A Tshwane computer engineer has tracked down one of the great treasures of the computer age – the first space flight guidance computer. ARTHUR GOLDSTUCK tells the story.
It’s not often that a YouTube video on a technical topic gives one goosebumps. And it’s not often that someone unpacking a computer makes history.
Francois Rautenbach, a computer hardware and software engineer from Tshwane, achieves both with a series of videos he has quietly posted on YouTube.
It shows the “unboxing” of a batch of computer modules that had been found in a pile of scrap metal 40 years ago and kept in storage ever since. Painstaking gathering of a wide range of evidence, from documents to archived films, had convinced Rautenbach he had tracked down the very first Guidance and Navigation Control computer, used on a test flight of the Saturn 1B rocket and the Apollo Command and Service Modules.
Apollo-Saturn 202, or Flight AS-202, as it was officially called, was the first to use an onboard computer – the same model that would eventually take Apollo 11 to the moon. Rautenbach argues that the computer on AS-202 was also the world’s first microcomputer. That title has been claimed for several computers made in later years, from the Datapoint 2200 built by CTC in 1970 to the Altair 8800 designed in 1974. The AS-202 flight computer goes back to the middle of the previous decade.
His video succinctly introduces the story: “On 25th August 1966, a very special computer was launched into space onboard Apollo flight AS-202. This was the first computer to use integrated circuits and the first release of the computer that took the astronauts to the moon. Until recently, the software for the Block 1 ACG (Apollo Guidance Computer) was thought to be lost…”
One can be forgiven for being sceptical, then, when he appears on screen for the first time to say, “I’ve got here with me the software for the first microcomputer.”
Then he unwraps the first package and says: “Guys, these modules contain the software for the first microcomputer that was ever built, that was ever used.”
The goosebumps moment comes when he reveals the NASA serial number on a device called a Rope Memory Module, and declares: “These modules are the authentic flight AS-202 software modules. These were found on a rubbish dump, on a scrap metal heap, about 40 years ago … and we are going to extract the software from this module.”
In a series of three videos, he extracts the software, shows how the computer was constructed, and uses a hospital X-Ray machine to inspect its insides. The third video starts with the kind of phrase that often sets off the hoax-detectors in social media: “Okay, so you guys won’t believe what I’ve been doing today.” But, in this case, it is almost unbelievable as Rautenbach takes the viewer through a physical inspection of the first Apollo guidance computer.
How did an engineer from Tshwane stumble upon one of the great treasures of the computer age? He has tended to avoid the limelight, and describes himself as “a hardware/software engineer who loves working on high-velocity projects and leading small teams of motivated individuals”.
In an interview this week, he added: “I am the perpetual hacker always looking for a new challenge or problem to solve. I have experience in designing digital hardware and writing everything from embedded firmware to high level security systems. Much of the work I did over the last five years revolved around building new and creative payment solutions.”
The breadth of his work gave him the expertise to investigate, verify, and extract the magic contained in the AS-202 computer. A global network of contacts led him to the forgotten hardware, and that is when the quest began in earnest.
“I got interested in the Apollo Guidance Computer after reading a book by Frank O’Brien (The Apollo Guidance Computer: Architecture and Operation). Most of us grew up with the fallacy that the AGC was less powerful than a basic programmable calculator. I discovered that this was far from the truth and that the AGC was in fact a very powerful and capable computer.
“I started communicating with experts in the field and soon realised that there was a wealth of information available on the AGC and the Apollo space program in general.
“One day I received some photos of AGC Rope Memory modules from a friend in Houston marked ‘Flight 202’. After a little googling, I realised that these modules contained the software from Flight AS-202. As I learned more about AS-202, I discovered that this was the first time the AGC was used in an actual flight.”
Rautenbach eventually tracked down the source of the photos: a man who had picked up the entire computer, with memory modules, at an auction, as part of a three-ton lot of scrap metal.
“At one point he opened up to me and said he had other modules. He admitted he had a full Apollo guidance computer, and my theory was that it was used to develop the Apollo 11 guidance computer. He sent me more information, and I thought he had THE computer.
“He’s got all this junk in his backyard. He started selling stuff on eBay and one day got a visit from the FBI wanting to know where he got it. He was able to find the original invoice and showed it to them and they went away. But it scared him and he didn’t want to tell anyone else in the USA what he had. Not being from America was an advantage.”
Rautenbach flew to Houston last year, opened the sealed packages and filmed the process.
“This was the first microcomputer. I opened it and played with it. I realised this was the first computer that actually flew. I also found Rope Memory modules that said Flight 202, and he didn’t know what that was. I found it was from AS-202, and I said we can extract stuff from this.”
Rautenbach paid a deposit to borrow the units and have them sent to South Africa, so that he could extract and rebuild the software. He also made contact with Eldon Hall, leader of the team that developed the Apollo guidance computer and author of the 1966 book, Journey to the Moon: The History of the Apollo Guidance Computer.
The correspondence helped him verify the nature of the “scrap”. The Apollo command module from flight AS-202 was restored and is now on permanent display on the USS Hornet, the legendary aircraft carrier used to recover many Apollo command modules and now a museum. However, the computer parts were sold as scrap in 1976. And NASA never preserved a single copy of the software that had been used on its first guidance computer.
Fortunately, a sharp-eyed speculator realised the lot may contain something special. He sold off some of the scrap over the years, until that visit by the FBI. He still prefers to remain nameless.
Last week, on the 50th anniversary of the launch of AS-202, Rautenbach quietly began posting the evidence online. He also announced that the raw data he had extracted would shortly be made available to anyone who wished to analyse it.
His videos on the unboxing of the AS-202 computer and the extraction of the software can be viewed on YouTube at http://bit.ly/as202, where he also plans to post instructions for accessing the software.
- Arthur Goldstuck is founder of World Wide Worx and editor-in-chief of Gadget.co.za. Follow him on Twitter and Instagram on @art2gee
Nasa’s description of flight AS-202 can be found at: http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=APST202
Technical specifications of the Apollo Guidance Computer can be found at: https://en.wikipedia.org/wiki/Apollo_Guidance_Computer
Apollo comes back to Pretoria
Francois Rautenbach points out that South Africa played a prominent role during the 93 minutes of flight AS-202: “Pretoria is mentioned no less than three times in the post-flight report. The AS-202 flight actually reached it’s highest point above South Africa. The telemetry data from the flight were recorded on computer tape at Hartebeesthoek and later shipped back to NASA.”
AI, IoT, and language of bees can save the world
A groundbreaking project is combining artificial intelligence and the Internet of Things to learn the language of bees, and save the planet, writes ARTHUR GOLDSTUCK
It is early afternoon and hundreds of bees are returning to a hive somewhere near Reading in England. They are no different to millions of bees anywhere else in the world, bringing the nectar of flowers back to their queen.
But the hive to which they bring their tribute is no ordinary apiary.
Look closer, and one spots a network of wires leading into the structure. They connect up to a cluster of sensors, and run into a box beneath the hive carrying the logo of a company called Arnia: a name synonymous with hive monitoring systems for the past decade. The Arnia sensors monitor colony acoustics, brood temperature, humidity, hive weight, bee counts and weather conditions around the apiary.
On the back of the hive, a second box is emblazoned with the logo of BuzzBox. It is a solar-powered, Wi-Fi device that transmits audio, temperature, and humidity signals, includes a theft alarm, and acts as a mini weather station.
In combination, the cluster of instruments provides an instant picture of the health of the bee hive. But that is only the beginning.
What we are looking at is a beehive connected to the Internet of Things: connected devices and sensors that collect data from the environment and send it into the cloud, where it can be analysed and used to monitor that environment or help improve biodiversity, which in turn improves crop and food production.
The hives are integrated into the World Bee Project, a global honey bee monitoring initiative. Its mission is to “inform and implement actions to improve pollinator habitats, create more sustainable ecosystems, and improve food security, nutrition and livelihoods by establishing a globally-coordinated monitoring programme for honeybees and eventually for key pollinator groups”.
The World Bee Project is working with database software leader Oracle to transmit massive volume of data collected from its hives into the Oracle Cloud. Here it is combined with numerous other data sources, from weather patterns to pollen counts across the ecosystem in which the bees collect the nectar they turn into honey. Then, artificial intelligence software – with the assistance of human analysts – is used to interpret the behaviour of the hive, and patterns of flight, and from there assess the ecosystem.
Click here to read more about how the Internet of Things is used to interpret the language of bees.
Download speeds ramp up in SA
All four South African mobile network operators have improved their average download speed experience by at least 1 Mbps in the past six months.
This is one of the main findings in the latest South Africa Mobile Network Experience report by Opensignal, the mobile analytics company. It has analysed the mobile experience in the country, updating a study last conducted in February 2019. While a quick look at its South Africa awards table suggests not much has changed since the last report, it’s far from stagnating.
Opensignal reports the following improvements across its measurements:
- MTN remains the leader in our 4G Availability measurements, with a score of 83.6%. But the other three operators are all now within 2 percentage points of the 80% milestone — with Telkom’s users seeing the biggest increase of over 8 points.
- All four operators improved their Download Speed Experience scores by at least 1 Mbps. But growth in our Upload Speed Experience scores has stagnated, with only winner Vodacom seeing an incremental increase.
- MTN and Vodacom remain tied for our Video Experience award, and both have increased their scores in the past six months, putting them on the cusp of Very Good (65-75) ratings. Cell C also increased its score to tip over into a Good ranking (55-65).
- MTN scored over 90% in 4G Availability in two of South Africa’s biggest cities and was just shy of this milestone in the others. Meanwhile, MTN and Vodacom have now passed the 20 Mbps mark in Download Speed Experience in three cities each.
A quick look at the awards table would suggest not much has changed in South Africa since the last report in February. MTN won the 4G Availability award again, Vodacom kept hold of the medals for Upload Speed and Latency Experience, while the two operators tied for Download Speed and Video Experience just as they did six months ago.
But far from stagnating, we’re seeing improvements across most of the measurements. All four of South Africa’s national operators — Cell C, MTN, Telkom and Vodacom — are now closing in on 80% 4G Availability nationally, while at the urban level, MTN has passed the 90% mark in two cities. And in Download Speed Experience, our users on all four operators’ networks saw their scores increase at least 8%.
In this report, Open Signal has analyzed the scores for all four national operators across all their metrics over the 90 days from the start of May 2019, including South Africa’s five biggest cities — Cape Town, Durban, Ekurhuleni, Johannesburg, and Tshwane.
MTN has been top of Open Signal’s South African 4G Availability leaderboard for a couple of years now, and the operator remains dominant with a winning score over 4 percentage points ahead of its rivals. But it was users on Telkom’s network who saw the most impressive boost in 4G Availability, as its score jumped by well over 8 percentage points.
This leap has put Telkom into a three-way draw for second place with Cell C and Vodacom, who both saw their scores increase by at least 3 percentage points.
While MTN is the only operator to have passed 80% in national 4G Availability, the other three players are all less than 2 percentage points away from this milestone. Based on the current rate of improvement, Open Signal fully expects to see all four operators pass the 80% mark in its next report — which will provide testament to the rapid maturing of the South African mobile market.
MTN and Vodacom remain neck-and-neck in the Video Experience analysis, with both operators scoring 65 (out of 100). And the two rivals both saw their scores rise by around 3 points since our last report, meaning the two continue to share our Video Experience award. Cell C and Telkom remain in third and fourth place, but both saw larger increases — of 5 and 4 points respectively — to narrow the gap on the leaders.
The increase in MTN and Vodacom’s Video Experience scores means the two operators are on the cusp of Very Good (65-75) ratings in this metric — with the users on their networks enjoying fast loading video times and almost non-existent stalling, even at higher resolutions. By comparison, Cell C’s score earned it a Good rating (55-65), while Telkom remains in Fair (40-55) territory — meaning users watching video on Telkom’s network, in particular, will likely struggle with longer load times and frequent stuttering, even at lower resolutions.
In terms of 4G-only Video Experience, Cell C’s score has increased enough to tip it over into a Very Good rating — now featuring three operators achieving 4G network scores with a Very Good ranking. And as 4G Availability continues to increase, the overall Video Experience scores will continue to climb, making mobile video viewing more of a viable proposition across all networks. And in a country where fixed-line broadband connections are relatively rare and the large majority of South Africans only connect to the internet via cellular, this improvement has the potential to transform people’s lives.
Read more from Open Signal’s report here.