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Photos: Apple II, PDP-8 and other classic computers do battle

By Nick Heath February 20, 2018, 9:15 AM PST

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Photos: Apple II, PDP-8 and other classic computers do battle

On their marks

On their marks

Machines spanning eight decades of computing battled it out on Saturday in the first race of its kind.

Computers ranging from the world’s oldest-working computer, the 1951 Harwell Witch, to the tiny 2016 BBC micro:bit, competed to calculate the most numbers in a Fibonacci sequence in 15 seconds.

This gallery walks you through the machines that took part, from the slowest to the fastest, and you can read more about the race at The National Museum of Computing in the UK, here.

Photos: Apple II, PDP-8 and other classic computers do battle

​1951 Harwell Witch - Calculated 3 numbers.

Image: Nick Heath / TechRepublic

​1951 Harwell Witch - Calculated 3 numbers.

Once one of only 12 computers in the world, the Witch was a slow but reliable decimal computer that handled simultaneous equations for engineers building the world’s first atomic reactor for generating electricity.

Image: Nick Heath / TechRepublic
Photos: Apple II, PDP-8 and other classic computers do battle

2015 iPhone 6s - Calculated 4 numbers

Image: The National Museum of Computing

2015 iPhone 6s - Calculated 4 numbers

Apple’s recent incarnation of its classic smartphone is served by more than two million apps and is owned by millions of people worldwide.

It’s relatively poor showing in the contest is nothing to do with the abilities of the device, but rather the fact that numbers used to calculate the Fibonacci sequence were input using Siri voice commands.

Image: The National Museum of Computing
Photos: Apple II, PDP-8 and other classic computers do battle

1940's Facit calculator - Calculated 7 numbers

Image: Nick Heath / TechRepublic

1940's Facit calculator - Calculated 7 numbers

The only non-computer in the contest, this hand-operated, Swedish-made machine worked as fast as its operator.

Image: Nick Heath / TechRepublic
Photos: Apple II, PDP-8 and other classic computers do battle

​1965 PDP-8 Calculated 16 numbers

Image: Nick Heath / TechRepublic

​1965 PDP-8 Calculated 16 numbers

The first commercially successful mini-computer, this $20,000 machine (~$140,000 in today’s money) was prized for its low cost compared to other computers at the time and sold more than 50,000 units.

Image: Nick Heath / TechRepublic
Photos: Apple II, PDP-8 and other classic computers do battle

PDP-8 results

Image: Nick Heath / TechRepublic

PDP-8 results

Here you can see the output from the PDP-8.

Image: Nick Heath / TechRepublic
Photos: Apple II, PDP-8 and other classic computers do battle

​1977 Apple II - Calculated 38 numbers

Image: The National Museum of Computing

​1977 Apple II - Calculated 38 numbers

Notable for its landmark success in the microcomputer market, the Apple II won plaudits for its kitchen appliance-inspired design, its color graphics and more consumer-friendly software.

Image: The National Museum of Computing
Photos: Apple II, PDP-8 and other classic computers do battle

​1981 BBC Micro - Calculated 70 numbers

Image: Nick Heath / TechRepublic

​1981 BBC Micro - Calculated 70 numbers

A favorite of UK schools during the 1980s, more than 1.5 million of these rugged machines were sold and helped inspire a generation to learn to code — including the co-creator of the Raspberry Pi Eben Upton.

Image: Nick Heath / TechRepublic
Photos: Apple II, PDP-8 and other classic computers do battle

BASIC programming

Image: The National Museum of Computing

BASIC programming

Some of the BASIC code used used to calculate the Fibonacci sequence on the BBC Micro.

Image: The National Museum of Computing
Photos: Apple II, PDP-8 and other classic computers do battle

​1998 Windows 98 PC - Calculated 1477 numbers

Image: Nick Heath / TechRepublic

​1998 Windows 98 PC - Calculated 1477 numbers

Windows 98 was a global OS, shipping on one million desktop PCs in just four days. The OS refined the GUI of Windows 95 and implemented support for plug-and-play hardware.

Image: Nick Heath / TechRepublic
Photos: Apple II, PDP-8 and other classic computers do battle

​2016 BBC micro:bit - Calculated 6843 numbers

Image: The National Museum of Computing

​2016 BBC micro:bit - Calculated 6843 numbers

The winner of the contest, this simple board was designed to inspire kids to code.

The micro:bit packs LEDs, button, sensors and a compass onto its tiny surface, and can connect to devices via Bluetooth or be hooked up to other electronic boards.

Nine-year-old Connie programmed the board to find the Fibonacci sequence.

Also see

  • Hacking the Nazis: The secret story of the women who broke Hitler’s codes (PDF download) (TechRepublic cover story)
  • Britain’s World War II codebreakers tell their story
  • Alan Turing: Exhibition offers rare glimpse of the man behind the enigma
  • Sixty years on, Colossus cracks codes again
  • Hitler’s “unbreakable” encryption machine – and the Bletchley Park devices which cracked the code (ZDNet)
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