<Tr> <Th> Model identifier </Th> <Td_colspan="2"> iMac13, 1 </Td> <Td_colspan="2"> iMac13, 2 </Td> <Td> iMac13, 1 </Td> <Td_colspan="2"> iMac14, 1 </Td> <Td_colspan="2"> iMac14, 2 </Td> <Td> iMac14, 4 </Td> <Td_colspan="2"> iMac16, 1 </Td> <Td> iMac18, 1 </Td> </Tr> <Tr> <Th> EMC no . </Th> <Td_colspan="2"> 2544 </Td> <Td_colspan="2"> 2546 </Td> <Td> 2544 </Td> <Td_colspan="2"> 2638 </Td> <Td_colspan="2"> 2639 </Td> <Td> 2805 </Td> <Td_colspan="2"> 2889 </Td> <Td> (Data unknown / missing .) </Td> </Tr> <Tr> <Th> Enclosure </Th> <Td_colspan="13"> Aluminum and glass </Td> </Tr> <Tr> <Th> Display </Th> <Td_colspan="2"> 21.5 in (550 mm), 1920 × 1080 </Td> <Td_colspan="2"> 27 in (690 mm), 2560 × 1440 </Td> <Td> 21.5 in (550 mm), 1920 × 1080 </Td> <Td_colspan="2"> 21.5 in (550 mm), 1920 × 1080 </Td> <Td_colspan="2"> 27 in (690 mm), 2560 × 1440 </Td> <Td_colspan="4"> 21.5 in (550 mm), 1920 × 1080 </Td> </Tr>

Where is the processor located in an imac