Beta Disk Interface is a disk interface


  • Beta Circle Interface is a plate interface for ZX Range PCs. It was created by Innovation Investigate Ltd (Joined Kingdom), in 1984[1] and discharged in 1985 with cost £109.25 (or £249.75 with one circle drive).[2] Beta 128 Plate Interface is a 1987[3] rendition supporting ZX Range 128 machines (contrast is in get to focuses addresses). Beta plate interfaces were dispersed with TR-DOS working framework in ROM, additionally credited to Innovation Look into Ltd. Most recent firmware rendition is 5.03 (1986). The interface depended on the WD1793 chip.[4] 

  • The interface handles single and twofold sided, 40 and 80 track twofold thickness floppy plates, up to 4 drives.This interface was famous for its effortlessness, and Beta 128 Circle Interface was cloned all around USSR. Initially known USSR clones were ones delivered by Нпво "Вариант" (Leningrad) in 1989.[5] Beta 128 schematics are incorporated into different Russian ZX Range clones. 

  • A few variations of schematics bolster just 2 drives. Stage redress of drive information flag is made distinctive ways.

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