A POLITICAL ANNOUNCEMENT 5.3 Renumbering (RENUM) 5.4 Exercise 5.5 FUNCTIONS 5.7 More Exercises 5.8 Exercise using GOSUBS or FUNCTIONS 5.9 Extra Credit 6. GOSUBS and FUNCTIONS 5.1 Why GOSUBS? 5.2. Arrays and DATA Statements 4.1 Arrays 4.2 Exercises 4.3 DATA Statements 4.4 Exercises 4.5 Final Exercise 5. Loops, Colors and Sound 3.1 Looping 3.2 Exercise: Make this game more interactive 3.3 Colors 3.4 Exercise 3.5 Sounds 4. Structure and Style 2.1 More BASIC Controls 2.2 IF THEN Statements 2.3 Check Book Balancer 2.4 Summary 2.5 Exercises 3. Introduction 1.1 Basic History 1.2 Getting Started 1.3 Exercises 2. Not only programming, but it is also possible to modify the already developed GW-BASIC software.+-+ Despite its simplicity, users can write simple and complex types of programs for their computers With GW-BASIC. Microsoft’s GW-BASIC is a very easy to learn and simple programming language because it has understandable mathematical notions and statements which are very similar to that of the normal English language. For instance, users are recommended to not do run a program from the internet without first inspecting the source completely. In nutshell, GW-BASIC and programs developed with it have almost complete access to the host computer therefore, users should treat them by keeping in mind that relevant and appropriate cautions are necessary. However, while applying security measures, GW-BASIC avoids sandboxing its functions and programs in any notable way. GW-BASIC makes some choices by default while keeping the basic security aspects in mind. Variables are particular groups of alphabets and numeric that are assigned with values and provide information when they are executed. For example, if the function of TIME$ and DATE$ is entered then the output is time and date that is known by the system. While String Functions are strings based.
Numeric Functions are mathematical calculations. Another part of GW-BASIC is Functions i-e numeric functions or string functions. On the other hand, a statement like GOTO, ON ERROR is a group of keywords generally used in program lines as the program’s part. They are generally used for program maintenance including loading, editing, or saving. The difference between both entities is that commands usually are executed in direct mode or on command level. Commands and statements, both are instructions that can be executed. Keywords such as GOTO, PRINT, and RETURN have a particular significance for the Interpreter and they are interpreted as a part of commands and statements. GW-BASIC programming is done with elements including keywords, statements, commands, variables, and functions. GW-BASIC functions, statements, variables, and commands: Indirect Mode is utilized mainly to enter programs and in this mode Program lines always follow the line numbers and these program lines are stored in memory and are executed when the command RUN is entered. Direct mode is good for debugging and for calculation so users can quickly compute figures without requiring a complete program. However, indirect mode instructions are lost once they are executed. It is able to display the logical operations and arithmetical results immediately and can also store them to be used later. Direct Mode executes the commands and statements as they are entered. From this point, you can use one of the two modes of GW-BASIC i-e direct and indirect mode. Once you have loaded and initialized on your computers, an Ok prompt is displayed on the screens which indicate that GW-BASIC is now at the command level and is ready for your commands.
GW-BASIC functions, statements, variables, and commands:.