. |
/media/museum/photos/hp_85_inuse_1.jpg |
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| REAR |
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The expansions housing is here fitted with:\
**(1)** a ROM drawer module\
**(2)** a 128 KB RAM module\
**(3)** a Serial interface module
Lot of expansion modules were developped for the HP-85. |
/media/museum/photos/hp_85_back_1.jpg |
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| ROM DRAWER MODULES |
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Each ROM module could receive up to 6 ROM chips used for I/O or peripherals management, or offering advanced BASIC routines.\
The ROM chips pictured are:\
**(1)** General I/O routines\
**(2)** Statistic routines\
**(3)** Advanced programmer routines\
**(4)** Printer-plotter management |
/media/museum/photos/hp_85_romdrawer_1.jpg |
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| PRINTER & DC100 DRIVE |
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The thermal printer operates in both alphanumeric (128 ASCII character set) and graphics mode. The full character set can be underlined. The printer speed is 2 lines per second.
Cardridge rewind time is 29 seconds, search speed is 60 inches per second, data transfer speed is 10 inches per second and the tape length is 141 feet.\
When turned on, the HP 85 looks for a program called "AUTOST" on the tape and executes it if it's found. |
/media/museum/photos/hp_85_printer_1.jpg |
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| PRINTER CLOSE-UP |
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Notice the contrast ajustment **(1)** and... the genuine HP roll of thermal paper! |
/media/museum/photos/hp_85_printer_2.jpg |
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| A DC100 CARTRIDGE |
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Each cardridge can hold 780 program records consisting of 192 KB each, or 850 data records of 210 KB. There can be a maximum of 42 named files per cardridge. |
/media/museum/photos/hp_85_dc100cartridge_1.jpg |
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| MANUALS SET |
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This is a part of manuals delivered with the HP-85. Each of them is very clear and detailed. |
/media/museum/photos/hp_85_manualset_1.jpg |
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| INSIDE |
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Electronic part of the HP-85 is reliable, clear and really well designed. We can consider it as the most accomplished design of the computer industry of the time.
**(1)** Video board\
**(2)** Power regulation board\
**(3)** Printer mechanism\
**(4)** Logic board |
/media/museum/photos/hp_85_inside_1.jpg |
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| LOGIC BOARD |
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This board only contains main components of the computer. All of the secondary and passive components are located in video and power boards.
**(1)** Expansion connectors cable\
**(2)** Power board cable\
**(3)** Printer - tape drive cable\
**(4)** 16 KB RAM memory chips\
**(5)** Processor and HP custom I/O chips\
**(6)** 32 KB ROM chips\
**(7)** Video board cable |
/media/museum/photos/hp_85_logicboard_1.jpg |
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| PRINTER UNIT |
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Printer and tape drive unit.
Notice the surrounded signatures. One founds inside the machine about 15 different quality control signatures of the guy who built it. |
/media/museum/photos/hp_85_printer_3.jpg |
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| COMPLETE SYSTEM |
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... with plotter, printer and double disk-drive unit |
/media/museum/photos/hp_85_complete-system.jpg |
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| PROMOTIONAL PICT. |
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The HP-150 was widely used in industry by engineers and scientists. |
/media/museum/pubs/hp_85_prmpict_1.jpg |
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| U.S. ADVERT (1980) |
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Advert says:
Imagine the new world that would unfold before you if you had a powerful , portable, completely integrated computer system at your personal disposal. And at an affordable price. That's exactly what Hewlett-Packard has just created.\
At the lab, on your desk or in your study this 20-pound, self-contained system provides professional computing power when and where you need it. That means no more waiting for data to be remotely processed and returned. |
/media/museum/pubs/hp_85_pub_1.jpg |
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| FRENCH ADVERT (JAN. 1982) |
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"List your technical requirements, Hewlett-Packard is ready to answer" |
/media/museum/pubs/hp_hp85_pub_enoncez.jpg |
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| SERIAL INTERFACE |
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/media/museum/hardware/hp_85_serialinterf_1.jpg |
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| HPIB INTERFACE |
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/media/museum/hardware/hp_85_hpibinterf_1.jpg |
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| 128 KB RAM MODULE |
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This module only can be used as a virtual disk. |
/media/museum/hardware/hp_85_128kbinterf_1.jpg |
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| CARRYING CASE |
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/media/museum/hardware/hp_hp85_carrying-case_1.jpg |
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| ASSEMBLER MODULE |
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/media/museum/software/hp_85_assemblermodule_s1.jpg |
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| HP Series 80 Web Site |
http://www.series80.org/ |
Nice website dedicated to HP Series 80 computers (manuals, programs, ROMs, articles, accessories, etc.). |
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| Jules Pitsker (USA) |
Saturday 12th March 2011 |
I had a poster of one on my closet door. It featured the HP-85 in the foreground, superimposed on an outer space background. A comet-tail animation came from the rear of the machine, as if it was coming right at you.\
There was also an image of the Capricornus zodiac symbol, for whatever reason.\
The poster was given to me by a friend of the family, who happened to be a chemist for the Nabisco company, circa 1981. Even though I owned a C-64 from 1982-1986, my childhood perception was that the HP-85 must have been more of a ''real'' computer. |
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| Pdubu (Camano Island, WA) |
Friday 18th June 2010 |
First computer I ever used. My high school got four of them when HP put a small plant in our town. 20 students, 4 machines, 50 minutes, not a lot of time for debugging our BASIC snowmen and other simple programs since most all of us where hunt-and-peck keyboarders. Good little machines though. Simple, only one cord and no need for printer ink. And as small as it was, that little amber screen wasn''t difficult to read (then again I was using my younger eyes). |
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| RENALDO (Seattle, WA) |
Friday 25th July 2003 |
When I went to the Byte Shop in Seattle, WA in 1980 to buy a Compucolor 2 they were closing out on (Thank God I bought an Atari 800!). They had some HP-85's. I was really impressed by their capabilities and I drooled over buying one, I couldn't afford them at $5000 (Atari's went for $1200). While I was there a well dressed gentleman came in and inquired about computers for his business. He was shown the HP-85 and said he would take two of them. He pulled out his AE card and the salesman looked very pleased with his sale. |
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| wesmorgan1 (USA ) |
Tuesday 30th August 2011 |
I used the HP-85 back in the early 1980s at the University of Kentucky. The College of Engineering Library had 4-5 of these machines, and I found them fascinating. As a matter of fact, I just found my archive tape of HP-85 code. It''s a pity that I don''t have anything on which to read the tape...*sigh* |
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| Johnny Bjoern Rasmussen (Denmark) |
Thursday 25th March 2010 |
For info and manuals go to http://www.series80.org/ |
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| Chris Gegg (Charlotte NC) |
Thursday 29th April 2004 |
If anyone has an HP85 they want to sell, or even just the manuals, I am interested. Heck, even if you could just scan the manuals and send as a PDF.\
Maybe someone knows where I can see the manuals online.\
Any help would be appreciated.\
Thanks,\
Chris\
gegg@alumni.wfu.edu |
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| BRN (Somewhere in Cyberspace) |
Saturday 7th February 2004 |
How could anyone see anything very well on such a small monitor?! |
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| Franz Vida (Germany) |
Friday 7th November 2003 |
I can unsecure HP 85 basic programs without password. If someone is interested please let me know. |
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| joel (montpellier) |
Monday 19th May 2003 |
hello, i have just fogotten to send my mail, in the last message !\
bye |
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| joel (montpellier) |
Monday 19th May 2003 |
i have just buy one of this computer. :-)\
it is a very nice computer.\
i like it !\
is someone have some programms, for sell, or want to give it to someone, please send me a mail.\
thanks, joel |
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| michael (ky) |
Wednesday 12th March 2003 |
I saw one at a indoor flea market for $20. Only one I've seen in person wish I had bought it now :( |
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