TR-DOS - Disk interface.

TR-DOS.
 Disk interface.

 Annotation. (or from the topic of lanterns
                         magazine articles)

 The interface has the following advantages:

Easy and fast│data search and prog-
access │ramm is carried out
                 │much faster
                 │than when using
                 │cassette tape;
Wide selection of dis│5.25,3.25,40 and 80 to-
drivers │ horn, one or two
                 │third-party drives.Mac
                 │maximum capacity
                 │more than 2.5 million characters;
Flexibility │interface independent,
                 │therefore you can use
                 │share your disks with other
                 │by computers;
Compatibility │interface can be used
                 │call with others
                 │Spectrum, Spe computers
                 │ctrum Plus,Spectrum 12
                 │8.256.512.1024;
Autoload │after switching on and reset
                 │sa computer automatic
                 │truely loaded TR-
                 │DOS;
Magic button │allows you to save
                 │ program thread, based
                 │ on the tape, if on-
                 │press the MAGIC button;
Simple syntax│simple syntax with is
                 │using key
                 │words Speccy provide-
                 Allows access to files│on the TR-DOS disk on BAS
                 │IC or in machine code
                 │de;
Simple handling│TR-DOS controls matri
to files with numbers and lines
                 │kami, files with subsequent
                 │active and arbitrary
                 free access.

 This log contains information
for full use of DISK INTERFACE.
This manual contains footnotes on the
Spectrum computer, but if there are no other instructions
ny, they apply to all models above
listed computers.
 DISK INTERFACE used with UNILITY
disk, which contains a certain amount
in utility programs. Disk size
can be 5.25 and 3.5, depending on
Your requirements.

 INTRODUCTION TO DISK SYSTEM.

 The disk system is professional
a way to store programs and data files
in home and personal computers
systems. This method has many advantages -
stv in front of systems based on len-
takh, such as cassette tape systems
tach. The disk system is more reliable, simpler
that is easier to use and faster
howling.
 Terminology related to flexible discs
Kam, often leads to confusion, so below
explanations are given.

 DISKS AND DISK DRIVES.

 The "BETA PLUS" disk interface can
use 5.25 disk drives
and 3.5.They are called floppy disks.We
we will simply call them disks. In us -
time-consuming most used type3.5 disks, 5.25 in home computers.
 Flexible disk, covered with plastic, diameter -
rum 5.25, stored in its own
small cabinet. Although the disks are “floppy”,
they should not be bent.Smaller ones
3.5 discs are stored in thick plastic
new casings, which means at least
re for some time that
their cost is higher than the cost of 5.25 discs,
although nowadays there are also those disks that
ry indicators are much lower than dis-
ki 5.25.
 Disks inserted into the drive rotate
inside their protective cases will soon
300 rpm to protect the discs better
quality have a plastic ring, installed
renovated around the edge of the central
version.
 Discs are formatted and recorded in the same
drive, can be read by others
type of drive, but if your drive
more than 3 years, then the reading quality
worsens 2-3 times, which leads to
corruption (killing information on disks),
which is not surprising in our time.
 The formatting process makes it possible
tr-dos and disk drive electronically separated
disc with 40 or 80 tracks. Number of sections
ditch per track and number of bytes per sector
depend on DOS.
 TR-DOS provides 16 sectors per up to
horn and 256 bytes per sector.
 Did you notice that we didn't say anything about
density. Terms unit density
and double density refer to packaging
ke data on the disk using the recording method.TR-DOS
uses double density- therefore
You get 16 sectors of 256 bytes
to the track.