UNIT-I

How many bits are required to represent the decimal numbers in the range 0 to 999 using straight binary code? Using BCD codes? (999) 10 = ( 1111100111 ) 2 → 10 bits are required using straight binary code (999) 10 = ( 1001 1001 1001 ) BCD → 12 bits are required using BCD code. Show that the excess-3 code is self-complementing. ................
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