EPROM disk operating system for ease of operation
Written on February 24th, 2026 by Tech Ads
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CUT OUT THIS COUPON AND SEND WITH CHEQUE OR POSTAL ORDER TO THE ADDRESS ABOVE
TOTAL
PLEASE SEND ME: QTY
SINGLE DENSITY BETAINTERFACE. ( £ ee ea
_—
DOUBLE DENSITY BETAINTERFACE ( £109.25
$501
SPECTRUM DISK INTERFACE
The Ultimate for the Spectrum owner!
Spectrum owners! Now you can upgrade your
machine to take fu// advantage of the sheer speed and
convenience of floppy disk operating.
Greater storage! Faster access! More operating
flexibility! .
Disk drives were specifically designed for use with
Computers So programs and data can be stored and
accessed quickly and safely. Also a disk drive uses random
access to get programs and data from any part of the disk.
The speed? Only a fewseconds!
Upgrade now with this low-cost Beta disk interface
from Technology Research that uses only 128 bytes of
Spectrum memory and gives you /nstant operating
compatibility with any disk drive that the BBC micro uses!
Each interface comes complete with a 5%" disk with
utility programs a/ready loaded. From the word go you can
transfer the contents of one disk to another or make copies
of individual programs or data to any other disk. There will
be no problems with your upgrade to DISK operation as the
LOAD and SAVE commands work equally well with
Cassette or micro-drive.
Take advantage of this offer and get the compact yet
powerful Beta Disk Drive as well, made by TEC (as supplied
by Cumana), and be up and running on disk in minutes!
The Beta disk interface; the Beta disk drive. Only
from Technology Research. The sooner you order, the
sooner you ll be enjoying all the benefits of full disk
control!
Technology Research Ltd.
Unit 18 Central Trading Estate
Staines, Middlesex TW18 4XE
Tel: Staines (0784) 63547
Tix: 896691 TLXIRG
£2 p.p. (UK) |E
£6 p.p. (UK) |é
BETA DRIVE* (a £152.00
*40 track single sided, including power supply
Prices for other disk drives available on request
Name
Address
Postcode
Features
EPROM disk operating system for ease of operation
Available in Single Density and Double Density
Uses only 128 bytes of Spectrum memory
Compatible with 40 or 80 tracks, single or double-sided
disk drives
Works equally well on 5%’, 32” or 3” disks, with
upgradability built-in from 100K to 2.6 Mbyte
Supports up to four disk drives
BASIC program merge facility
Duplicate Spectrum connector included
Uses Spectrum key words
Random access of data for fast operation
It costs less per byte of storage to switch from tape to disk
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‘EPROM disk operating system for ease of operation’
The Beta Disk Interface by Technology Research Limited was a third-party disk interface card for the ZX Spectrum that enabled the slow cassette-based storage of the ZX Spectrum to connect to either one or two faster 5 1/2, 3 1/4 or 3 inch floppy disk drives. Due to a lack of standardisation in the Spectrum market place very little commercial software supported the Beta Disk Interface’s DOS out of the box, however users were able to convert commercial software to run on the Beta with minimal effort. By January 1985 the Beta Disk Interface was available for from 99.00GBP
Sinclair User Magazine looked at the Beta Disk Interface in both the March 1984 and January 1985 issues, returning positive reviews on both occasions.
Both a User Manual and Technical Breakdown for the Beta Disk Interface can be viewed at SpectrumComputing.co.uk.
Taken from: Personal Computer World - Volume 8, Issue 1 (January 1985)