Financial markets have continually relied on timely information, and the run for timeliness has continually adapted to the latest technology. From clipper ships transiting the oceans to telegraph wires connecting cities to fiber-optic cables conducting trades in microseconds, traders have embraced any advantage to get the most up-to-date information. Indeed, the former of backing is really a narrative concerning how accelerated you can move data and who controls the interface.
It’s lone natural that group additionally figured out a way to gain by supplying that market intel. In 1841, for example, the Mercantile Exchange (predecessor to Dun & Bradstreet) began marketing proprietary endeavor data to its U.S. clients. The following decade, Paul Julius Reuter began marketing news services and inventory cost information. To supplement the company’s telegraph dispatches, he sent pigeons between Aachen, Germany, and Brussels; all animal carried a cylinder containing slips of document alongside that day’s inventory prices. In 1867, an inventor named Edward Calahan introduced the archetypal telegraphic ticker-tape machine, which spooled out inventory cost data in near genuine time; Thomas Edison improved upon the scheme alongside his patented version in 1871.
The Dow Jones Industrial Average debuted in 1896 as an indicator of 12 key businesses listed on U.S. inventory exchanges. It included gas, oil, coal, and electric companies, as fine as enterprises dealing in leather, rubber, and tobacco. Messengers delivered quotes from the selling flat to brokerage offices, during inventory tickers kept investors informed of prices. By the period New York City held its first authoritative ticker-tape parade, in 1919, telegraphy in Western Europe and the United States had rotate into the chief method for quick transfer of critical inventory information.
In 1960, the archetypal paperless financial assistance debuted, whenever Quotron introduced its digital screens for displaying market quotes. Over the next two decades, another companies rolled out akin innovations for distributing financial news and data.
So whenever Michael Bloomberg decided to act this well-established industry in 1981, the big inquiry was: How would his new business remain out?
The Birth of the Bloomberg Terminal
Bloomberg had cofounded Innovative Market Systems (IMS) following being fired from the funding financial institution Salomon Brothers. Landing on his feet alongside his US $10 myriad equity payout and joined by erstwhile Salomon colleagues Thomas Secunda, Duncan MacMillan, and Charles Zegar, Bloomberg pursued his condemnation that Wall Street would pay a premium for specialized financial data. He’d earned an electric engineering flat from Johns Hopkins University and an MBA from Harvard, and he’d built computerized financial systems for Salomon. IMS focused on evolving a device terminal that not lone provided up-to-date data but could additionally do instant quantitative inspection according to historic data.
At the time, most financial data motionless circulated through phone calls, printed cost sheets, and expert publications, and inspection engaged a fair amount of gut intuition guided by individual expertise. Companies specified as Reuters and Dow Jones provided subscription-based services for admission to endeavor news. But traders motionless had to collect data from multiple sources and execute their own calculations and analysis.
IMS projected an unified scheme alongside a sole interface. Its Market Master terminal consisted of a monochrome CRT monitor, a tradition keyboard, and a communications/controller component that connected to the company’s personal network. At launch, it provided lone U.S. authorities association prices and bond-calculation tools, but the aspiration was much bigger: a dedicated terminal that would sit on a trader’s array and run distinct market scenarios, create output curves, and assistance funding calculations.
IMS initially had fair one client, Merrill Lynch, which invested $30 myriad (about $110 myriad today) in toggle for a 30 percent interest in the business and exclusive entitlements to the terminals for five years; Merrill waived that correct in 1984. The archetypal 22 Market Master terminals were delivered to Merrill in 1982, in the center of a global recession. The timing was fortuitous. Worldwide, inventory markets were transitioning to digital trading, and the U.S. Federal Reserve was allowing additional openly floating involvement rates. Bond prices were additional volatile, and investors were enthusiastic to fig out how to value them accurately. Bloomberg’s specialized financial terminals provided the data and the analytical tools to procedure and comprehend those sweeping changes.
Five years following its launch, IMS rebranded as Bloomberg LP and expanded its clientele, and the Market Master became known as the Bloomberg Terminal.
How Did the Bloomberg Terminal Work?
The Bloomberg Terminal’s keyboard was designed alongside traders and analysts in mind. The function keys were color-coded and stated labels specifying their usage, so that users didn’t have to remember. The first keyboard, affectionately referred to as “the Chiclet,” was hand assembled. A cable ran from the keyboard to the Bloomberg Controller, which had a dedicated phone row to nexus to a local hub. The net wasn’t commercially accessible yet, so the business basically built its own closed network, alongside centralized computers that maintained ample databases and performed most of the calculations. Commands entered on the keyboard sent a petition to the hub, which processed the data and sent rear the result.
Hot keys let traders effortlessly call up data on authorities securities, company debt, and prosperity markets, among another things. A sequence of keystrokes would drag up another historic and real-time data, run an analysis, or location a trade. Learning how to use the terminal and digest the huge amount of information, which was presented mostly in tabular form, became a rite of passage for users.
In 1990, Bloomberg added a trackball to the keyboard, which helped the person navigate the multiple windows and menus typically displayed on screen. Two years later, the keyboard gained a built-in speaker, to assistance multimedia information; this scheme additionally included telephone, headphone, and microphone jacks. One of the most famous features was Instant Bloomberg, which allowed users to conversation immediately alongside chap Bloomberg Terminal users complete the proprietary network. By 1996, Bloomberg had keyboards that supported 23 distinct languages. In the first 2000s, the business began incorporating biometric authentication for terminal login, via a fingerprint audience on the keyboard.
As the company’s endeavor example evolved, the Bloomberg Terminal added services fine beyond its first offerings. In 1990, for example, concerned that Dow Jones would halt providing admission to its news stories, Bloomberg set up its own news service. It recruited Wall Street Journal reporter Matthew Winkler to oversee a dozen reporters; their stories on market and securities movements used graphs and calculations that served as promotions for the terminal’s capabilities. These days, the Bloomberg news empire includes Bloomberg Businessweek, Bloomberg Radio, and Bloomberg Television.
Bloomberg’s subscription-based financial example included the leasing of a Bloomberg Terminal alongside its specialized keyboard and another hardware, admission to a dedicated personal network, and a suite of services. In 1999, a subscription to a sole Bloomberg Terminal disbursal $1,600 per duration alongside a minimum two-year agreement and a discount on all additional terminal. Today the annual cost is upwards of $32,000 (trending a small below inflation). In 1995, the business launched a suite of “Open Bloomberg” application products that ran on the customer’s own PC; five years later, it stopped leasing dedicated terminals. Current customers additionally have admission to mobile applications that authorize terminal functions to run on phones and tablets. Today, “Bloomberg Terminal” has arrive to mention to the unified data, analytics, news, communications, and selling environment.
The Legacy of the Bloomberg Terminal
Although the change distant from dedicated terminals was a logical reply to the increase of the net and publically accessible market data, it altered the matter civilization of financial work. For nearly two decades, Bloomberg Terminals commanded an aura of power and financial prowess. They were emblems of market mastery, alongside a brand that was distinct from another agency computers. With Open Bloomberg, users were no longer tied to a sole array or a fixed set of monitors.
And so, cast-off Bloomberg Terminals established their way into museum collections. They’re a bodily embodiment of the ethereal nature of financial markets, and a manifestation of mathematical calculations, network infrastructure, and endeavor culture.
The Smithsonian Institution’s National Museum of American History has a figure of Bloomberg keyboards in its collection, but my favorite is entity figure 2014.0012.02, which was used by “Bond King” Bill Gross during the 1990s and 2000s at Pacific Investment Management. Gross had cofounded PIMCO in 1971 and built it into a $2 trillion association funding firm. I particularly affection that Gross taped his login and password immediately on his keyboard, which makes the entity additional relatable. I may never cognize what it’s akin to oversee billions in resources from a Bloomberg Terminal, but I entirely comprehend the test of remembering my passwords.
Part of a continuing series looking at historic artifacts that clasp the boundless possible of technology.
An abridged type of this part appears in the October 2026 imprint matter as “The Keyboard That Moved Markets.”
