The ASCII character includes the upper and lower case alphabet, numbers, special character can be stored in one byte of memory, i.e. half of a memory word in a 16-bit processor architecture or one full word in an 8-bit computer architecture.

• 雅舒字符包括大写和小写字母，数字，特别符号和控制代码。一雅舒字符可贮于一字节的记忆内，即是在16位数元处理机内占半个字，在8数元处理机则占一个字。