The first versions of ASCII used 7-bit codes, which meant they could attach a character to every binary number between 0000000 and 1111111, which is 0 to 128 in decimal.

Binary is a number system that only uses two digits, \(0\) and \(1\).. It was invented by German mathematician Gottfried Wilhelm Leibniz.. Binary code is used widely in computer programming, so it ...

It is simple to convert candidate_number to its binary representation, as follows:. candidate = 1 << (candidate_number - 1). Checking if a candidate is present in the set. As mentioned above, the set ...

The binary number will appear. With this example, Excel will display "01100100." The initial zero does not affect the number's magnitude, but it completes the byte.

Unlike our everyday counting system that uses tens, binary uses just two numbers, 0 and 1. Learn more with BBC Bitesize. Suitable for KS3 students.