Beagle Bros Prontodos "Updater" Disk Prontodos is a high-compatibility speeded version of DOS 3.3. For most DOS tasks, Prontodos is 3-4 times faster than standard Apple DOS 3.3. Prontodos uses the same commands as standard DOS 3.3. The Prontodos Updater disk boots Prontodos. Selecting the PRONTO UPDATE option lets you change a bootable standard DOS 3.3 diskette to one that boots Prontodos. The update to Prontodos changes just a few parts of DOS on bootable disks. Files and disk layout are not affected. Beagle recommends that you make a backup of a diskette before doing this modification. Try out the changed disk and make sure everything works the way it should. Note: Prontodos uses a block of memory left blank in the early (1980) release of DOS 3.3. Later versions of DOS 3.3 appear to use this area. So, it is probably a good idea to do the Prontodos update only on diskettes which boot the early DOS 3.3. (A good check seems to be to boot the diskette in questiont, get to the BASIC prompt, and enter ... ?PEEK(46725) The result should be 165 for early versions of DOS 3.3.) Another way to use the Prontodos disk is to boot it and INIT blank disks. (Diskettes must be 5.25" DD "360k" types. 1.2MB HD diskettes will not work with most Apple II drives.) You can use Copy II Plus or some other file copy utility to copy files from old DOS 3.3 diskettes to the Prontodos disks. For example, after booting the Prontodos disk, you exit to the BASIC prompt, swap in a blank diskette, and enter ... NEW (to get rid of the Beagle program in memory) Then you can enter a short HELLO program. 10 PRINT "PRONTODOS" 20 END Then, you can INIT one or more diskettes with ... INIT HELLO This will produce a nearly empty diskette that will boot Prontodos and start the HELLO program. (Later on, you can overwrite the HELLO program with a different program you'd like to run.) As with DOS 3.3, once Prontodos is loaded in from any bootable disk, it can INIT other Prontodos disks. Prontodos.zip includes the Prontodos updater disk in .dsk disk image form and .sdk ShrinkIt whole-disk archive form: Prontodos.dsk- a bootable DOS 3.3 .dsk disk image This file may be used on an Apple II emulator or converted back to diskette form via a PC-->Apple2 ADT transfer (or, the file may be converted to diskette on a 128k Apple II via DSK2FILE or, on a IIgs, via ASIMOV). See Csa2 File Utilities FAQs. Prontodos.sdk- a bootable DOS 3.3 shrinked disk This file should be unshrinked to 5.25" diskette using 8-bit ShrinkIt. See Csa2 File Utilities FAQs for more about ShrinkIt. Rubywand