Hardware Data and Specifications

BUS CMOS RAM CMOS clock CRTC Epson printer codes FDC HP Laserjet Hayes modem info Laserjet NEC 765 PIC PIT POST errors RS232 pins RTC UART capacitor values diagnostic codes disk drives drive specifications floppy controller game port hard disks drives hard drives hardware ports joystick keyboard commands keyboard controller modem commands parallel port port addresses ports printer port resistor values serial ports timer 765 6845 8042 8250 8253 8254 8259 8272 16450 16550