56 Summary Three main types of variables are supported in this version of BASIC; they are integer, real and string. Integer Real String Example 346 9.847 “HELLO” Typical variable A% A Name SIZE% SIZE SIZE$ Maximum size 2,147,483,647 1.7 Ч 10 38 255 characters Accuracy 1 digit 9 sig figs - Stored in 32 bits 40 bits ASCII values All variable names can contain as many characters as required and all characters are used to identify the variable. Variable names may contain capital letters, lower case letters and numbers and the underline character. Variable names must start with a letter and must not start with a BASIC keyword.