Each character is assigned a number from 0 to 127. As well the 26 letters of the [[English alphabet]] in upper and lower case, many common punctuation symbols are assigned codes, as well as [[control characters]], such as backspace, carriage return and linefeed. | Each character is assigned a number from 0 to 127. As well the 26 letters of the [[English alphabet]] in upper and lower case, many common punctuation symbols are assigned codes, as well as [[control characters]], such as backspace, carriage return and linefeed. |