1. Define the following QBASIC statements.
a) REM Statement
b) END Statement
c) LET Statement
d) INPUT Statement
e) PRINT Staternent
f) CLS Statement
Answers
Answer:
a) Short for remark, REM is a statement placed in system files such as the autoexec. bat to skip lines from loading. A remark is created by placing "REM" (followed by a space) in front of a line. Doing this remarks the line from loading and with batch files also doesn't show the line if echo is off.
b) The end statement is the last line of the program or function. The stop or return statements are used for normal termination and exit is used for abnormal termination.
c) The let statement is a holdover from the original Dartmouth BASIC, and is only included for compatibility. It is supported to facilitate program readability
d) An input/output statement or IO statement is a portion of a program that instructs a computer how to read and process information. It pertains to gather information from an input device, or sending information to an output device.
e) The print statement is used to send output to the standard output unit ( usually your monitor, or sometimes your printer ) of your computer system.
f) In computing, CLS (for clear screen) is a command used by the command line interpreters COMMAND.COM and CMD. EXE on DOS, OS/2 and Microsoft Windows operating systems to clear the screen or console window of commands and any output generated by them.
Explanation:
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