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A few running apps (Angry Birds, Safari, Infinity Blade, Flash cards), low CPU usage but lots of memory being used...ouch
The main PCB of the unit. It contains a Z80A CPU, Z80A-PIO (for the parallel interface), Z80A-DART (channel A for the RS232 interface, Channel B is switched between the current loop interface, cassette interface and internal strip printer), Z80A-CTC (baud rate clocks for the DART), 34K RAM, 30K ROM, the printer control microcontroller and glue logic.
1553 transceiver hybrid module
Reverse-engineering: www.eevblog.com/forum/projects/reverse-engineering-some-l...
Full description and reverse-engineering analysis here: www.eevblog.com/forum/projects/looking-inside-an-old-airc...