In 2000, at a trade fair in Germany, an obscure Singapore company called Trek 2000 unveiled a solid-state memory chip encased in plastic and attached to a Universal Serial Bus (USB) connector. The gadget, roughly the size of a pack of chewing gum, held 8 megabytes of data and required no external power source, drawing power directly from a computer when connected. It was called the ThumbDrive.

That device, now known by a variety of names—including memory stick, USB stick, flash drive, as well as thumb drive—changed the way computer files are stored and transferred. Today it is familiar worldwide.

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The thumb drive was an instant hit, garnering hundreds of orders for samples within hours. Later that year, Trek went public on the Singapore stock exchange, and in four months—from April through July 2000—it manufactured and sold more than 100,000 ThumbDrives under its own label.

Good-bye, floppy disk

Before the invention of the thumb drive, computer users stored and transported their files using floppy disks. Developed by IBM in the 1960s, first 8-inch and later 5 ¼-inch and 3 ½-inch floppy disks replaced cassette tapes as the most practical portable storage media. Floppy disks were limited by their relatively small storage capacity—even double-sided, double-density disks could store only 1.44 MB of data.

During the 1990s, as the size of files and software increased, computer companies searched for alternatives. Personal computers in the late 1980s began incorporating CD-ROM drives, but initially these could read only from prerecorded disks and could not store user-generated data. The Iomega Zip Drive, called a “superfloppy” drive and introduced in 1994, could store up to 750 MB of data and was writable, but it never gained widespread popularity, partly due to competition from cheaper and higher-capacity hard drives.

Computer users badly needed a cheap, high-capacity, reliable, portable storage device. The thumb drive was all that—and more. It was small enough to slip in a front pocket or hang from a keychain, and durable enough to be rattled around in a drawer or tote without damage. With all these advantages, it effectively ended the era of the floppy disk.

But Trek 2000 hardly became a household name. And the inventor of the thumb drive and Trek’s CEO, Henn Tan, did not become as famous as other hardware pioneers like Robert Noyce, Douglas Engelbart, or Steve Jobs. Even in his home of Singapore, few people know of Tan or Trek.

Why aren’t they more famous? After all, mainstream companies including IBM, TEAC, Toshiba, and, ultimately, Verbatim licensed Trek’s technology for their own memory stick devices. And a host of other companies just copied Tan without permission or acknowledgment.

Competing claims about the memory stick’s origin

Maurizio Di Iorio

The story of the thumb drive reveals much about innovation in the silicon age. Seldom can we attribute inventions in digital technology to one individual or company. They stem instead from tightly knit networks of individuals and companies working cooperatively or in competition, with advances made incrementally. And this incremental nature of innovation means that controlling the spread, manufacturing, and further development of new ideas is almost impossible.

So it’s not surprising that overlapping and competing claims surround the origin of the thumb drive.

In April 1999, the Israeli company M-Systems filed a patent application titled “Architecture for a Universal Serial Bus-based PC flash disk.” This was granted to Amir Ban, Dov Moran, and Oron Ogdan in November 2000. In 2000, IBM began selling M-Systems’ 8-MB storage devices in the United States under the less-than-memorable name DiskOnKey. IBM has its own claim to the invention of an aspect of the device, based on a year-2000 confidential internal report written by one of its employees, Shimon Shmueli. Somewhat less credibly, inventors in Malaysia and China have also claimed to be the first to come up with the thumb drive.

The necessary elements were certainly ripe for picking in the late 1990s. Flash memory became cheap and robust enough for consumer use by 1995. The circulation of data via the World Wide Web, including software and music, was exploding, increasing a demand for portable data storage.

When technology pushes and consumers pull, an invention can seem, in retrospect, almost inevitable. And all of the purported inventors could certainly have come up with the same essential device independently. But none of the many independent stories of invention paint quite as clear an origin story—or had as much influence on the spread of the thumb drive—as the tale of Tan in Singapore.

Henn Tan: From truant to entrepreneur

Henn Tan, shown here in 2017, fought a series of mostly losing battles against those who pirated Trek 2000’s ThumbDrive design and against rival patent claims. Yen Meng Jiin/Singapore Press/AP

Tan, the third of six brothers, was born and raised in a kampung (village) in the neighborhood of Geylang, Singapore. His parents, working hard to make ends meet, regularly left Tan and his brothers alone to roam the streets.

The first in his family to attend high school, Tan quickly fell in with a rebellious crowd, skipping school to hang out at roadside “sarabat” (drink) stalls, dressed in “shaggy embroidered jeans, imbibing coffee and cigarettes, and tossing his long mane as he polemicized about rock music and human rights,” according to a 2001 article in the Straits Times. After a caning for truancy in his third year of high school that served as a wake-up call, Tan settled down to his