They can be positive or negative.Ī string variable is just that – one that stores a string (list) of various characters. Numeric variables can store integer or decimal numbers. You must always know the type of information stored in a particular variable. Numeric, string (or text) and Boolean variables. Use meaningful variable names that help you (or other programmers) understand the purpose of the information stored by the variable.Įxamples of acceptable variable names: StartingTimeĮach variable is used to store information of a particular type. You cannot use a reserved word (keywords used by Small Basic).They may include letters, numbers, and underscore (_).Variables are used by Small Basic to hold information needed by an application. If you’ve ever used another programming language (or some version of BASIC), you will see equivalent structures in the language of Small Basic. This chapter provides an overview of the BASIC language used in the Small Basic environment. It uses the simple concepts of the early BASIC language with a modern development environment. Small Basic continues the tradition of BASIC programming. All the toy computers of the early 80’s (anyone remember TI99/4A, Commodore 64, Timex, Atari 400?) used BASIC for programming. Examples include: GW-Basic, QBasic, QuickBasic, Visual Basic. To purchase this book in its entirety, please see theĮvery BASIC written since then has been based on that early version. This chapter is adapted from the book The Developer’s Reference Guide To Microsoft Small Basic by Philip Conrod and Lou Tylee. You may have heard of these entrepreneurs: Bill Gates and Paul Allen! They sold their product on cassette tape for a cost of $350. Microcomputer needed a BASIC language interpreter. In the mid-1970's, two college students decided that the new Altair Many of the first computer simulation games (Star Trek, for example) were written in timeshare BASIC. When timesharing systems were introduced in the 1960’s, BASIC was the language of choice. The BASIC language was developed in the early 1960's at Dartmouth College as a device for teaching programming to “ordinary” people. Us the foundation needed to begin learning about Small Basic objects and writing more detailed programs. This chapter is essentially a self-contained guide to the Small Basic language. We will provide an overview of many of the elements of the language used in Small Basic. In this chapter, we are concerned with writing code for our programs.
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