Objectives for Section 1
After studying this section you should be able to do the following.
Recognise the terminology: character; string; integer; sequence; element (of a sequence); variable; identifier (of a variable); state (of a variable).
Use and interpret the notational conventions:
single inverted commas to show a character;
double inverted commas to show a string (sequence of characters);
‘’ to make explicit a space character;
the brackets [ and ] to delimit a sequence.