website/content/museum/honeywell-ddp-516.md

title, categories, types, origins, years, params

title	categories	types	origins	years	params
Honeywell DDP-516	Computers	Professional Computer	U.S.A.	1966	name image company company_name specs tabs forum_thread adverts emulators links docs oc_id source DDP-516 /media/museum/photos/honeywell_ddp516_system_1.jpg /companies/honeywell Honeywell label value NAME DDP-516 label value MANUFACTURER Honeywell label value TYPE Professional Computer label value ORIGIN U.S.A. label value YEAR 1966 label value SPEED 1.1 Mhz label value RAM 32 Kb. adverts emulators links docs 545 title subtitle text image ADVERT Thanks to [Adrian Wise's website](http://www.sapere.demon.co.uk/computers/honeywell.html) for this picture /media/museum/pubs/honneywell_ddp516_pub_1.jpg title subtitle text image ADVERT #2 Picture courtesy of [The Minicomputer Orphanage](http://www.spies.com/~aek/orphanage.html) website /media/museum/pubs/honneywell_ddp516_pub_2.jpg title subtitle text image ADVERT #3 This man seems not to be so happy being more productive...\ Note he uses a paper tape puncher to save newspaper articles. /media/museum/pubs/honeywell_pub_1.jpg title subtitle text image (FUNNY) PROMOTIONAL PICTURE ... from a promotional brochure /media/museum/pubs/honeywell_ddp516_prm-pic_1.jpg title url platform text Series 16 emulator http://www.series16.adrianwise.co.uk/emulator/index.html Unix / Linux Adrian Wise has written an emulator for H316 and DDP-516 models. title url text Adrian Wise's website http://www.series16.adrianwise.co.uk/ Adrian has gathered some very interesting info about the Serie 16 systems title url text Mike Umbricht's Series 16 pages http://users.ids.net/~mikeu/h316/index.shtml Mike has a nice page about these systems title url cover text USER MANUAL http://bitsavers.trailing-edge.com/pdf/honeywell/h516/ /media/museum/docs/couvs/honeywell_ddp516_user-manual.jpg [**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 url cover text INSTRUCTION MANUAL http://bitsavers.trailing-edge.com/pdf/honeywell/h516/ /media/museum/docs/couvs/honeywell_ddp516_instruction-manual.jpg [**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 url cover text INSTALLATION MANUAL http://bitsavers.trailing-edge.com/pdf/honeywell/h516/ /media/museum/docs/couvs/honeywell_ddp516_installation-guide_doc.jpg [**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 url cover text THEORY OF OPERATION AND MAINTENANCE http://bitsavers.trailing-edge.com/pdf/honeywell/h516/ /media/museum/docs/couvs/honeywell_ddp516_maintenance_doc.jpg [**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 :** 551 url date https://web.archive.org/web/20230530145125/http://www.old-computers.com/museum/computer.asp?c=551 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 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.