Click Here to visit our Sponsor
The Latest News ! The History of Computing The Magazine Have Fun there ! Buy books and goodies
  Click here to loginLogin Click here to print the pagePrinter ViewClick here to send a link to this page to a friendTell a FriendTell us what you think about this pageRate this PageMistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


C64 maze generator T-shirts!

see details
Ready prompt T-shirts!

see details
Spiral program T-shirts!

see details
Pixel Deer T-shirts!

see details
BASIC code T-shirts!

see details
Pak Pak Monster T-shirts!

see details
Breakout T-shirts!

see details
Shooting gallery T-shirts!

see details
Pixel adventure T-shirts!

see details
Vector ship T-shirts!

see details

M > MSI > 6800   


The MSI-6800 system was a bus structured system based on the SS50 bus developed by South West Technical Products (SWTPC) for the 6800 processor in 1975. All of the MSI boards were thus compatible with all existing SS50 circuit boards and interface cards.

The main system had a 16-slot motherboard and was available ready-built or in kit form for some parts. It could support dual floppy disc drive (2 x 160 KB) which can be integrated into the main unit. It can also support a 76 MB hard disk unit.

The minimum system was made of one CPU board, one interface board and one 8 KB RAM memory board. If an optional 6809 board was used, this can be expanded to 384 KB.


More information from chuck hinkle:
I worked at MSI in 1977-79, and I still have a catalog of theirs.
The price was $595 for a kit (contained chassis & hardware, power supply, mother board & connectors), CPU board & monitor, 8K RAM Memory Board, Interface Adapter Board, Serial Interface Board). $895 for a wired & tested system.
We had two operating systems. One was co-written by Glenn Taylor and Ed Wells (who also wrote the last version of the Basic interpreter). The other was purchased/licensed from Software Dynamics. Robert Uiterwyk's BASIC Interpreter ran in FDOS, and SD-BASIC Compiler ran in SDOS.
MSI also marketed business systems with 5MB and 10MB Winchester Hard Drives, starting in 1979.

See the 'Advert' section for a full copy of the MSI 1978 catalog.

NAME  6800
TYPE  Professional Computer
YEAR  1977
KEYBOARD  Teletype or video terminal
CPU  Motorola 6800
SPEED  2 Mhz.
RAM  From 8 KB to 64 KB (384 KB with 6809 board)
ROM  4 KB (MIKBUG monitor)
TEXT MODES  Depended of the video terminal used
I/O PORTS  Serial RS232C, 2 x I/O ports
BUILT IN MEDIA  Tape recorder or floppy disc drive
OS  Flex with FDD version
POWER SUPPLY  Built-in power supply (18 Amp.)
PERIPHERALS  All SS50 based boards
PRICE  $595 in kit form, $895 assembled

retro computing t-shirts and goodies
3D Cubes
BASIC code
C64 maze generator
Pak Pak Monster
Pixel adventure
Pixel Deer
Ready prompt
Shooting gallery
Spiral program
Vector ship

Related Ebay auctions in real time - click to buy yours

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -