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Who wrote this stuff?
This trivia was originally written by Jim Brain as part of the now long defunct C= Hacking Magazine, but happily Jim has kindly agreed to let me reproduce it in HTML-ized format for retro computing fans everywhere.

If you are interested in seeing the Commodore Trivia digests in their original form, take a look at this website.

For those who are interested, these pages were generated from the original text files using Perl and Velocity (and a nice template originally found here)

 
TRIVIA 38A

$250)
	For years, Commodore owners have purchased Commodore printers with
        model numbers like MPS801, MPS802, MPS802, and MPS1000.  What does
        'MPS' stand for?

	Matrix Printer Serial.

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$251)
	For the introduction of the 264 Series (Plus/4), Commodore produced
        a letter quality printer called the DPS1101.  What does 'DPS' stand
        for?
     

	Daisy Print Serial

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$252)
	What does CBM DOS error number 75 mean and which drive(s) does it
        appear in?
     

	I was looking for "Format Error".  This error occurs on the 1581.
        However, Todd Elliott mentions this also appears on the 8250 as
	"Format Speed Error".

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$253)
	What does CBM DOS error number 76 mean and which drive(s) does it
        appear in?
     

	Controller Error.  It appears first on the 1581.  It implied that
        the MFM controller was not functioning correctly.

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$254)
	How many characters per inch does a VIC 1515 printer print when in
        normal mode?
     

	10 cpi.

Top
$255)
	How large (in bytes) is the internal VIC 1525 printer buffer?
     

	90 bytes.  

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$256)
	How many revolutions per minute does a 1541 disk drive disk
        rotate at?
     		 

	300 rpm

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$257)
	On Commodore disk drives, where is track 1 located: outside, middle,
        or inside of disk?				  
     

	Outside.

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$258)
	Which Commodore 8-bit machine(s) came stock with stereo SID sound?
     	    			  		  

	The Commodore 64DX (65)

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$259)
	On the 64 and 128, which joystick port is closest to the power
        connector: 1 or 2?
     

	Joystick Port 2

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$25A)
	The Commodore 1520 plotter can print in how many colors?
     

	4 colors.  Default colors are red, green, blue, and black.

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$25B)
	The 8050 disk drive creates how many tracks on a floppy disk?
     

	77

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$25C)
	What dot matrix printer matches the color scheme of the CBM Plus/4?
     

	The MPS 803.

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$25D)
	How many "mirrors" of the VIC-II IC registers appear in the 64 memory map?
     

	16.  The VIC-II only contains enough addressing for 64 bytes, so 
        the registers repeat every 64 bytes.

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$25E)
	Which location in C64 memory contains the 6510 Data Direction Register?
     

	Location 0.

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$25F)
	What is the significance of $fffe-$ffff in 65XX CPUs?
     

	Whenever an IRQ happens, the CPU fetches the location of the routine
        that will handle the IRQ from these addresses.
The information in this between the lines marked by (BEGIN) and (END)
is copyright (c)1997 by Jim Brain.  Provided that the information
between the (BEGIN) and (END) lines is not changed except to correct
typographical errors, the so marked copyrighted information may be
reproduced in its entirety on other networks or in other mediums. For 
more information about this contest or using these questions, please 
contact the Commodore Trivia Administrator.

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