Abstract: At present, multimedia is widely used in classroom for teaching , using chalk is not only laborious, but it also produces a lot of chalk dust, polluting the air and adversely affecting the health of the students and teachers, also the use of multimedia helps in better teaching learning process. At present the traditional black board is replaced by smart electric boards produced by companies like Hitachi, Panasonic, which are very costly. This design uses ARM 9 processor for hand-held terminal hardware and Embedded Linux operating system for hand-held terminal software. When teacher writes on a book-size touch screen with an electrical pen, handwriting signal will be transferred to the PC terminal by wireless transmission module. Thus it makes classroom teaching be more efficient.