TSR (Terminate and Stay Resident) :

        Some of these TSRs are useful utilities for MS-DOS on IBM-PC. Some are just for having fun. All these TSRs must be run under MS-DOS Prompt Only.
All the Source Codes are around 1 KB.
 

• cm.exe (6.5 KB) : Changes character colors at every keystroke. Source code.

• fun1.exe (12.5 KB) : Funny DOS Screen,  every character color is changes randomly. Source code.

• make2.exe (10 KB) : Doubles every keystroke with facility to make single. Source Code

• mirror1.exe (9 KB), mirror2.exe (9 KB) :  Makes Horizontal and Vertical mirror Image of MS-DOS Screen.

• time1.exe (6.5 KB): Useful utility for DOS users, which keeps Time on right upper corner. Source Code

Graphics Programs :

Watch out generation of 256 colors in 'C' graphics programmed by YPK.
Also have some time pass graphics programs by me.

• YPK1.exe (8.2 KB) : Program by YPK, which displays a lot of colors. Source Code.

• YPK8.exe (11.5 KB) : Another program by YPK, this displays 256 color palette. Source Code.

• clock.exe (60 KB) : Graphical Analog clock by me done while learning 'C' Graphics, which gets Current time from system and displays in analog format. Source Code.

• mb.exe (58 KB) : Program by me and Prashant done while learning 'C' Graphics and some functions in dos.h. Source Code