Before the PC: How the UNIVAC I Changed the Business Landscape - Memories of the Early PC Era

The first computer sold for business use in the world became an overnight star during a television broadcast of presidential election results. This happened in the United States in 1952.

With only 7% of the votes counted, a machine predicted a landslide victory for Eisenhower. Television stations and intellectuals at the time panicked, thinking, 'That's impossible, it must be a bug,' and tried to change the numbers, but when all was said and done, the prediction was perfectly accurate.

The machine that gave the public the powerful impression that 'computers are the brains of the future' was the world's first commercial computer, the 'UNIVAC I'.

Until then, computers were 'secret weapons' for the state and military, used for things like calculating artillery trajectories and breaking codes. Why did they end up in our business world? Behind it lay a technological paradigm shift and a drama of obsession by geniuses.

From calculating artillery shells to office payroll

When discussing the historical significance of the UNIVAC I, the most important aspect is its evolution from a 'calculator' to a 'data processor'.

Computers until then were designed to solve complex, long mathematical equations. On the other hand, what corporate administrative tasks required was not advanced mathematics. They needed the ability to sort, store, and retrieve 'simple but massive amounts of data,' such as vast numbers of customer records, employee work hours, and inventory figures.

In terms of hardware, it was packed with the cutting-edge technology of the time. The main memory (what we now call RAM) actually used long tubes filled with 'mercury.' It was a mechanism that seems unbelievable from a modern perspective: it generated sound waves within the mercury and used the delay in the speed at which those waves traveled to store data. Adopting a decimal architecture that could handle letters and numbers directly was likely a necessity to specialize it for business calculations.

A genius duo's gamble and the disappearing punch card

This monster was created by two geniuses, John Mauchly and J. Presper Eckert. Many engineers might recognize them as the duo who developed the world's first general-purpose computer, the 'ENIAC'.

The two left the world of university academia and started a company to build their ideal business machine. However, the path was a battle against a lack of funds. Since a venture company was developing cutting-edge hardware, they never had enough money. It is said they were constantly walking a tightrope on the verge of bankruptcy.

What they were most technically particular about was the adoption of 'magnetic tape.'
The main method for data input at the time was the 'punch card,' which involved punching holes in paper. Everyone in the world believed in the proven paper card. They faced fierce opposition, with people saying that metal magnetic tape might lose data or was simply unreliable.

Even so, the two would not give in. They were convinced that no matter how much the CPU processing speed increased, if the speed of flipping through paper was slow, the entire system would be a waste. They believed that unless the I/O (input/output) bottleneck was resolved, a true commercial computer could not be built.
Shrugging off the skeptical eyes of those around them, they implemented the magnetic tape-based external storage device 'UNISERVO.' It was because they won this technological gamble that the UNIVAC I was able to become a monster that processed massive amounts of data at high speed.

Chaos on the front lines: The rhapsody brought about by the first DX

The UNIVAC I, born in this way, was introduced to the U.S. Census Bureau and achieved overwhelming results. Then, in 1954, it was finally introduced to a private company for the first time, at the General Electric (GE) Appliance Park factory. The goal was to automate 'factory payroll calculation.'

From here, the 'behind-the-scenes chaos of system implementation' that is familiar to us today began.

Naturally, there was no one in the GE office at the time who could program. The task of breaking down the complex accounting processes performed on desks into logic that a computer could understand was extremely difficult. Bugs occurred frequently, and the machine would stop on a whim.

As a result, there was a delay of several weeks before the first payroll statements could be output correctly. The accounting staff on-site had to work through the night, juggling machine support and manual calculations, and the office was reportedly filled with shouts of anger and sighs of frustration. It is interesting to note that rather than "machines taking away jobs," the scene of "work not getting finished because of the machines"—something we also see in DX (Digital Transformation) in the Reiwa era—was already playing out in offices 70 years ago.

The Shock Across the Ocean and Japan's Choice

The news that American offices were being transformed by UNIVAC sent shockwaves through Japan, which was in the midst of post-war reconstruction.

Bureaucrats at the then-Ministry of International Trade and Industry (now the Ministry of Economy, Trade and Industry) and domestic engineers felt a strong sense of crisis. They feared that if they just stood by and watched, the heart of future industry—the computer—would be entirely controlled by American companies like IBM and UNIVAC (Remington Rand).

From this point on, the history of Japan's domestic computer development accelerated rapidly. The Ministry of International Trade and Industry strengthened support for domestic manufacturers while controlling the import of foreign computers. Subsequently, Japanese banks and securities firms also began to adopt UNIVAC's successors and domestic large-scale mainframes one after another. The shock brought by the "Black Ship" known as UNIVAC I ultimately pulled forward the foundation of the IT infrastructure that would support Japan's period of high economic growth.

What We Have Inherited

UNIVAC I, which Eckert and Mauchly built by pouring their very lives into it, is the origin of the design philosophy for today's PCs, servers, and AI infrastructure.

When trying to implement new technology into society, friction with old common practices and chaos on the front lines are inevitable. The comfortable digital society we enjoy today likely exists because of the accumulation of hardships faced by the nameless engineers who worked through the night in GE offices.

When I look at the quiet laptop on my desk, I feel as if I can faintly sense the mercury tubes that once filled the room and the heat of the electrons.

[Casual Memo] UNIVAC I and the Impact of Its Introduction to the Industrial World

1. The Impact of History

　・The brand power of being the "first"
　　It was the world's first "commercial" (business-use) computer, a monumental machine that brought technology previously reserved for military and scientific calculations into general society.

　・The awareness changed by television
　　The episode during the 1952 US presidential election where it predicted Eisenhower's landslide victory with only 7% of the votes counted and was proven correct (it gave the public a powerful impression that "computers are the brains of the future").

　・Size and price
　　A scale far removed from modern personal computers (PCs), occupying an entire room and costing hundreds of thousands to millions of dollars at the time (equivalent to several billion yen today).

　・Connection to the "personal computer"
　　The romantic history of how this giant monster would later be miniaturized and evolve into the "personal computer" that sits on a desk.

2. Business Transformation and Market Impact

- Specialization in office work (data processing)
Unlike the "ballistic calculations (scientific and technical calculations)" of the time, this was the first system introduced for "core business operations" that continue to this day, such as demographics, payroll, accounting, and inventory management.

- Introduction to the U.S. Census Bureau
The first customer was the U.S. Census Bureau. It dramatically reduced processing time for vast amounts of population data, proving the effectiveness of business efficiency at a national level.

- Adoption by large corporations (GE, etc.)
General Electric (GE) was the first private company to adopt it, automating factory payroll. This marked the dawn of "business IT."

- A transitional period from analog to digital
A turning point from an era reliant on manual calculation and mechanical calculators (such as the Tiger calculator) to an era of batch processing large volumes of data.

3. Technical Features and Architecture

- Adoption of magnetic tape
Replacing the then-mainstream punch cards (paper), high-speed "magnetic tape (UNISERVO)" was adopted as the primary external storage device. This significantly improved input/output bottlenecks.

- Mercury delay line memory
A mechanism that used tubes filled with mercury for main memory (the equivalent of RAM), storing data by utilizing the propagation speed of sound waves (a technology used to reduce the number of vacuum tubes and improve reliability).

- Decimal architecture
Unlike modern binary systems, this design was optimized for business (commercial) calculations, treating each character as a decimal digit (such as decimal-represented strings).

- Reliability and maintenance
Because it used approximately 5,000 vacuum tubes, operation was a constant battle against heat and failure, requiring full-time maintenance by dedicated engineers.

[Original Photo Information]

- UNIVAC01

- UNIVAC02-Mercury memory