Telmac TMC-600 (Sarja II)
Telmac TMC-600 (Sarja II)



Setname:  tmc600s2   
Year: 1982
Manufacturer: Telercas Oy
Status: imperfect  badworks
Type: Home Computer
Emulation info
Overall emulation:  good   
Color emulation:  good  
Sound emulation:  imperfect  
Graphics emulation:  good  
Savestates:  supported   

Tech info
 Base hardware: (available in all slot configurations)
CDP1802 ("cdp1802")cpu 3579545 Hz
Speaker ("mono")audio
RCA CDP1869 ("cdp1869")audio 5626000 Hz
Screen ("screen")raster horizontal 294 x 294 @ 50.089031
Media devices
cassette ("cassette") cassette cass wav
RAM options
8K 8192
16K 16384
24K 24576

 Optional hardware: (available with specific slot configurations)

 Configure the slot options for tmc600s2:
 Slot Value

Show detailed info about 'Slot Options' of this system
Slot options

NameValueCompatible device(s)
centronics ap2000ap2000
 printer centronics_printer

Romset info
ROM NameSizeCRC32SHA1Dump StateBIOS option
sb304096 95d1292a1fa52d59d3005f8ac74a32c2164fdb22947c2748good
sb314096 2c8f3d17f14e8adbcddeaeaa29b1e7f3dfa741f4e230f599good
sb324096 dd58a128be9bdb0fc5e0cc3dcc7f2fb7ccab69bf5b043803good
sb334096 b7d241fa6f3eadf86c4e3aaf93d123e302a18dc4d9db964bgood
1511824096 c1a8d9d84552e1f06d0e338ba7b0f1c3a20b8a51c27dafdegood
chargen4096 93f92cbf371156fb38fa5319c6fde537ccf14eed94e7adfbgood


* CPU: 8-bit CDP1802 3.58 MHz
* Memory: 20-28 KB internal ROM operating system, 8 KB RAM
* Sound: 8 octaves, white noise generator, internal speaker
* Color: 8 colors, blink attribute
* Resolution: 240 x 216 pixels (40 x 24 or 20 x 24 characters)
* Connectors: Tape recorder (DIN), EURO expansion bus, composite video, Centronics printer, PAL TV


MESS supports for the tmc600s2 a tape drive and up to four floppy drives. The former one supports .wav tapes and uses the "cassette" (cass) device; the latter ones support disk images in .dsk format and use "floppydisk1" (flop1) to "floppydisk4" (flop4).

Also notice that the "printer" (prin) is emulated as well and a "quickload" (quik) feature is available for .sbp files.


* press C at boot prompt to start the computer
* type HELP for a list of commands
* type SCREEN @4700 to see a picture


This system requires full keyboard emulation to work correctly. At startup, full keyboard emulation mode is enabled by default. Whilst in full keyboard emulation mode, some key associated functionality may be disabled (like the ESC key for EXIT). The keyboard emulation mode is toggled using the "Scroll Lock" key (by default).

RAM options

Different RAM configurations are possible for the tmc600s2 in MESS. You can switch between them, changing the -ramsize parameter. At command line, you simply have to add ''-ramsize ram_value'', where //ram_value// can assume one of the following values

8k (default)

Known Issues

* keyboard repeat delay varies, natural keyboard may help
* white noise is not emulated
* real-time clock is not emulated

History and Trivia

Telmac TMC-600 is the only microcomputer ever designed and manufactured in Finland. Only 600 units were produced, hence the model name. The computer casing was available in black and brown. The computer was designed by Timo Virtaneva and Hannu Peiponen. Two versions were released, the later allowing the connection of multiple peripherals simultaneously.

The TMC-700 expansion added Centronics interface with a custom connector, an RF modulator, and a real-time clock. 360KB 5.25" and 8" floppy disk drives could be connected using an external controller card. Other add-ons included RAM expansions, an I/O controller, an A/D converter, an RS-232C controller, a B/W 132-character display controller, and a parallel/serial slave computer. The TMC-600 was designed also for use in industrial process control applications, so BASIC ROMs with user-customized keywords were available on order.

The manufacturer, Telercas Oy, was an early Finnish distributor for RCA semiconductors. Telercas Oy was merged with the Finnish electronics retailer Yleiselektroniikka Oy in 1988.


* Pelikonepeijoonit --

Edit the History info for this game.


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