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.

01001000 01100101 01101100 01101100 01101111 00100001. Those ones and zeros might not look like anything to you, but in binary code the numbers are actually saying “Hello!”. Any code that uses just ...

Binary numbers can be intimidatingly long, but hexadecimals are the exact opposite. Hexadecimal numbers describe a number in fewer numbers than both binary and the base 10 number system. The first ...

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.

1 plus 1, plus the 1 carried, equals 3 or 11 in binary, so we put the sum as 1 and we carry 1 again, and so on. We end up with 11001010, which is the same as the number 202 in base ten. Each of ...

Do you know how to read binary codes? Pretty impressive if you do, since they’re a computer’s language. Binary coding is a system of counting that boils down to two digits—one (1) and ...