Merge https://github.com/DCPROGS/DCDOS

Author: remislp

README.md

@@ -1,2 +1,15 @@
 # DCDOS
-DC FORTRAN compiled DOS programs
+DCDOS repository contains the original compiled DC DOS programs written in Fortran, with GINO graphics.
+Some programs have been rewriten in FORTRAN to compile for Windows (HJCFIT and AUTPLOT: see DCWIN repository) and some are being rewriten in pure Python (theoretical calculation programs: see SCALCS repository; curve fitting program: see CVFIT repository) or Python/C++ (see HJCFIT repository).  However, some programs are available only for DOS, especially the crucial SCAN program for idealisation of raw single-channel data. 
+The DOS programs run on most PCs, but to run them on a Windows 7 or Windows 8 machine, you must install DOSBOX first. The following method works on a 64 bit Windows 7 machine:
+- Download the programs and stuff needed to run them as a zip file by clicking button'Download ZIP' or by cloning all the repository using git (command 'got clone https://github.com/DCPROGS/DCDOS.git'). 
+- Download and install DOSBOX from http://www.dosbox.com/ 
+- Run DOSBOX (eg by clicking the desktop icon)
+- At the Z:\> prompt in the DOS box, type
+    mount c c:\DCDOS
+- To go to the virtual disk C which is now the DCDOS folder- type
+    C:\ 
+- At the C:\> prompt you can type HELP for a list of commands, eg type DIR to see the contents of the \dcprogs folder.
+- Type scan to run scan.exe or the name of any other .exe file in the DCDOS folder. A new window appears in which the program runs. You can make it run whole screen by hitting alt-enter (repeat to exit full screen mode). Remember that DOS file names are restricted to 8 characters + 3 character suffix. You can use only letters and numbers in the file name, no spaces or punctuation.
+- When you leave the program you get back to the C:\> prompt. Type EXIT to end the DOS emulation.
+