Honeywell series 16
The name Honeywell Series 16 (English Honeywell Series 16) refers to a series of minicomputers from Honeywell . They are considered to be the first commercial 16-bit computers.
Bulk
The series 16 computers are an example of a classic accumulator architecture . The computers have an accumulator (A) and a second register (B), which can be used for certain mathematical calculations and number manipulations or as a general buffer, but not as a full second accumulator. Most models also have an index register that is used for memory addressing. Direct, indirect, indexed and indexed-indirect addressing are possible. Direct addressing is not possible. The main memory consists of core memory , in the basic version of the H316 4k * 16 bit. The maximum addressable memory size of the 16 series is 32k * 16 bits (this corresponds to 64 kilobytes ). A number of arithmetic and logical operations are available, depending on the model. The basic version of a series 16 computer has a Teletype ASR33 / 35 telex as input and output unit.
The calculator
- DDP-116 ( 1965 ) First 16-bit computer ever.
- DDP-516 ( 1966 ) Greatly expanded, but downwardly compatible variant of the DDP-116
- DDP-416 ( 1967 ) Greatly simplified version of the DDP-516, hardly any commands, no index register, no B register
- H316 ( 1969 ) More integrated but slower binary compatible reimplementation of the DDP-516
- H716 ( 1972 ) To some features, u. a. a stack pointer , extended version of the DDP-516/316
The DDP-516 and H316 models were the most popular models in the series.
Historical relevance
The DDP-516 was used at the end of the 1960s by the company Bolt, Beranek and Newman (BBN) as the basis for the first Interface Message Processors , the packet switching computers of the ARPANET , from which the Internet emerged at the end of the 1980s. H316s were also used later.
The Prime Computer 200 is binary compatible with the DDP-516 / H316, but has slight additions and higher computing power.
Web links
- http://www.series16.adrianwise.co.uk - English language page about the Series 16
- http://h316.hachti.de - English language website about the operation and restoration of an H316
- http://simh.trailing-edge.com - Bob Supnik's SIMH simulator project: Supports DDP-516 / H316 emulation.
- http://www.theoengel.nl - Theo Engel - Soft emulation of the DDP-516 / H-316 & DDPx16 Pages