[ Retro Scan of the Week ] A 1985 Solid State Drive

November 5th, 2012 by Benj Edwards

SemiDisk Solid State Disk SSD Disk Drive Emulator Ad - 1985This IS your daddy's SSD.

Back in January, I traced the evolution of the Solid State Drive from its 1978 origins to the present in a PC World slideshow. From that experience, I learned that SSDs, as a product class, were far older than most people realize.

Case in point: Seen here is an advertisement for a 1985-era SSD called the SemiDisk. The company behind this early SSD, SemiDisk Systems, sold a wide range of "disk emulators" (as they were called back then) for platforms like S-100 bus systems, the TRS-80 Model 2, and the IBM PC. All of them used solid-state RAM chips to achieve read and write speeds far beyond those of rotating platter drives at the time.

The 2 megabyte SemiDisk for the IBM PC retailed for $1,795 in 1985. That's about $3,860 today when adjusted for inflation. Amusingly, at that vintage price rate — about $1,930 per megabyte — a 256 GB SemiDisk SSD would cost over $494 million today. Yep, that's a 494 followed by six zeroes.

Of course, you can buy a 256GB flash-based SSD right now for under $180. Not bad.

[ From BYTE, September 1985, p.329 ]

Discussion Topic of the Week: When did you buy your first solid state PC drive? How big was it?

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Evolution of the Solid-State Drive

January 18th, 2012 by Benj Edwards

Evolution of the Solid-State Drive on PC World.com

Believe it or not, but solid-state drives have been around for 35 years now. I recently took a look back through solid-state history and compiled a slideshow for PC World called Evolution of the Solid-State Drive. It traces the SSD through history and touches on a number of important milestones, such as the first-ever SSD and the first flash SSD. I hope you enjoy it.


Previous entries in Benj's "Evolution of…" series:
Evolution of Computer Displays
Evolution of Video Game Media
Evolution of Removable Storage
Evolution of The Cell Phone

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