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I found some 5 & 1/4 inch floppy disks   
 ==========================
 written Sep.21, 2006 by Carpediem2100

5-and-a-half-inch-floppydisk

I found some 5.25" floppy disks when rummaging through my old belongings.  These were purchased at Radio Shack (click).5floppy003m.jpg

  Note that this disk has 2 notches (click), one notch on either side.  We cut an extra notch  ourselves to make a single sided disk into a double sided disk.

Now, some people think  3.5" disks are strange enough, so to them, 5.25" disks must be like the "Model T" of portable storage media.  (Actually, our school had a new [Commodore?] Vic-20 computer where some games loaded via  cassette-tape.  This was much much slower than a floppy disk.)

Two of these 5.25" disks have Commodore 64 games on them, but I have no way to be certain.  The Commodore 64 was the hot home computer on the market before I learned of the Apple home computer.  (I can't remember which of my friends had a Commodore 64.)

  Games listed on the adhesive label:
   Disk1 side A
   -------------
    Quest For Tires
    Jungle Hunt
    Moon Patrol
    Football

  Disk1 side B
  ------------
    Gyruss
    Spy vs. Spy
    Quix ? (Spelling? Qix)
    Wizard of Wor
    Oilswell
    Park Patrol
    Grid Runner


  Disk2 side A
  ------------
    Supertrek 64 (Win-trek ancestor?)

  Disk2 side B
  ------------
    Le Cheapskate de Software "Copy-Q"


Some of the commands for the Commodore 64
LOAD "$", 8     --> program listing
LIST                 --> program listing
LOAD "*", 8,1  --> load first program
SAVE "title",8,1 --> save program
VERIFY            --> ?


5floppy006n.jpg

The other 5.25" disk had games for a computer at school.  It was the Commodore PET.  Unlike the colorful Commodore 64, the PET only had a monochromatic display.  It appears that this disk was used at least during 1986 (see  dot matrix printer list).
  5floppy009c.jpg
 
Some commands for the Commodore PET
HEADER"name", I20, D1   --> format disk
COPY D0 TO D1  --> copy disks
DSAVE "title", D1  --> save
SCRATCH "title", D1   --> erase (file?)
(?)  --> verify
cA (Shift + A)  --> decode (what does this do?)
DLOAD "title", D1  --> load
DL (Shift + L) "title", D1  --> load
?DS$  --> drive check

for the game TANKS, alter line 250 to change the graphics.


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