EGR 2400 Exam 1 With Questions and Answers | All
Questions and Correct Answers | Graded A+ | Verified
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divide the decimal number by
how do you convert from increments of 2, the binary
decimal to binary? number will be the remainders
of the divisions taken from the
bottom up
how do you convert from divide by 8 and take the remainders
a decimal (base 10) to an (divide the decimal number by the base you want to convert
octal number? to)
0-9, A, B, C,
D, E, F A= 10
B=1
hexadecimal numbers 1
C=
12
D= 13
E= 14
F = 15
what does the MSB (most 0: positive
significant bit) of a number 1: negative
represent?
logic gates
MSB = 0: the number is positive
the remaining n-1 bits represent the magnitude
1's Complement
MSB = 1: the number is negative
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, 8/13/25, 1:23 AM EGR 2400 Exam 1 With Questions and Answers | All Questions and Correct Answers | Graded A+ | Verified Answers | Just Release…
the remaining n-1 bits do not
represent the magnitude to change
the sign- invert all the bits
MSB = 0: the number is positive and the remaining
n-1 bits represent the magnitude
2's Complement
MSB = 1, the number is negative, and the
remaining n-1 bits DO NOT represent the
magnitude
-to change the sign, invert all the bits and add 1 to the LSB
gray code allows only one bit to change between successive numbers
binary coded decimal
-encoding scheme that encodes
BCD code
using the 4 bit binary equivalent
an open input will float high
in a multiple input AND
-if it does not float high, then the open input will
gate, what happens to
automatically make the output go low
an open input and why?
outputs a 1 when exactly one input is a 1
-inputs must be different to
XOR gate
output a high "wink detector"
outputs a high when the
inputs are equal two lows or
XNOR
two highs produce a high
switches
how can gates be
implemented in real life?
basically a miniaturized switch
what is a transistor?
ex: a TTL chip
invert all signs and switch ORs to ANDs (vice versa)
DeMorgan's Theorem
ex: -( X & Y & Z) = -X | -Y | -Z
Sum of Products
(SOP) ex: m₀,
minterm
m₁, m₂
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