San Francisco's Train System Is Still Run on Floppy Disks. It May Finally Get an Upgrade. Officials approve a $212 million plan to replace its wildly outdated train control system.

By David James

Key Takeaways

  • San Francisco's Automatic Train Control System (ATCS) still runs on data that is stored on floppy disks.
  • A $212 million overhaul will move the tech five generations ahead, according to officials.

If you're old enough to know what a floppy disk is, you're old enough to know how bonkers this is: San Francisco's Automatic Train Control System (ATCS) runs on data that is stored on floppy disks.

Floppy disks were first put into widespread commercial use by IBM in the 1970s and were the go-to way to store data through the 1990s. Apple dropped the floppy drive in 1998 with the release of the iMac, and five years later, Dell did the same with its Dell Dimension range. Sony was the last company to manufacture the disks, halting operations in 2011.

Related: This Will Be the Busiest Travel Day During the 2024 Holiday Season

In other words, floppy disks are an insanely old and outdated way to manage data.

San Francisco's Municipal Transportation Agency board, which oversees the Muni Metro light rail network in the city, announced the approval of a $212 million overhaul, which will eliminate the need to load the data stored on these floppy disks each morning, reports the San Francisco Chronicle. The system communicates the data using wire loops that are "easily disrupted" and move more slowly than a wireless modem. (In a city built in an area that experiences lots and lots of earthquakes each year, what could go wrong?)

The new Hitachi system will be "five generations ahead" of the floppy disk system, according to Muni Director of Transit Julie Kirschbaum. Let's hope "five generations" puts it beyond CD-ROMs at least.

Related: 21 Productive Things to Do on Your Commute

David James

Entrepreneur Staff

Staff writer

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Business Ideas

70 Small Business Ideas to Start in 2025

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2025.

Growing a Business

Is Your Business Struggling? Take These Steps to Drive Your Company to Success

By embracing victories and rigorously analyzing weaknesses, you can forge a powerful plan that ensures not just survival but also thriving success.

Growing a Business

Bad Clients Can Derail Your Business. Here's How to Fire Them the Right Way.

Not all clients are good for your business. Learn how to identify bad clients, minimize their impact and professionally fire them while protecting your team, finances and reputation.

Leadership

The 4 Pillars of Leadership — How Planning-Driven Leaders Keep Teams Focused and Moving Forward

Here's how to understand what it means to be a planning-driven leader and how to bring the best out of this leadership style.

Growing a Business

Why Bad Automation is Destroying Your Productivity and Draining Profits

Instead of streamlining operations, many businesses make costly mistakes by automating broken processes, adding complexity and creating inefficiencies. The key to success? Fix the process first — then automate strategically.