Computer Chronicles Revisited 40 — Tsukuba Expo '85


In 1963, Japan’s government decided to build a planned scientific community about 35 miles north of Tokyo that would meet the country’s growing demand for high-tech research and technology. Known as Tsukuba Science City, the site today is home to roughly 150 research, educational, and high-tech business institutions. From March to October of 1985, Tsukuba also hosted a world’s fair called Expo ‘85, which was the sole focus of our next Computer Chronicles episode.

Not Just a County Fair, Not Just a Europe Fair, But a World’s Fair!

This episode departed from the usual studio format. It consisted almost entirely of narration over footage of various exhibits at Expo ‘85 with excerpts from interviews of two of the participants. Here are some of the highlights:

Personal Robots by the Year 2000?

The next segment featured the work of Professor Ichiro Kato of Tokyo’s Waseda University, who was one of Japan’s foremost experts in robotics. There was an extended demonstration of Kato’s WABOT-2, a humanoid robot that could read a musical score and then play it on an electronic keyboard using five-fingered hands.

A human-shapred robot plays an electronic synthesizer keyboard.

Cheifet explained that Kato had been working on anthropomorphic robots for the past 20 years, starting with replacement parts for the human body. Kato believed that the “real era” of robots was fast approaching. Through a translator, he told Cheifet that in 20 years–the start of the 21st century–robots would be more than just factory machines. There would be personal robots for offices and homes. Current factory robots were not very flexible. To perform human tasks these future robots would have to resemble humans in both shape and action.

Cheifet noted that WABOT-2’s movement was controlled by 80 microprocessors arranged in a hierarchical manner similar to the human nervous system. Kato elaborated the robot had 50 degrees of movement, more than any previous robot. Each joint contained a one-chip microcomputer. Fifty of these chips formed a software-servo system that took the place of hardware to obtain feedback. WABOT-2 was then made up of various sub-systems, including left and right arms and legs, as well as sound and vision.

While building a human-like robot to play a synthesizer might seem like an unnecessarily complicated way of using a computer to generate music, Cheifet said there was a reason for this “circuitous method.” Kato told him this was the best way to establish the basic technology for building 21st-century robots.

Another Kato design featured at the Expo, the Waseda Hitachi Leg 11 (WHL-11), was a walking biped robot that weighed 120 kilograms. Cheifet noted the robot required enormous strength just to move. Each of the WHL’s “hips” contained a hydraulic power source and a microcomputer.

A robot with a cubic head and four motorized limbs walking across a stage.

Kato also designed a four-legged walking robot that had the special ability to climb stairs. The professor said that since there were always three legs supporting the robot, it was a simple machine compared to the biped WHL-11. He noted that human beings had a similar evolution, from walking on four limbs to just two.

Cheifet said Kato believed that the personal robot was the next logical step after the family car and the personal computer. But there were some obstacles along the way. Kato said the advance of technology would accelerate and nothing would stop that. When it came to the society that would use that technology, however, individuals might not be able to change their consciousness as rapidly. If this gap became wide enough, Kato said, it would prove catastrophic. We must therefore find a way to change how people will react to the robots. Kato emphasized that robots were machines and not living beings, and it was important not to lose the distinction between the two.

Were Robots the Solution to America’s Future Labor Shortage?

In his closing commentary, Paul Schindler said the Japanese were so far ahead of the United States when it came to robotics that it was hard for Americans “to see their dust.” Schindler suggested this was due to Japan’s labor shortage, which necessitated the quicker development of industrial robots. The United States would face a similar crisis, he added, when baby boomers like himself got older. So right now, the Japanese needed robots and America did not. But when the time came, the U.S. would “unleash that old-fashioned American know-how” and steal every robotic idea from Japan that “was not tied down.” By the turn of the century, Schindler said we’d probably see Japanese newspapers talking about how America was “imitating, not innovating” when it came to robotics.

IBM Bundles Free Software as AT Clones Continue to Hit the Market

Stewart Cheifet presented this week’s “Random Access,” which is dated in early May 1985.

Box cover art for a 1985 software program called “BANK PRESIDENT” by Lewis Lee Corporation. The cover features a blown-up image of a $100 bill. The description says, “Play Bank President,’ Where Your Decisions Will Build, or Ruin, a Financial Empire!”

Expo Draws Over 20 Million During Six-Month Run

As I noted in the introduction, Expo ‘85–formally the International Exhibition, Tsukuba Japan 1985–ran from March 17 to September 16, 1985. According to a report from the U.S. Department of State on the Expo, the final visitor count exceeded 20.3 million for the six-month period, which met the organizer’s goal of 20 million. A total of 47 countries and 37 international organizations participated in the Expo. The United States pavilion, which covered over 32,000 square feet, focused on artificial intelligence as its theme.

The only featured guest in this episode was Waseda University Professor Ichiro Kato, who passed away in 1994. More than a decade before the WABOT-2 made a splash at Expo ‘85, Kato previously developed the WABOT-1 in 1972. According to Teckexperts.com, the WABOT-1 was the “world’s first full-scale humanoid ‘intelligent’ robot.”

Notes from the Random Access File