ARRA is developed at MC in Amsterdam by Carel Schouten and Bram Loopstra in a 4 year period under supervision of van Wijngaarden to facilitate mathematical calculations. It was relais based.

Willem van der Poel designs the ARCO (nickname Testudo) relais based computer at PTT. Initial design as thesis at the TU Delft in 1947.

The ARRA II, a redesigned ARRA by Gerrit Blaauw at MC with Electron Tubes and drum memory
Programming by Edsger Dijkstra

PTERA Electron Tubes and relais
by Kosten/ Van der Poel PTT

FERTA version of the ARRA II (slightly modified) for Fokker, built by MC

ARMAC with Electron Tubes, core memory and drum memory
Developed at MC

PETER Philips Natlab Electron tubes, fast core memory
designed by Heijn/Slob,
programming by Arie Duijvestijn

ZEBRA PTT, Dr Neher Lab Electron tubes, transistors
designed by Van der Poel
Manufactured at Stantec, UK

X1 Designed at MC Transistors based
Manufactured at Electrologica, Rijswijk
First ALGOL compiler bij Dijkstra/Zonneveld.

TRANSDECO Philips CAB Transistor based designed by Jan Scholten

PASCAL/STEVIN Philips Natlab
Electron tubes, transistors
designed by Heijn/Selman
One of the fastest computers of this period.
Used at the Philips Rekencentrum in Eindhoven

PASCAL/STEVIN Philips Natlab Electron tubes, transistors
designed by Heijn/Selman
One of the fastest computers Used at the Philips Rekencentrum Eindhoven

Mona LISA Successor of TRANSDECO
built with logic sub-assemblies from Philips CAB

P3 Philips Natlab
Transistor only version of PASCAL
Design Heijn/ Selman
Used at MBLE (Philips Research Brussel)

Friden 6010 business computer with Transistors
Based upon the Mona LISA from Philips CAB

Scholten PII
Educational design by Jan Scholten for the Philips International Institute, Eindhoven.

X8 Electrologica Advanced interrupt logic
Edsger Dijkstra developed the THE multiprogramming system for the X8
Console design by Wim Rietveld

Philips P1075 Scalable mainframe, similar to IBM 360, but not compatible
Philips Electrologica/Data Systems Apeldoorn

Philips P1100 Mainframe
Philips Electrologica/ Data Systems Apeldoorn

Philips P1200 mainframe
The P1200 can be upgraded to the Universal Instruction Set, enabling COBOL, FORTRAN and ALGOL applications.

Philips P1400 Mainframe
Philips Electrologica/ Data Systems Apeldoorn

The Philips P880 is a downsized P1000, using the same style DTL technology boards.
Minicomputer for scientific and industrial applications. But not succesful, succeeded by P800 series.
Designed in France and commissioned by Philips Data Systems, Apeldoorn.

Philips P350 Office computer
Phocal language Philips Data Systems

The P850 is part of Philips P800 series
Minicomputer for scientific and industrial applications (P850, P855, P860)
Designed in France
Philips Data Systems

The P855 is part of Philips P800 series
Minicomputer for scientific and industrial applications (P850, P855M, P860M)
Designed in France Philips Data Systems

The P860 is part of Philips P800 series Minicomputer
scientific and industrial applications (P850, P855, P860)
Designed in France
Philips Data Systems

Philips P350
Office computer
Programming in the Phocal assembly language.
Philips Data Systems, designed in Siegen-Weidenau.

Philips P430, a renamed Unidata 7.720
The Unidata computer company with Philips participation is dissolved in 1975 (after being founded in 1972 by Philips, Siemens, CII from France). Philips Data Systems continues. The Unidata 7.720 is the only computer which is actually developed for the consortium (by Philips in Apeldoorn).

Exidy Sourcerer Compudata Microcomputer
Used in Teleac computer course

Universal Microprocessor Development System with Philips/Signetics P851 single chip 16bit CPU
Used for crossdevelopment of microprocessor applications; also used for the control of CD mastering systems.

Holborn 9100 Business system, system unit with maximal 4 terminals
Operating system: HOS (Holborn Operating System, running from ROM)
Scaled down version is the 7100, for 2 users
Designed in Enschede by former UT student Hans Polak.
Cabinet by Vos Design

Philips P2000T Home computer with teletext and micro-cassette data storage

The Philips P2000M is a P2000T with a monitor unit with built-in dual floppy disk drives.

Holborn 6100 Lower cost Business system
Design: Hans Polak and Vos Industrial design for cabinet.

Microcomputer with CP/M, used for professional applications.

Aster CT-80 Home computer Used at schools

Sirex PC clone with Intel 8088
Ex UT student Herbert Silderhuis
Assembled in Enschede

CHE-1 Self assembly Home computer.
Apple II Plus clone Eindhoven (Natlab) design.

From the Holborn 6500 only prototypes have been built; 6100 have been upgraded to 6500 by Greenock

Philips P2000C Professional Micro computer with 2xZ80
CP/M based and USCD Pascal
Can also be used for industrial applications with HP-IB (IEEE488) bus.

Tulip System I PC clone with Intel 8086
Compudata Systems Den Bosch

Philips MSX VG-8000 with Z80

Aesthedes Design Workstation Motorola 68000 (8x) based.
Design by: Claessens Product Consultants, Hilversum

Philips P3100 PC clone with Intel 8088
Designed in Montreal

Philips :YES Personal Computer
Intel 80186 with DOS/GEM

Philips MSX2 NMS8245 Designed in Japan by NEC

Philips P3200 PC AT clone/80286 Designed in Montreal