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IBM System/23 Datamaster
...amaster has a rich set of Intel peripherals which consist of a 8251 USART, 8253 PIT, three 8255 PPI, 8257 DMA, 8259 PIC and 8275 CRTC. All of them, includi | 24h-27h || 8253 || PIT ...

25 KB (4,011 words) - 07:53, 19 September 2025