- Rotronics Wafadrive
The Rotronics Wafadrive was a peripheral for the Sinclair
ZX Spectrum home computer , intended to compete with Sinclair'sZX Interface 1 andZX Microdrive .The Wafadrive comprised two continuous loop "
stringy floppy " tape drives, anRS-232 interface andCentronics parallel port.The drives could run at two speeds, high speed for seeking and low speed for reading/writing, which was significantly slower than that of Microdrives. The cartridges (or "wafers"), the same as those used in Entrepo stringy floppy devices for other microcomputers, were physically larger than Microdrive cartridges. They were available in three different capacities, nominally 16 kB, 64 kB or 128 kB.
The same drive mechanism, manufactured by BSR, and cartridges were used in a similar device known as the Quick Data Drive (QDD), designed to connect to the serial port of the
Commodore 64 home computer.External links
* [ftp://ftp.worldofspectrum.org/pub/sinclair/hardware-info/RotronicsWafadrive_UserManual.pdf Rotronics Wafadrive User Manual]
* [http://www.sincuser.f9.co.uk/033/massstr.htm Review of Wafadrive in "Sinclair User", December 1984]
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