CMPT-101 Lecture Notes - Lecture 14: Computer Memory, Capacitor, Or Gate
30 Mar 2016
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Document Summary
In order to do anything, computers need millions and billions of bytes. In python, the statement 5+3 is solved by converting 5 and 3 into binary, and then added in binary before being converted back and having the result shown to us. Representation of two states is fundamental in digital storage technology. We abstract the two states and call an instance a binary digit, or bit. By combining multiple bits, we can use the pattern of 0s and 1s to encode information; binary. Given binary encoded information, we manipulate bits using boolean operations. With or, at least one must be true. With not, adding the symbol for not makes it false if true and true if false. Truth tables and gates take bits as input and provide bits as output depending on the input and order. Standard cell size is 8 bits or a byte. Every byte in ram has a unique address.
