can anyone plz tell me what is debug?

Debug is the process to find out and solve the troubles regarding HW & SW. Legend says the name derives from a real "bug", a butterfly, found in the giant MARK II computer in 1944 that caused a short circuit in the electrical switches stopping the system. Since that day "debug" was the standard name for troubleshooting digital systems. If you refer to the command Debug in DOS\Windows, it is a small utility for the early assembler programmers.

debug.exe /? C:\>debug /? Runs Debug, a program testing and editing tool. DEBUG [[drive:][path]filename [testfile-parameters]] [drive:][path]filename Specifies the file you want to test. testfile-parameters Specifies command-line information required the file you want to test. After Debug starts, type ? to display a list of debugging commands. HELP DEBUG For more information about Debug commands, see the MS-DOS Technical Reference, which comes with the MS-DOS Resource Kit. To order the Resource Kit, use the coupon in the back of your MS-DOS User's Guide. Debug allows binary edit of file or program or binary disk contents. Also allows execution or singlestep of dos programs. Thus one will find thousands of uses for debug referenced all over the internet. Especially used to "Patch" programs. Large sections of old DOS books are devoted to debug. Best

Or in crude words, Debug is to get the bugs (logical errors) out of a program. Derek.W