49 INT 49 - SYSTEM DATA - NON-KEYBOARD SCAN-CODE TRANSLATION TABLE (PCjr)
49 INT 49 - Z100 - Slave 8259 - S100 vectored line 1
49 INT 49 - Watstar PC Network data pointer 2
49 INT 49 - Acorn BBC Master 512 - "OSASCI" - WRITE CHARACTER TO CUR OUTPUT STREAM
49 INT 49 - Tandy 2000 - BOOTSTRAP LOADER

 00 01 02 03       06 07 08 09 0A          0E   
 10 11 12 13 14 15 16 17 18