|Name||HC-91 (40 Keys)|
|Manufacturer||ICE Felix (Romania)||Type||Desktop|
|Production start (mm-yyyy)||1991||Production end (mm-yyyy)||- 1992|
|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 )|
|Serial port||RS-232C||Parallel port|
|Others port||RGB, RF, Joystick|
|Original price||Currency original price|
|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.
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