MOSI and MISO at 89S52. No, you can't connect these pins to the PC serial port. The main reason is they are SPI pins, and you need to use the UART pins for this. Secondly, the voltages from the PC serial port are incompatible with your chip, so you you need something like the MAX232 suggested by AndrejaKo to translate the levels.
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The flight data recorder (FDR) is a device that preserves the recent history of the flight through the recording of dozens of parameters collected several times per second. The cockpit voice recorder (CVR) preserves the recent history of the sounds in the cockpit including the conversation of the pilots. The two recorders give an accurate testimony, narrating the aircraft's flight history, to assist in any later investigation.