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"Cathode Ray Tube"? "C RunTime"? Neither makes much sense to me; something else entirely?
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Cardiac resynchronization therapy (CRT) is treatment to help your heart beat with the right rhythm. It uses a pacemaker to restore the normal timing pattern of the heartbeat. The CRT pacemaker coordinates how timing of the upper heart chambers (atria) and the lower heart chambers (ventricles).
A Unit is a module in Pascal that contains code, procedures, variables, and type declarations. It is used to provide the functionality to an application program or other units. With units, programmers can write the code once and have the functionality used in many places.
PASCAL programs have three parts: Program and variable specification section; Subordinate procedure declarations; and. Main program executable code.
Turbo Pascal would eventually be renamed Borland Pascal, and later phased out, to be replaced by a more powerful Pascal Compiler, Delphi, for use on the Microsoft Windows (and the Kylix version for use on the Linux) operating system.
You're right, it's "Cathode Ray Tube". A thing from the past already :) The most common display type before 2005.
Most of the functions in the CRT unit are related to text-mode output and color setup, the only "interesting" things that could be done on an older non-graphical pre-VGA displays.
I'm not that old, but I remember back in 1995 I've been using the Turbo Pascal on a typical 13'' CRT display (they were synonymous with the "display" actually) and it's been 100% natural that the unit containing functions to manipulate that very CRT display is called CRT. Yes, there are also the key presses and stuff, but CRT is pretty natural. Don't know how to explain it better. It's like a 3.5'' floppy disk icon which is a metaphor for "Save file" menu item. Many young people haven't even seen those floppy disks and now it is only a sort of a "cultural legacy".
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