| 1969 | Youth laboratory Evoluon is founded at Evoluon which was at that time an exhibition center for science and technology founded by Philips. |
| 197x | The youth laboratory moves to a new location at the Lindenlaan 11 in Eindhoven. |
| 1973/05/03 | The DJOE foundation is founded. |
| 1974 | The youth laboratory Evoluon is transferred to the DJOE foundation. |
| 1974/08 | Nico Schenkeveld is hired by DJOE as coordinator of the youth laboratory. |
| 1975/10 | Jan van der Horst joins DJOE as counselor. |
| 1975 | Marco Bleekrode starts first DJOE microprocessor experiments using a 2650 microprocessor. |
| 1976/??/?? | Jurjen Bos becomes a member of DJOE and receives membership number 11. After his membership card gets lost in the laundry, he is reassigned membership number 67. His main interest: electronics. |
| 1977/12/03 | Geert Jan de Groot becomes a member of DJOE and receives membership number 69. His main interest: digital electronics. |
| 1979/08/23 | Niels Ferguson becomes a member of DJOE and receives membership number 136. After returning from a stay in Scotland he gets reassigned membership number 236. His main interest: electronics. |
| 1979/10/04 | Luc Rooijakkers becomes a member of DJOE and receives membership number 144. His main interest: electronics. |
| 1980/07/?? | Jelte van der Hoek becomes a member of DJOE and receives membership number 181. His main interest: electronics. |
| 1981 | The first EXIDY arrives. Demand for the machine is so high that sign-in lists are quickly introduced. |
| 1982/03/01 | DJOE moves to a new location at the Frederiklaan 163, the other end of the building complex that includes the old location. |
| 1983/02 | Geert Jan starts working on a power supply for an as yet unnamed Z80 computer, intended to alleviate the heavy demand for EXIDY programming time. |
| 1983/03 | The unnamed Z80 computer gets a name: the ORDINATOR. The ORD-GROUP is formed. |
| 1983/04/05 | CPU board is working with a small ROM-only diagnostic program; its listing triumphantly calls it "babies first teeth". |
| 1983/05/21 | DJOE has its yearly open house day. The ORDINATOR crew continues working on its project throughout the day and calls it a 'live performance'; this became a running joke in later years... |
| 1983/09/08 | 32K DRAM board is half-working (16K), serial interface board is still being worked on. |
| 1983/11 | 32K DRAM board still has occasional problems; parallel I/O board is halfway working, first video board is working but needs finishing. There is talk of a larger DRAM board, second video board, CPU extension board and a floppy controller board. Also DIAMOND is working, we have a modified BASIC, the EXIDY Development Pac has been adapted to the ORDINATOR. |
| 1983/12/10 | The ORDINATOR bus layout is 'nailed to the wall' (well, the front of the system, really). |
| 1984/01/13 | 32K DRAM board has been rebuilt and is now working satisfactory, serial I/O board has been finished by Luc and Jelte, bad IC sockets have been replaced on video board, CPU extension needs 8K EPROMs, temporary I/O board has acquired a cassette interface. |
| 1984/02 | Keyboard controller board gets finished, software is being written. |
| 1984/05/11 | Parallel board and keyboard board are complete, 2nd RAM board now contains 16K with space for another 16K (we now have a whopping 48K total); 2nd video board nearly complete. |
| 1984/?? | Another open house day. The ORDINATOR runs a small RAM-only two-user BASIC system. |
| 1984/?? | Long-awaited floppy drives arrive. We spend the summer frantically building a controller board and porting CP/M from the EXIDY. |
| 1984/07/16 | Creation date of BOOT.ASM. |
| 1984/07/27 | 128K DRAM board finished (currently 64K installed); floppy controller board is working; we have run our first CP/M system. |
| 1984/09/09 | Single-user EXBASIC boot floppy for the ORDINATOR becomes available for general use (i.e., outside of the ORD-GROUP). |
| 1984/09/29 | Second EXIDY gets compatible floppy drives and ORDINATOR BIOS gets ported to the EXIDY. |
| 1984/09/15 | Luc starts working on the TS system software. |
| 1985/02/18 | Jurjen lends us 64K of DRAM chips to replace the bad ones on the 128K RAM board. |
| 1985/02/27 | TS now totals 6921 lines of assembly source and requires 15 minutes for a complete assembly run. |
| 1985/03 | TS system released for general use. |
| 1985/04/01 | Jurjen lends us another 64K of DRAM chips for the 128K RAM board. |
| 1985/03/15 | Interface byte is invented, probably for the BOOT command; BOOT.ASM gets EXIDY support a day later. |
| 1985/07/03 | TELEVERKET support gets added to BOOT.ASM. |
| 1985/07/08 | Creation of ORD-GROUP supported version of CPM.LIB. |
| 1985/08 | TS gets its own virtual address space. |
| 1985/09/25 | Creation of OG.DOC overview. |
| 1985/11/02 | Consolidation of TS system call interface into SYS.LIB. |
| 1986/02/16 | The ORDINATOR project wins the national competition for young scientists and gets selected as the Dutch entry for the 18th European Contest for Young Scientists and Inventors in Oslo. |
| 1986/04/09 | Final version of the book "THE ORDINATOR PROJECT" to be sent off for translation into English. |
| 1986/04/05 | Creation of DISKSERVER I/O port document SVIO.DOC. |
| 1986/05/29 | The ORDINATOR project wins the third prize in the 18th European Contest for Young Scientists and Inventors in Oslo. |
| 1987/03/11 | Creation of LAB.LIB, LAN ROM monitor interface constants. C |
| 1987/03/11 | Listing of LANMES.LIB, declaration of LAN host interface constants. |
| 1987/03/21 | Listing of NET.C, interface for the LAN processor. |
| 1987/08 | ORDINATOR gets 256K RAM board, bringing the total system RAM to a whopping 384K. |
| 1988/06/03 | Last version of DIAMOND, version 2.1. |
| 1988/10/07 | Creation of NET.ASM, the first CP/M program to use the LAN processor. |
| 1988/12/16 | Creation of SVRPRO.DOC, the network server protocol, and SRVCON.LIB, a declaration of its constants. |
| 1989/07/08 | DISKSERVER support gets added to BOOT.ASM. |
| 1989/12 | Development of DISKLESS. |
| 1990/01 | Programming team containing Jelte, Niels, Jurjen and Hans enters the world programming championship. |
| 1990/02/24 | Creation of CLCHSET.ASM, character set ROM for DISKLESS. |
| 1990/05/12 | Last FILES listing created by Maurits and Erik. |
| 1990/05/26 | Print of T0S1.DOC, documenting the DJOE boot sector format. |
| 1990/08/22 | First and only ORDGROUP newsletter. |
| 1990/08/22 | The ORDINATOR gets mentions on USENET newsgroup comp.os.cpm. |
| 1990/11/08 | The ORDINATOR hasn't been used much for several weeks now. |
| 1992/01/01 | Because of financial troubles due to lack of sponsoring, Nico has to leave DJOE as coordinator. Jan takes over the role. |
| 199? | The ORDINATOR hardware gets moved to the basement of DJOE. The floppy box containing most of our software gets lost. |
| 2000/12/27 | First ORD-GROUP reunion with Geert Jan, Luc, Niels, Hans, Corné, Nico and Jan. |
| 2002/10 |
Attempted revival of ORDINATOR fails (probably bad power supply).
DISKSERVER EPROM programmer is used to upload ORDINATOR ROMs. ORDINATOR emulator version 0.1 is distributed via the djoe-alumni mailing list. |
| 2004/01 | Yearly open house day of DJOE results in another ORD-GROUP reunion with Geert Jan, Luc, Niels, Jelte, Hans, Corné and Jan. Talks about archiving result in the idea of a website. |
| 2004/01/22 | The ORDINATOR and ORD-GROUP websites go live. |
| 2004/02/28 | The first edition of the ORD-GROUP ARCHIVE cd-rom is produced, dedicated to the wedding of Niels and Denise. |
| 2011/02/24 | Jan van der Horst dies. |
