Vector Graphic Vector 4 - Page 109

VECTOR 4 USER'S MANUAL
INTRODUCTION TO VECTOR 4 CP/M
Under normal circumstances, a user area is just like a disk: if the disk isn't in
the drive, you can't run the programs on it, and if you aren't logged onto the
right user area, you can't access the data. For instance, if you are logged
into B5 and you enter DIR, the screen will display the file names for user
area 5 on disk B; any files in other user areas will not be displayed.
You
will get a similar result for whatever program or command you enter: if
you add, change, or delete files, they will show up as added, changed, or
deleted in the current user area. The COM files indicated on the directory
for User
0 of the System diskette are accessible from any user area. Any
command file which exists in User
Area 0 can be run from any user area.
If you return to the A drive now, the operating system will write data to
Area 5 on the disk in Drive A. Also, note that you will need to specify
source (and sometimes
target) user areas when you copy information back and
forth between disks. (The specific command lines you enter are explained
under the
section on the PIP command.)
Telling The Computer Where To Go
What if you want to run a program which does not exist on any user area of
the currently-logged disk, but which does exist on another drive? You have
two choices. You can either copy the program you want from the drive where
it exists, to the drive where. you are logged; or you can simply enter the
command line with the drive in front of it.
Here's an example. Let's say y-ou wanted to find out how much space is left
on a floppy disk loaded in Drive B, where you are currently logged. The
STAT program will do this for you, but when you enter STAT [RETURN], the
screen simply says, "STAT?" So you enter DIR [RETURN], and you see that
the program STAT.COM is not on your diskette. But you know that it is on
the diskette in Drive A. So you can enter:
A:S1'AT [RETURN]
The screen will display:
B)A:S1'AT [RETURN]
A: R/O, Space: Illk
~=:::5 B: R/W, Space: .llk
- B)
Rev. A - 9-01-82 7100-0001
Vll-23