UVA CS 2130 Exam 1 questions and answers with solutions.

UVA CS 2130 Exam 1 questions and answers
with solutions


binary number - ANSWER 0 or 1


trinary - ANSWER 3 positions


Transistor - ANSWER a switch that can be switched on to let electricity
flow from a first to second wire, or switched off, controlled by electricity
on a third wire


and gate - ANSWER a b. output
000
010
100
111


or gate - ANSWER A logic circuit whose output is 1 when at least one
input is 1.


a b. output
000

, 011
101
111


XOR Gate - ANSWER Outputs 1 when inputs are different. (Exclusive OR)


a b. output
000
011
101
110


NOT gate - ANSWER Also called an INVERTER gate or an inverting buffer.
A logic gate that changes its input logic level to the opposite state.


turns ones to 0


Multiplexer - ANSWER a hardware device that allows several nodes to
share one communication channel


essentially a bunch or wires thats funnel into one output


built from and, or, and not gates