11. Base 10 refers to which number system?
(a) binary coded decimal
(b) decimal
(c) octal
(d) hexadecimal
12. The number of bits used to store a BCD digit is:
(a) 8
(b) 4
(c) 1
(d) 2
13. A binary code that progresses such that only one bit changes between two successive codes is _________.
(a) 9’s complement code
(b) excess-3 code
(c) 8421 code
(d) gray code
14. Digital electronics is based on the _________ numbering system.
(a) decimal
(b) hexadecimal
(c) binary
(d) octal
15. The binary coded decimal (BCD) code is a system that represents each of the 10 decimal digits as a(n) ____________.
(a) 4-bit binary code
(b) 8-bit binary code
(c) 16-bit binary code
(d) ASCII code
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