IBM TPC Keyboard I
Provided by the ASK Keyboard Directory
eg, P/N 4003444
IBM-made 83-key keyboard for the IBM 4450 TEMPEST PC I (aka, TPC I or TPC1), a TEMPESTed version of the IBM 5150 Personal Computer. This keyboard is a TEMPESTed version of the IBM Personal Computer Keyboard. Its controller electronics are shielded and it uses a male DE-9 plug instead of a 5-pin DIN plug. Besides branding, this keyboard appears to be identical to the IBM TPC Keyboard II and is also very similar to the IBM EMR Keyboard II.