EPS-16 PLUS Musician's Manual
Section 11 — Storage Functions
• System Files — There are two additional types of files which have to do with
system operation:
> GLOBAL PARAMETERS — Global Parameter files let you save the system,
or "global" parameters, those contained on the EDIT/System•MIDI page, so that
you can save and reload a new system configuration in seconds. This is handy
if you use the EPS-16 PLUS in a number of different applications which
require different settings for MIDI mode, MIDI base channel, master tuning,
etc.
> OS — The computer program which controls the EPS-16 PLUS (the
Operating System, or O.S.) is contained on a disk and is loaded into RAM
upon booting. The disk that came with your EPS-16 PLUS contains the
current O.S. Operating System upgrades will be available from your authorized
ENSONIQ dealer as they are released Also, if the EPS-16 PLUS data should
ever become corrupted, you might be prompted to reload the O.S. from disk. A
function on the COMMAND/System•MIDI page allows you to copy the O.S. to
a different disk.
> DIRECTORIES and MACROS — The file structure of the EPS-16 PLUS is
set up so that each file category, called a directory, can hold up to 38 files. If
any additional files are needed within the directory, a sub-directory must be
created to hold those extra files. When working with a directory/file structure
that is several layers deep, it is convenient to have a quick way to get to a sub-
directory that is down deep in the structure. MACROS allow you to do that by
using direct-dialing in much the same way that direct-dialing is used to access
commands and parameters. Because it is highly unlikely that you will need to
use directories, sub-directories, and macros when using floppy disks, they are
covered in detail in the SCSI operation manual.
Disk Capacity — Bytes, Blocks and Files
Each double-sided 3.5" micro-floppy disk will hold 800k bytes of EPS-16 PLUS
. data, which translates into about 1600 Blocks. (A Block is a handy unit which
the EPS-16 PLUS uses to measure disk memory — 1 Block=512 bytes; 2
Blocks=lk bytes.)
EPS-16 PLUS disk files vary in size — how many will fit on a disk depends on
the number and size of the files.
There are limits to the number of files on a disk:
• Each disk can hold a maximum of 156 files.
• A disk can hold up to 60 files of any one file type, but not more than the total of
156 files of all types for a single disk.
Disk Storage
11 - 3
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