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HC-91 (40 Keys)

ICE Felix (Romania)

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Name HC-91 (40 Keys) ICE Felix  
Manufacturer ICE Felix (Romania) Type Desktop
Production start (mm-yyyy) 1991 Production end (mm-yyyy) - 1992
RAM 64Kb ROM 32Kb
CPU MMN80 (Romanian clone of the Z80) - 3.5 MHz Mhz
Operating System ZX-Spectrum BASIC , CP/M
Text (Cols x Rows) 32x24
Graphics 256x192 with 16 colours (8 colours with or without bright )
Sound Beeper
Storage memory Cassette
Serial port RS-232C Parallel port
Others port RGB, RF, Joystick
Original price   Currency original price
Units sold
Note This is a Sinclair ZX-Spectrum clone made in Romania by ICE FELIX.
There are two versions of the HC-91. One with 40 keys what are identical with the HC-85 and other with 50 keys.
The 40 keys version also sell under the name of HC-90
Configurations If a disk extension was used, then the HC-91 are CP/M compatible.
Of the 32Kb of ROM, 16Kb are for the BASIC, and 16Kb are for the CP/M operating system.
Of the RAM, only 48Kb are used in BASIC (like the Spectrum), while the full 64Kb of RAM are used under CP/M.
The disk EXTENSION adds 16Kb DISK/NETWORK/BIOS for BASIC, extensively modified from the 8Kb Sinclair Microdrive BIOS, with disk bios functions like the CP/M. 
User juanvm

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