Computers are built off of electronic circuits, in which there is either no voltage or there is some positive number (usually 3.3V, 5V or 12V). 1 represents an electric charge while 0 represents no charge.
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A 0 or 1 in a binary number is called a bit. A binary number is made up of only ones and zeroes.
If N>1, there are (2N-1) - (2N-1-1), otherwise, 1 nodes in the Nth level of a balanced binary tree.
The processor can basically understand instructions only in binary format. However for the programmer it would be difficult to write the complete source code in binary( 0 and 1) format and also it is more susceptible to error. To solve this problem of the programming world, certain languages were introduced that could be written in English like language for the ease of developer and later with the use of compiler it could be converted into machine level language(binary format). These kind of languages are called as high level languages. example: Java, C# etc
There is no record of when binary was first used. Given that the ancient Mesopotamian architects were using sexagesimal (base 60) they would have already known about binary encodings. However, it wasn't until India introduced the positional notation system that we use today (the Hindu-Arabic system) that we finally had a method of notating all bases in a common and consistent format. By the time Babbage invented the earliest computers, binary encoding was already a well-established method of digitising data to be processed by a machine.
Incomplete Binary Tree is a type of binary tree where we do not apply the following formula: 1. The Maximum number of nodes in a level is 2