Editing TRS-80 (section)

=== Exatron Stringy Floppy ===
An alternative to cassette tape and floppy disk storage from [[Exatron]] sold over 4,000 units by 1981. The device is a continuous loop tape drive, dubbed the [[Exatron Stringy Floppy|stringy floppy]] or ESF. It requires no Expansion Interface, plugging directly into the TRS-80's 40-pin expansion bus, is much less expensive than a floppy drive, can read and write random-access data like a floppy drive unlike a cassette tape, and it transfers data at up to 14,400 [[baud]]. Exatron tape cartridges store over 64 KB of data. The ESF can coexist with the TRS-80 data cassette drive. Exatron also made a complementary RAM expansion board that installed in the TRS-80 keyboard to increase memory to 48 KB without the EI.<ref name="lundell19810831X">{{cite magazine |url=https://books.google.com/books?id=rD0EAAAAMBAJ&q=%22stringy+floppy+from+exatron%22&pg=PA47 |title=Stringy Floppy from Exatron |magazine=[[InfoWorld]] |date=August 31, 1981 |volume=3 |number=17 |access-date=February 15, 2015 |author=Lundell, Allan |pages=47–48}}</ref>