--- title: Honeywell DDP-516 categories: - Computers types: - Professional Computer origins: - U.S.A. years: - '1966' params: name: DDP-516 image: /media/museum/photos/honeywell_ddp516_system_1.jpg company: /companies/honeywell company_name: Honeywell specs: - label: NAME value: DDP-516 - label: MANUFACTURER value: Honeywell - label: TYPE value: Professional Computer - label: ORIGIN value: U.S.A. - label: YEAR value: '1966' - label: SPEED value: 1.1 Mhz - label: RAM value: 32 Kb. tabs: - adverts - emulators - links - docs adverts: - title: ADVERT subtitle: '' text: Thanks to [Adrian Wise's website](http://www.sapere.demon.co.uk/computers/honeywell.html) for this picture image: /media/museum/pubs/honneywell_ddp516_pub_1.jpg - title: 'ADVERT #2' subtitle: '' text: Picture courtesy of [The Minicomputer Orphanage](http://www.spies.com/~aek/orphanage.html) website image: /media/museum/pubs/honneywell_ddp516_pub_2.jpg - title: 'ADVERT #3' subtitle: '' text: |- This man seems not to be so happy being more productive...\ Note he uses a paper tape puncher to save newspaper articles. image: /media/museum/pubs/honeywell_pub_1.jpg - title: (FUNNY) PROMOTIONAL PICTURE subtitle: '' text: '... from a promotional brochure' image: /media/museum/pubs/honeywell_ddp516_prm-pic_1.jpg emulators: - title: Series 16 emulator url: http://www.series16.adrianwise.co.uk/emulator/index.html platform: Unix / Linux text: Adrian Wise has written an emulator for H316 and DDP-516 models. links: - title: Adrian Wise's website url: http://www.series16.adrianwise.co.uk/ text: Adrian has gathered some very interesting info about the Serie 16 systems - title: Mike Umbricht's Series 16 pages url: http://users.ids.net/~mikeu/h316/index.shtml text: Mike has a nice page about these systems docs: - title: USER MANUAL url: http://bitsavers.trailing-edge.com/pdf/honeywell/h516/ cover: /media/museum/docs/couvs/honeywell_ddp516_user-manual.jpg text: |- [**USER MANUAL**](http://bitsavers.trailing-edge.com/pdf/honeywell/h516/)written by Honeywell  compiled/archived by Unknown\  type of document : PDF\  source : [www.bitsavers.org](http://www.bitsavers.org) **... READ THE ONLINE VERSION BY CLICKING BELOW :** - title: INSTRUCTION MANUAL url: http://bitsavers.trailing-edge.com/pdf/honeywell/h516/ cover: /media/museum/docs/couvs/honeywell_ddp516_instruction-manual.jpg text: |- [**INSTRUCTION MANUAL**](http://bitsavers.trailing-edge.com/pdf/honeywell/h516/)written by Honeywell  compiled/archived by Unknown\  type of document : PDF\  size : 5.3 MB\  source : [www.bitsavers.org](http://www.bitsavers.org) **... READ THE ONLINE VERSION BY CLICKING BELOW :** - title: INSTALLATION MANUAL url: http://bitsavers.trailing-edge.com/pdf/honeywell/h516/ cover: /media/museum/docs/couvs/honeywell_ddp516_installation-guide_doc.jpg text: |- [**INSTALLATION MANUAL**](http://bitsavers.trailing-edge.com/pdf/honeywell/h516/)written by Honeywell  compiled/archived by Unknown\  type of document : PDF\  size : 3.5 MB\  source : [www.bitsavers.org](http://www.bitsavers.org) **... READ THE ONLINE VERSION BY CLICKING BELOW :** - title: THEORY OF OPERATION AND MAINTENANCE url: http://bitsavers.trailing-edge.com/pdf/honeywell/h516/ cover: /media/museum/docs/couvs/honeywell_ddp516_maintenance_doc.jpg text: |- [**THEORY OF OPERATION AND MAINTENANCE**](http://bitsavers.trailing-edge.com/pdf/honeywell/h516/)written by Honeywell  compiled/archived by Unknown\  type of document : PDF\  size : 11.8 MB\  source : [www.bitsavers.org](http://www.bitsavers.org) **... READ THE ONLINE VERSION BY CLICKING BELOW :** comments: - author: Ledu (France) date: Friday 20th December 2019 text: |- Early 70'', i was working at Eindoven for Philips on a medical project called Medex for Breda hospital using a DDP 516 (my first job).\ I was adding a disk file management system named ISOS (indexed sequential overflow splitting) to Olert 2 operating system. - author: maxra (saxony in germany) date: Thursday 22nd August 2019 text: |- "The best toy I ever found in GDR"\ DDP516 cloned for KRS4200 In the early 70ts or late 60ts somebody has carried some boxes with electronics over the iron boarderline ...\ In the eastern germany, GDR, in german: DDR, the guys of ROBOTRON reengenierd this arpa-net-"router" and build a funny nice toy driven by the operators mostly by a typewriter.\ ( papertape, drums, magnetic-tape also) the best thing was the bootloading process, operated through the binary "console". Not so nice styled like the original, but with stable working buttons, - so if not in cold mornings the buttons were jumping around. But in seconds they were touched back ... Very much fun, when the operating girls searching for the buttons around the mt-device and under the drum-section ... But back to the facts:\ KRS4200 has also rewritten opcodes: all the abbreviations stand for german words. So also was developd a "german speaking" BASIC. In the middle of the 80 were so many "KRS" devices in the GDR, that a special hardware-emulator device emulating KRS was developed for the GDR - PDP11-derivat A6400 (This was the follower-device past KRS in the planing-economy of the GDR.). The result: my moonlanding game (commandline driven) was 10 times faster then on original KRS. Today are only 2 or 3 devices in some museums. One you can find in "technische Sammlungen Dresden". The guys of Halle-Computer-museum have some nice old pic of the device:\ here some with a best looking DDR-folklore-sheet under the console:\ http://www.robotrontechnik.de/bilder/Grossrechner/R4200/R4200_8_k.jpg here is the website with some stuff around KRS4200:\ http://www.robotrontechnik.de/index.htm?/html/computer/r4200.htm - author: Fokko de Jong (Netherlands) date: Saturday 18th June 2016 text: |- Pjhilips bought the Honeywell DDP 416 and 516 and later DDP 316 as successors to the PR8000$ a 24 bit serial processor, used for industrial control purposes. The PR 8000 was developed in France Fontenay o Roses at Philips Research France and had an industial interface called UESI (Unité de Entree et Sortie Industrielle). This interface was adopted to work with the PR9200 series for industrial control purposes.\ Besides industrial control, the P9200 series were used to process data from the Philips non-destructive X-ray material analysis equipment. - author: Ashley (Australia) date: Saturday 31st October 2015 text: I have spoken of this machine many times over the years. I was in the RAF in 1976 at a Telemetry and Command Station. - author: Ian Spencer (Germany) date: Thursday 18th June 2015 text: |- I taught Series 16 at the Honeywell School in Hammersmith between 1970 and 1974 and then at the School in Cologne. The DDP-516 was a great machine.\ I''ve written an Emulator the the H-112 (the 12 bit machine) and may extend it to series 16 one day. - author: Frank Abbing (Netherlands) date: Thursday 29th January 2015 text: |- The DDp-516 was sold as P9200 by Philips. The DDP-416 was renamed\ P9201. I worked as technician for Philips, was it 1969? One of my tasks\ was to stick an aluminium panel with "Philips P9200" on it over the\ Honeywell label. - author: Pierre Mounier-Kuhn (France) date: Saturday 2nd November 2013 text: |- Does anyone know if the Honeywell DDP-516 was sold by Philips as a "P9200" for time-sharing? Or if it could (rather) be used as an teleprocessing interface for Philips mainframes ?\ (See for example http://alexandria.tue.nl/extra1/afstversl/E/379042.pdf, p. 5 $it''s in Dutch but not too difficult to read$)\ Many thanks to whoever may shed light on this question\ Pierre Mounier-Kuhn - author: Brian Rees (Switzerland) date: Friday 13rd April 2012 text: I started with Honeywell in England in 1969 with a 3 month programming course and then remained with the UK company for 3 years before joining Honeywell Bull in Switzerland where I stayed for 3 years too. The 16 bit machines were a delight with much of the donkey work being done in software because hardware was so expensive back then. The typical machine had 4k memory with an ASR. The operating systems were small and fast for their time, the drivers simple but effective. I would live to see an instruction set pamphlet again. - author: Allan (Philadelphia USA) date: Wednesday 12th October 2011 text: |- Nostalgia! I worked on the 516 from about 76 til 80 - happy memories of the octal keyin loader$\ 77000, run, start - paper tape boot with the HISI hard drive. The teletype sounded like a dozen typists. oc_id: 551 source: url: https://web.archive.org/web/20230530145125/http://www.old-computers.com/museum/computer.asp?c=551 date: '2023-05-30' --- The Series 16 computers were originally designed by Computer Control Company, which was then bought by Honeywell in 1966. Series 16 computers were used in a wide range of applications. Many were used in computer control applications, and many educational establishments used them as general purpose computers. The most prominent application of them relates to the origins of the internet. The DDP-516 was used as the basis of "Interface Message Processors" or IMPs that were used to connect the very first networked computers to the ARPANET. The DDP-516, introduced in 1966, and the later H316, which has an identical instruction set, form the core of the Series-16. The DDP-116 is clearly the forerunner of these machines, but seems to have had a limited impact commercially. The DDP-416 appears to be a development that is off the main path for the Series 16. The H716 seems to have come too late to be commercially successful. Thanks to [Adrian Wise](http://www.sapere.demon.co.uk/computers/honeywell.html) for this information. About this computer, **Mr. Richard Pearson** said us: The picture is copied from the programming manual of the second computer that I was associated with, in 1966. The Honeywell DDP-516 was chosen for its high clock speed (aprox. 1.1 MHz) and expandability to 32 K of 16 bit words. Card and paper tape readers were the initial inputs with mag tape drives added as the system development progressed. The final configuration included a hard disc drive the size of a large upright freezer. Assorted special purpose devices were controlled by this state of the art unit. This system was done for NSA by a civilian R&D firm.