Review: why computer must use
binary numbers
Why a (electronic) computer must use binary numbers:
... because the way computer memory works !!
The "Binary Number System"
Intro: Number Systems
The decimal number systems and decimal numbers
Positional Number System:
the value represented by
a decimal number
Binary numbers
The binary positional number system
The binary positional number system:
value of
a binary number
Formula to find the (decimal) value of a binary number:
The binary positional number system -
example
Sample numerical values and their representation in
decimal and binary
Notice that the some numbers (e.g. 10 and 11) are ambiguous !!!
We write 10(10) for decimal number 10
We write 10(2) for binary number 10
Do you understand this comment ?
Do you understand this comment ?
The number 10 is a binary number and represents the value 2 (two) !!!