JoSS: Joy of Sharing Science No: 3
Pesticides are taking innocent lives! Elif Demir, Yasemin Yüksel Your brain actually listens to your gut feeling. Ceylin Gün Your calculator is just a bunch of electrical switches. Zanyar Oğurlu, Eda Toprak, Mehmet Ekin Doğan
Pesticides are taking innocent lives!
Elif Demir, Yasemin Yüksel
Your brain actually listens to your gut feeling.
Ceylin Gün
Your calculator is just a bunch of electrical switches.
Zanyar Oğurlu, Eda Toprak, Mehmet Ekin Doğan
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Your calculator is just a bunch of electrical switches
(Image taken from Pamela Fox, “Logic gates”)
Having one wire with electricity flowing through and one not means that the circuit
has the inputs 1 and 0, and since this is an AND operation, not having both wires in
the true state will output 0.
XOR (Exclusive OR) Gates:
The XOR gate output is at logic 1 when only one of its inputs is 1. If both wires
connected to the gate are on or off, the output will be logic 0. This logic function
and its truth table in a circuit can be seen from the figure below.
The AND and XOR gates are specifically useful in mathematical operations carried
out by the computers in binary.
How does your calculator add numbers?
Let’s take two binary numbers into account as an example: 0101 and 1101. In the
most basic terms, in the way we learned in the 1st grade, how do we add two
numbers?
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