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# Requirements

SISCAD-P needs the following hard- and software requirements:

- Architecture: INTEL 80486/Pentium
  PC's equipped with INTEL CPU's at least 80486/25 MHz are suited for running SISCAD-P. Even more important than the CPU may be the amount of installed memory. So it might occur, that SISCAD-P running on a Pentium 90 MHz with 8 MB of memory may perform lower than on a 80486/66 MHz equipped with 32 MB of memory.

- Main memory: min. 16 MB, recommended 32 MB
  SISCAD-P is a very complex program which requires at least 16 MB of memory. If you plan to design larger drawings 24 MB or even 32 MB are recommended. If you like to test SISCAD-P on a PC with less than 16 MB, remember to install enough swap-space.

- Harddisk space: ca. 30 MB
  SISCAD-P needs about 30 MB of disk space; the size depends on the packages installed.
  (see section Distribution Packages - Size of Packages)

- Linux kernel: version 1.0
  Beginning with the kernel version 1.0, Linux is very reliable and suited for professional use. Therefore SISCAD-P should run on any Linux kernel version greater 1.0 regarding the other requirements described above.

- Window-System: X11R6
  SISCAD-P was compiled with the X11R6 libraries and therefore it needs X11R6 at runtime.

- Window manager: fvwm, mwm
  SISCAD-P is a OSF/Motif program but it does not necessarily require OSF/Motif window manager at runtime. Other window managers, for instance fvwm, are suited as well. When installed the OSF/Motif window manager mwm of course can also be used.

The complete SISCAD-P documentation is available as HTML or as PostScript document. To view or print these documents you need the following:

- WWW Browser
  To online read the HTML documents you need a WWW-Browser (e.g. Mosaic, Netscape, Chimera, Arena). This WWW-Browser is not part of the SISCAD-P distribution and must be installed separately.

- PostScript printer
  To print the PostScript documentation you need a printer which understands the PostScript language or a printer which in conjunction with a driver/filter program (e.g. Ghostscript) understands PostScript language too.

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