The Australian Computer Society (ACS) was formed 50 years ago, when the various state computer societies joined forces.

To mark the occasion, the ACS has initiated a heritage project to honour the many individuals who have contributed to the growth of the ICT profession in Australia.

At the heart of the project is a history of computing in Australia. It is not just a history of the ACS, but the history of a profession.

Australia has the longest computing history of any country, excepting the US and the UK, and CSIRAC in the Museum of Victoria is the oldest computer still in existence.

Chapter 34: David Hartley, Bill Gates and the one that got away

There is one early Australian software entrepreneur who really stands out. He did a lot, but he could have done so much more. It is a little known tale of what might have been.

David Hartley (not to be confused with the British computer scientist of the same name) started his working life in 1966 as a civil engineer with Brisbane City Council. His work later took him to Namibia in southern Africa, where he was introduced to computing while conducting mathematical modelling of rainfall in the vast Okavango river basin, using FORTRAN on an ICT 1500.

When he returned to Australia he decided that computing was more interesting than civil engineering. He started Hartley Computer in Brisbane in 1974 to develop software for the accounting profession, on the rationale that accounting could be easily computerised but that many in the profession did not realise that.

His first effort was to write a program in BASIC called AANCS (Australian Accountants Number Crunching System) to run on a Hewlett Packard cassette based desktop calculator. But the HP machine had only a one line display, and Hartley was approached by Wang to rewrite the program to run on a Wang 2200, the company’s newly popular small minicomputer, which had a full display screen, and ran off floppy disks. He called the Wang program HAPAS (HArtley Professional Accountants’ System).

The new software was very successful – it was the only software in Australia designed specifically for small accounting practices. Hartley also designed SHEILA (System by Hartley for Entirely Integrated Ledger Accounting) for larger organisations. The venture included building hardware (the Hartley 3900 – see Chapter 22) and an operating system. Both the hardware and the software were very innovative. In Hartley’s words:

“The operating system was called RT86, a ‘true pre-emptive multi-user multi-tasking operating system for the 8086 chip. It was launched in 1980, 15 years before Windows PCs had that capability.

“Hartley Computer was one of the first mini/PC computer vertical market successes in the world, with ultimately 250 staff and 3,000 sites in seven countries. In the process I became known as ‘the father of computer client accounting’, and we won several awards. The success was killed by hubris and a messy divorce. Big lessons, only partly learned at the time.”

The company sold thousands of copies of HAPAS in Australia in the 1970s and early 1980s. With the improvements in price performance of imported minicomputers Hartley moved out of hardware manufacturing and concentrated on software. At one stage Hartley was the largest global customer for Wang minicomputers.

How history could have been very different

In 1979, Hartley expanded the business to the US, setting up in Denver Colorado. The US business was run by Roger Brownlee, who built the operation there to over 100 customers. But financial problems developed as Hartley diverted more and more funding into the development of his hardware platform.

The US business was closed, much to Hartley’s regret. He believes that had it continued the entire history of the microcomputer industry could have been very different:

“When IBM launched the IBM PC it decided to use the Intel 8088 (an 8-bit external bus sister chip of the full 16 bit 8086 we had chosen). IBM asked Intel for an introduction to someone who could supply an operating system. Intel knew of our work in Australia, but did not make the introduction because we were not in the USA.

“Instead they introduced IBM to Bill Gates, who did not even have any Intel chip based software at the time. Bill was smart enough to rush out and buy what became MS-DOS for $50,000 [see Chapter 24]. And so MS-DOS was inflicted upon the world – a huge cost compared to what could have been with our far superior RT86, and Microsoft was on its way.”

In 1982, Hartley Computer was put into receivership by the Queensland Government. Hartley says this was under a technicality via a loan guarantee, “even though there was no commercial reason or need as business was booming with just some cash flow issues during financial year end, exacerbated by a cargo handlers strike in Sydney, which the bank understood.”

David Hartley believes that he was being punished for not having donated to the Joh Bjelke-Petersen Foundation, a kickback vehicle for the corrupt Queensland Government. Embittered by the experience, Hartley moved to Hong Kong in 1985 and founded Banksia Information Technology (BIT), which designed and manufactured IT gear, including PCs, modems, and an early voice-activated fax/phone switch, called PHAXswitch.

He later returned to Australia and developed HAPAS Mark II. In 1993, he went to the United Kingdom and with some colleagues set up Hartley Computer UK, which gained over 1000 accounting practice clients ranging from sole practitioners to PricewaterhouseCoopers. In 1999, the company was sold to British accounting software vendor Sage, and Hartley moved to the Caribbean. He still lives there today, where he is a self-described ‘Caribbean Blockchain Evangelist’, pursuing initiatives using the new blockchain technology, including work on accounting systems for what he believes to be the new age of blockchain business.

Hartley was admitted to the Pearcey Hall of Fame in its first year in 2003 for ‘distinguished lifetime achievement and contribution to the development and growth of the information technology profession, research and industry’.

Veteran ICT journalist Graeme Philipson is researching and writing the Heritage Project book, which is due for release on the 50th anniversary of the formal incorporation of the ACS, on 3 October 2017.

The project also involves the creation of a ‘virtual museum’, cataloguing hardware and other artefacts, and collecting and curating documents on the history of the industry, including oral histories of as many people as possible.

Please get in touch with Graeme if you would like to contribute, at

Do you have early memories of the ICT industry in Australia? Help us make history by sending us your story! Record or write your memories to be included in our historic ACS Heritage Project. Details here.

Previously published:

Chapter 33: Australia’s software entrepreneurs

Chapter 32: Multinational software companies move in

Chapter 31: Birth of Australian software and services industry

Chapter 30: The rise and decline of the PCMs

Chapter 29: ‘Plug compatible manufacturers’ take on IBM

Chapter 28: The rise of Fujitsu

Chapter 27: ICL

Chapter 26: The rest of the BUNCH

Chapter 25: Honeywell in Australia

Chapter 24: A 1970s snapshot

Chapter 23: ACS at home and abroad

Chapter 22: The early years of the Australian Computer Society

Chapter 21: Other Australian universities

Chapter 20: University of Melbourne and Monash

Chapter 19: Sydney University and UNSW lead the way

Chapter 18: Computing in the Australian Government

Chapter 17: Trevor Pearcey and the birth of CSIRONET

Chapter 16: Enter the minicomputer – DEC comes to Australia

Chapter 15: The IBM S/360 in Australia

Chapter 14: IBM redefines the computer industry

Chapter 13: Control Data Australia (part II)

Chapter 12: Control Data Australia (part I)

Chapter 11: The Australian Computer Society

Chapter 10: Five Computer Societies

Chapter 9: Australian made, Australian designed

Chapter 8: Australia's Computer Industry in 1962

Chapter 7: WREDAC

Chapter 6: UTECOM

Chapter 5: SILLIAC and the Snowy Mountains Scheme

Chapter 4: John Bennett

Chapter 3: Harry Messel and the birth of SILLIAC

Chapter 2: The first Australian Computer Conference

Chapter 1 -The start of Australia’s computing history