Labels:bulletin board | monitor | paper | reckoner | vegetarianism OCR: SYSTEM SPECIFICATIONS 425 Main Processor Board ZSOA CPU Data word width 8 bits MHz primary clock Memory 124K RAM (bank switched) video RAM, 4K of video-attribute RAM 8K EPROM character- -font RAM 2K scratchpad RAM RAM cycle time: 200 ns ROM cycle time: 300 ns Ports Z80A SIO/2 serial communications controller two stan- dard female DB-25 connectors provided, with full range (50- 9600 of baud rates software-selectable Motorola 6821 PIA (Parallel Interface Adaptor) IEEE- 488 may be configured Centronics- -type port DMA port internal Display 7-inch amber screen Two 128 -character sets (English standard, plus user-defined alternate Writable character font lines of 80 characters each 8-by-10 dop matrix for each character cell 12-bit-wide display memory 7-bitASCII plus bit for each of the followin ...
