# Electronics - Number Systems and Codes

Exercise : Number Systems and Codes - True or False

- Number Systems and Codes - General Questions
- Number Systems and Codes - True or False
- Number Systems and Codes - Filling the Blanks

6.

When using the excess-3 code a value of 3 is added to each column of decimal digits before it is converted to a 4-bit binary code.

7.

ASCII codes are used strictly for representing the letters in the alphabet.

8.

64 hexadecimal equals 100 decimal.

9.

The addition 1 + 0 doesn't generate a carry bit; one does not exist.

10.

If you borrow from a position that contains a 0, you must borrow from the more significant bit that contains a 1. All 0s up to that point become 1s, and the digit last borrowed from becomes a 0.

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