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Precision Software Appli…tions Silver Collection 1
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Precision Software Applications Silver Collection Volume One (PSM) (1993).iso
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arcuspro.exe
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INSTALL.DOC
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1990-10-13
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An installation program INSTALL.EXE is provided with Arcus
Professional, you must use this to set up Arcus properly. Arcus
can be run from a hard disk or any combination of removable
disks. The hard disk option is by far the most efficient way of
running Arcus.
Hard Disk
~~~~~~~~~
You specify the letter assigned to the hard disk and install will
set up Arcus in a directory called ARCUS with a subdirectory
ARCUS\DATA used for storing Arcus work files and temporary data
files. You are also given the opportunity to specify your own
hard disk subdirectory. A configuration file will be generated
(ARCUS.SET) and a batch file (ARCUS.BAT) will be placed in the
root directory. The latter simply aligns the correct directory,
loads Hercules graphics support if required and runs Arcus in
response to ARCUS being entered at the DOS prompt. Please make
sure that one of your path assignments is the root directory
(eg PATH=C:\;C:\DOS).
Dual Removable Disks
~~~~~~~~~~~~~~~~~~~~
With this configuration Arcus uses one disk drive for the program
disks and the other for the data disks. If you are using 720k
diskettes you will have 2 program disks which you should mark
`Arcus Disk One' and `Arcus Disk Two' respectively. If you are
using 360K floppy disks you will have 3 program disks which
should be clearly labelled in a similar way. The drive used for
your data disks is set by answering Y to the question (Do you
have more than one disk drive (Y/N)?) then entering the path for
data storage as asked. The path would be for example B:\ if you
intended to use A:\ for the program disks on a conventional dual
disk system. Be sure to have a formatted disk in the data drive
at all times when running Arcus. Do not write protect the
program disks as temporary status files are written to them.
Single Removable Disk
~~~~~~~~~~~~~~~~~~~~~
This is a slightly more limited configuration in that temporary
data files are written to program disks, which may be space
limiting with huge files. If you have one 720k drive then you
may wish to install arcus as is you were installing on three 360k
floppy disks, this will give you more space but will mean more
disk swaps. You may also put a data disk in the drive when you
save / retrieve files, you will be prompted to do this but just
ignore the message if you wish to store the file on the program
disk. I do not recommend this configuration for frequent use
with large files.
1.2MB and 1.44MB disks
~~~~~~~~~~~~~~~~~~~~~~
Please install as 720k.
Hercules Monochrome Graphics
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To display the graphics screens in the regression and correlation
section of Arcus you will need to have loaded the MSHERC.COM
program first. Install handles this by creating the appropriate
batch file (ARCUS.BAT) if it detects an Hercules video card. If
you wish to modify this please bear in mind that MSHERC.COM
should be invoked before ARCUS.EXE and that it may be unloaded
by the parameter /D (ie MSHERC /D).
Technical Information
~~~~~~~~~~~~~~~~~~~~~
Arcus requires at least 384k of free memory to run (ie 512k
system + DOS). The normal data storage capacity of Arcus is 30
columns of 1500 single precision numbers (ie 45,000 total).
Arcus professional also allows you to extend this data storage
capacity to the limits of your computer's memory, thus data
capacity increases with available free memory. This is most
useful when you wish to enter more than 1500 numbers in a column.
If you only wish to enter 10 columns the column capacity should
be set to 10 and the column length will be extended to the
available memory. On my system the maximum in one column was
36,000 and in 30 columns 3360. Please avoid using huge data sets
when not using a hard disk.
Arcus graphics screen modes are selected by an internal system
analysis routine but this may be overridden by an option in the
regression and correlation menu. This screen lock is released
when you leave regression and correlation. Due to the wide
diversity of video cards available Arcus can not be guaranteed
to display every screen perfectly but it has been tested with
CGA, EGA, VGA and Hercules. Support has also been included for
Olivetti, ATT and MCGA. The Arcus pictorial statistics are
independent of graphics capabilities as they use standard ASCII
only.
Arcus will run much faster in the presence of a mathematical
coprocessor, as the burden of floating point maths is taken away
from the coprocessor emulator within Arcus. Some calculations
and sorting / ranking procedures will run up to 5 times faster.
A further speed and storage enhancement will be achieved by
ordering a special version of Arcus (ARCUS-Pro-286) which takes
advantage of the extended instruction set of the 286, 386 and 486
processors. This can be specified on your registration invoice
(see ARCUS.DOC).
For further information please see the Arcus-Pro Manual which you
receive upon registration.
Iain E. Buchan 1990