36. The American Standard Code for Information Interchange (ASCII) uses how many individual pulses for any given character?
(a) 1
(b) 2
(c) 7
(d) 8
37. What is the difference between binary coding and binary-coded decimal?
(a) BCD is pure binary.
(b) Binary coding has a decimal format.
(c) BCD has no decimal format.
(d) Binary coding is pure binary.
38. Binary-coded-decimal 0111 1001 0011 is ________ in binary.
(a) 011110010011
(b) 010110101111
(c) 001100110011
(d) 001100011001
39. Adding a zero to the leftmost bit of an ASCII code is called ________.
(a) extra zero
(b)
(c)
(d)
40. Resistors—usually 300 apiece—inserted between a decoder and a 7-segment display are ________.
(a) pull-up resistors to keep logic HIGH when the input is open
(b) sense resistors to enable a test of logic levels
(c) current limiting resistors for the 7-segment display
(d) surge resistors to prevent damage from power-line variations
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