HP 22687-90009 LearningTSB free download

File name 22687-90009_LearningTSB.pdf

HEWLETT if PACKARD preface BASIC means two things. First, BASIC means the Hewlett-Packard version of the BASIC program- ming language. And second, BASIC is the operating system provided with your computer (actually one of several timeshare systems offered by Hewlett-Packard.) When you are using BASIC the programming language, you construct a set of instructions (called statements) which are to be performed by the computer when your program is run. Statements can be simple instructions such as PRINT ((BLA-BLA" or involved instructions containing formulas and other intricacies. A program generally consists of many statements which tell the computer to perform a specific job. When a program is run, the statements are performed in the exact sequence that you number them. When you are talking directly to the BASIC operating system, you issue commands which are carried out immediately by the computer. Commands tell the operating system to run a program, create a file, or some such task, and are generally brief, consisting of one or two words. Commands are never included in a program. To master BASIC then, all you need to do is understand the various statements and commands available to you. This manual defines the most commonly used BASIC statements and commands, and will enable you to write simple, effective programs on any HP Timeshare BASIC system*. The complete set of BASIC statements and commands available to you is explained in the reference manual appropriate to your HP system. The latest HP Timeshare BASIC system is described in the HP 2000lACCESS BASIC Reference Manual (22687-90001). *Learning Timeshare BASIC is not applicable to the Hewlett-Packard Timeshared BASIC/2000, Level E, System. content Page the terminal ... 1 how to turn the terminal on and off ... 2 how to establish a connection ... 2 how to complete an entry ... 2 how to correct mistakes ... 2 how to break in ... 3 logging on and off ... '... 4 a program ... 6 tricks of the trade ... 8 operators ... 10 input ... 11 the LET statement ..