Ch Standard Demos
ISO C90 Standard
Wide characters
ISO C99 Standard
C++ features
Complex IEEE floating-point arithmetic
Assumed-shape arrays
Nested functions
Interactive C statement execution
Interactive command shell
Shell Programming
Safe Ch
Ch applets
String Type
Adjustable array bounds
Auto array bound checking
Socket/Winsock
POSIX
Unix utilities for Windows
Windows
GTK+
X/Motif
OpenGL
Toolkits Demos
CGI
ODBC
ChExcel
Ch Professional Demos
Computational array
Plotting
Numerical analysis
C LAPACK functions 
Interactive command shell in Unix

/tmp > pwd
/tmp
/tmp > touch junkfile
/tmp > cp junkfile newfile
/tmp >

Interactive command shell in Windows
C:/temp> pwd
C:/temp
C:/temp> touch junkfile
C:/temp> cp junkfile newfile
C:/temp>