TNS MC

Also called Minifloppy computer.It was manufactured from 1989 by JZD AK Slušovice. The computer was inspired by or was successor to TNS SC. Hardware is based on U880D.Operating systems running on the computer: TNS-DOS(TurboDOS),CP/M.

This topic contains doubts or inaccuracies that need to be corrected. More information follows below.

Parts of this topic may be machine translated.

Cards

• CPU
• INT
• RAM 1M
• MAPF
• FDC 5 (5.25" drives, "minifloppy")
• BDL-L+ZIO (or is that a mistake? BootROM works with TVD!)
• SAXON

The TNC MC corresponds to the TNC GC, but instead of the 8" driver and the FDC III controller, the FDC5 controller is used (there are three changes: a jumper in the address decoder changes the address from the original base address 0x60 to 0x70, and a change in the values ​​of the two resistors that determine the amount of precompensation during recording )

BootROM

Boot loaders on TNS-MC computers report as "DMF1>"

or "DMF3>". They install the operating system from 5 1/4" floppy disks.

The "DMF1>" loader is intended only for TNS-MC computers which

are based on TNS-GC, while the "DMF3>" loader is intended for

all TNS-MCs (including those based on TNS-SC).

The system is booted either by pressing the [0] or [1] key. It

it depends on which drive the system is inserted

diskette.

System diskette for TNS-MC with these loaders is not possible

however, be used to boot the system on TNS-HC. Each of these

because bootloaders are required by a different OSBOOT boot program.

For TNS-MC/W, the system assumes that the computer is not

not adapted to autoboot from a Winchester disk,

introduces in the same way.

The TNS-MC(/W) computer can be retrofitted with 8" units.

In this case, it is possible to use the INT module from the TNS-GC computer

and boot the system in the same way as on the TNS-GC.

Inaccuracies/doubts related to the topic

Uncertain if the computer was derived from TNS SC or TNS GC.