APPLIED ENGINEERING Sonic Blaster - Manual (Page 74)

Pathname
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A pathname is a path of directories required to access a specific file
on a disk device. To reference a file named MYDATA on volume /MY.DISK you
would use a ‘path’ to the file /MY.DISK/MYDATA. Some files may be additional
directories and those directories may contain references to more files or more
directories. The main volume directory is called the ‘root directory.” Directories
within the root directory are called subdirectories. If you want to refer to a file
contained in a subdirectory, you must include those intermediate subdirectory
names in your full pathname. Say you have a volume called
STREET and have a
subdirectory called HOUSE and have a file called ROOM the complete pathname to
access the file ROOM would be /STREET/HOUSE/ROOM. See: Prefix.
P h o n e P l u g s / J a c k s
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Phone plug (male connector) or jack (female connector) is a
single prong or single hole connector. The difference between the phone and
phono connectors is that the phono connectors have a circular metal extension
around the plug or hole.
P h o n e P l u g s / J a c k s
-
The phono plug (male connector) or jack (female
connector), also called RCA plug/jack, is used by many record players, tuners, etc.
for connecting one to the other. It has a single prong or hole with a circular
metal extension around the plug or hole.
P l a y b a c k R a t e
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The rate in Hz (samples per second) at which the file is played.
You can change the Sonic Blasters Playback Sample Rate setting even while the
file is being played. A higher playback rate heightens the pitch and speed (think
helium). A lower playback rate lowers the pitch and speed (think horror films).
P r e f i x
-
The ProDOS prefix is a standard default partial pathname that is added to
any file name you specify if your pathname is not fully qualified. A fully
qualified pathname is one that starts with the volume name followed by any
subdirectories that must be accessed to find the file in question. A prefix is used
to shorten the amount of typing you must do to specify a pathname to a file. As
an example, suppose you have a volume called
NATION and that volume has a
subdirectory called STATE and you have a program file called CITY that is in the
STATE subdirectory. Without a prefix, you would have to use
/NATION/STATE/CITY as the pathname to your file. You could, however, Set the
prefix to /NATION/STATE and then you would only have to specify CITY as your
pathname;
/NAT ION/STATE
would be automatically attached to the front of the
pathname you specified.
P r e f i x Directory
-
The Prefix Directory is the directory specified by the current
ProDOS prefix; i.e., if the prefix is set as /MY
.
DISK/GAGES then the Prefix
Directory would be the subdirectory called “GAMES” found in the /MY.DISK
volume directory.
Glossary 65