TWIN documentation

The ECA system did not come with any documentation, unfortunately.

The HM system came with a box full of hard-copy documentation, the most relevant parts of which are now digitised and preserved, as indicated by the hyperlinks below. If you are interested in a document that has not been digitized yet, then drop me a note (see the link at the bottom of this page).

On bitsavers.org you can find a collection of documentation for the Tektronix 8002/8002A. This includes an Operator’s Guide and Hardware Reference Manual for the Millennium Universal One, and several sales brochures for the 8002 and Universal One.

There is also a TekWiki, a wiki on Tektronix, which has a nice section on the 8001, 8002 and 8002A sister machines.

All documents are in English, unless otherwise noted.

From the HM collection

This collection contains a large number of documents. Some are official Signetics manuals, while other appear to be internal memos or support bulletins. Of particular interest is a series of TWIN technical notes.

Manuals

Manual – Signetics TWIN Operator’s Guide, SDOS 2.0. Document number TW09003000, 1976, Signetics, approx. 150 pages.

Manual – Signetics TWIN Operator’s Guide, SDOS 3.0. Document number TW09003000. 1979-01-03 total revision to SDOS 3.0; 1980-01-06 corrections. Approx. 150 pages.

Manual – Signetics TWIN testware instrument System Reference. Document number TW09004000. October 1976, Signetics, approx. 130 pages.

Manual – Signetics TWIN high speed master/slave memory, supplement to reference manual. Document number TW140000012. 1979, 12 pages + 3 pages.

Manual errata – Slave 2650A supplement, Revision A. 1 page.
replaces page 17.

Manual – Signetics TWIN Real Time Hardware Analyzer, supplement to operator’s guide. Document number TW14000013. 1979, 17 pages + 3 pages.

Manual – Signetics TWIN real time hardware analyzer, supplement to reference manual. Document number TW140000019. 1979, 35 pages + 3 pages.

Manual – Signetics TWIN Testware Instrument 2650 Assembly Language. Document number TW09005000. May 1976, Signetics, 40 pages.

Manual – Signetics TWIN 2650 Relocatable Assembler Manual. 1979-01-15 initial version, 1979-04-01 Revision A, Signetics, 90 pages + 7 pages.

Manual – 2650 PASCAL. N.V. Philips Natuurkundig Laboratorium (Natlab).
Bundle contains three documents:

Document 1/3. 1981-01-07, 17 pages.
Implementation of Pascal on 2650 systems.
Document 2/3. Unknown date, 13 pages.
Description of TWIN Pascal.
Document 3/3. 1981-01-22, 23 pages.
TWIN Pascal compiler.

2650 Reference Guide. November 1978.
Fold-out pocket reference cards.

Manual – 2650 Microprocessor User’s Manual (update 3). Unknown date, Signetics, 12 pages.

Manual – Signetics 2650 Microprocessor Hardware Specifications. April 1975, Signetics, 136 pages.

Manual – Signetics 2650 Microprocessor Assembler Language. April 1975, Signetics, 44 pages.

Manual – Signetics 2650 Microprocessor Software Simulator. April 1975, Signetics, 36 pages.

Manual – Signetics 2650 Microprocessor System Application Notes.
A bundle of well-known application notes:
AS50 – Serial Input/Output
AS51 – Bit and Byte testing procedues
AS52 – General delay routines
AS53 – Binary arithmetic routines
AS54 – Conversion routines
AS55 – Fixed point decimal arithmetic routines
MP53 – Address and data bus interfacing techniques
MP54 – 2650 input/output structures and interfaces
SP50 – 2650 evaluation printed circuit board level system (PC1001), 2 copies
SP53 – Simulator, version 1.2
SP54 – Support software for use with GE’s Mark III timesharing system
SP55 – The ABC Adaptable Board Computer
SS50 – PIPBUG
SS51 – Absolute Object Format
SS51 – Absolute Object Format, revision 1
MP51 – 2650 initialisation
MP52 – Low cost clock generator circuits

Technical Note 094 – 2650 BCD floating point routines. 1987-08-31, Philips / Signetics, 15 pages.

TWIN technical notes series

TWIN Technical Note General. GN001. 1976-10-26, 1 page.
Announcing technical notes, general / hardware / software.

TWIN Technical Note General. GN002. 1976-12-13, 1 page.
Update TWIN Operators Guide, errata sheets for SDOS version 2.0

TWIN Technical Note General. GN003. Unknown date, 3 pages.
Announcing new products for TWIN.

TWIN Technical Note General. GN004. 1979-11-23, 1 page.
SDOS 4.0 and memory mapping.

TWIN Technical Note General. GN005. Unknown date, 2 pages.
Disk errors, how to work around errors in source files.

TWIN Technical Note General. GN006. 1980-07-16, 1 page.
SDOS 4.0 manual updates, replacement pages with corrections marked.

TWIN Technical Note General. GN007. 1982-06-29, 3 pages.
Announcing availability of Basic and Pascal languages.

TWIN Technical Note Hardware. HW001. 1977-03-21, 1 page.
Corrections to handling the Sense and Flag lines when tracing.

TWIN Technical Note Hardware. HW002. Unknown date, 2 pages.
Setting terminal jumpers for automatic scrolling.

TWIN Technical Note Hardware. HW003. 1979-01-12, 24 pages.
Modifications and software for programming EPROMS 2704/8 and 2716.

TWIN Technical Note Hardware. HW003A. 1979-05-16, 1 page.
Corrections to HW003.

TWIN Technical Note Hardware. HW004. 1980-01-25, 1 page.
Noise immunity with new slave card 2650A.

TWIN Technical Note Hardware. HW005. 1980-08-21, 1 page.
Corrections to handling the Sense and Flag lines when tracing with new slave card 2650A.

TWIN Technical Note Hardware. HW006. 1980-08-21, 1 page.
Baud rate Master CPU PCB, set to 2400.

TWIN Technical Note Hardware. HW007. 1980-11-03, 3 pages.
Hang-ups when using SDOS 4.0.

TWIN Technical Note Hardware. HW008. 1982-03-12, 11 pages.
Modifications and software for programming 2732 and 2732A EPROMs.

TWIN Technical Note Hardware. HW009. 1982-04-08, 5 pages.
Adding a second line printer.

TWIN Technical Note Software. SW002 (supersedes SW001). 1976-11-29, 9 pages.
SDOS 2.0, changes since SDOS 1.0.

TWIN Technical Note Software. SW003. 1976-12-13, 1 page.
Assembling large programs.

TWIN Technical Note Software. SW004. 1977-01-17, 2 pages.
Adding HSPT reader Digitronics 2540.

TWIN Technical Note Software. SW005. 1979-02-14, 30 pages.
8048 Assembler on TWIN.

TWIN Technical Note Software. SW006. 1979-02-19, 3 pages.
Generate Intel format object code.

TWIN Technical Note Software. SW007. 1979-02-22, 1 page.
Recovering files after malfunctions during editing.

TWIN Technical Note Software. SW008. 1980-02-07, 1 page.
Rubout function and SDOS 4.0 (for Minibee II terminal).

TWIN Technical Note Software. SW008A. 1980-07-16, 3 pages.
Rubout function and Correction to SW008.

TWIN Technical Note Software. SW009. 1980-08-18, 5 pages.
Data communications between TWIN and PMDS (Philips Microcomputer Development System).

Memos and bulletins

Internal Memo – Service of TWIN-system. 1982-07-09; 1 page.
Change in service and maintenance activities of TWIN-systems.

Attachment: list of spare parts.1980-09-01, 2 pages.
12NC numbers for TWIN spare parts.
Attachment: TWIN Technical Note General. GN007. 1982-06-29, 3 pages.
Announcing availability of Basic and Pascal languages.

Internal Memo – Service of TWIN-system. 1982-07-09, 1 page.
Change in service and maintenance activities of TWIN-systems

Internal Memo – TWIN Service. 1979-09-20, 1 page.
TWIN with serial #177 maintenance contract; 2 copies.

Circular Letter. 1979-08-03, 5 pages.
TWIN service options and repair price list.

Circular Letter – IC Newsletter. 1978-08-30, 1 page.
Shipments of first Instructor 50 units.

Circular Letter – IC Newsletter. 1978-04-21, 3 pages.
Assembler for 8X300 on IBM/370 computer.

Circular Letter. 1977-08-26, 1 page.
Announcing availability of two new IO cables.

Circular Letter – IC Newsletter. 1977-06-07, 5 pages.
Preliminary specifications of what would become the Instructor 50

Circular Letter – IC Newsletter. 1977-04-14, 2 pages.
Information on in-house training courses.

Circular Letter – IC Newsletter. 1977-02-15, 5 pages.
Corrections to Circular Letter of 1977-01-10

Circular Letter – procedures to access the 2650 and 8X300 microprocessor support programs. 1977-01-10, 19 pages.
Information on using the in-house IBM/370 computer.

Circular Letter, 1976-08-20, 2 pages.
Instructions on making BPNF tapes for PROM programming.

From the HM collection

Manuals

TWIN technical notes series

Memos and bulletins

Other documents