Kate Johanns

All posts by Kate Johanns

Kate Johanns is a communications professional and freelance writer with more than 13 years of experience in publishing and marketing.

Tech Time Warp
Tech Time Warp: Meet ERMA, the machine that automated check processing

Tech Time Warp: Meet ERMA, the machine that automated check processing

When did you last write a check? In July 2024, Target became the latest retailer to stop accepting checks, citing “extremely low volumes” of customers paying by check. Use of checks — already declining before the COVID-19 pandemic — took...

/ September 19, 2025
Pioneers in Tech
Pioneers in Tech: Dennis Ritchie left us many tech riches, including the C language and UNIX

Pioneers in Tech: Dennis Ritchie left us many tech riches, including the C language and UNIX

The October 2011 passing of Dennis Ritchie—creator of the C programming language and co-creator of the UNIX operating system—was largely overshadowed by Steve Jobs’ death the week prior. Yet Ritchie’s quiet genius laid the foundation for much of modern computing....

/ September 12, 2025
Tech Time Warp: Star Trek was not the final frontier for many tech ideas

Tech Time Warp: Star Trek was not the final frontier for many tech ideas

As ubiquitous as Star Trek is—spawning so many spin-offs and movies that only a true Trekkie could list them all off the top of their head—it’s a fun bit of trivia that the original series (known as “TOS” to fans)...

/ September 5, 2025
Tech Time Warp
Tech Time Warp: The lovable and luggable Compaq Portable

Tech Time Warp: The lovable and luggable Compaq Portable

August 27 marked the 32nd anniversary of the release of the Compaq Presario. This was a family of PCs that included a monitor, a modem, and, for many, their first America Online CD-ROM. Learn more in this edition of Tech...

/ August 29, 2025
Tech Time Warp
Tech Time Warp: The history of the Computer History Museum

Tech Time Warp: The history of the Computer History Museum

It might seem a bit meta (not Meta!) for a technology history blog series to cover the history of the Computer History Museum, but the Silicon Valley institution is the mothership, and we certainly rely on its incredible web presence....

/ August 22, 2025
Tech Time Warp
Tech Time Warp: Welchia—when the remedy was as bad as the malady

Tech Time Warp: Welchia—when the remedy was as bad as the malady

August 2003 was already challenging for network administrators. They were busy fending off the Blaster worm, whose payload caused computers to reboot every 60 seconds, so initially they may have reacted positively to news of the Welkin worm. Welkin was...

/ August 15, 2025
Pioneers in Tech
Pioneers in Tech: Sir Clive Sinclair, a man ahead of his time

Pioneers in Tech: Sir Clive Sinclair, a man ahead of his time

One major development in the demise of the slide rule was the release of the Sinclair Executive Electronic Pocket Calculator in August 1972. At one-third the size of its competitors, not to mention half the cost, the Sinclair Executive was...

/ August 8, 2025
Tech Time Warp
Tech Time Warp: The TRS-80 makes its debut

Tech Time Warp: The TRS-80 makes its debut

It sounds like a joke today: A major retailer, concerned about waning interest in CB radio, decides to offer a new product line. But the retailer isn’t sure this new product line will have any staying power. Would the market...

/ August 1, 2025
Tech Time Warp
Tech Time Warp: Slicing into the history of CT scans

Tech Time Warp: Slicing into the history of CT scans

A CT scan is so commonplace no one thinks twice about it anymore—but, as with all things technology, we really should. Take a look at the history behind CT scans in this edition of Tech Time Warp. Forty-two years ago,...

/ July 25, 2025
Pioneers in Tech
Pioneers in Tech: The man behind Moore’s Law

Pioneers in Tech: The man behind Moore’s Law

July 18 marks the 57th anniversary of Intel’s incorporation—and as with any of the Silicon Valley juggernauts, the backstory of its founders is fascinating. Take Gordon Moore, who—along with Robert Noyce and Andy Grove—incorporated the microprocessor company in 1968 and...

/ July 18, 2025