Muhammed Afsal Villan

software engineering layered model software process models lexical analysis compiler design compiler programming compiler construction compilers bluetooth working bluetooth architecture bluetooth bluetooth devices computer graphics 3d computing 3d graphics fundamentals of computer graphics fourier series digital signal processing electronics barcode scanner working of barcode reader barcode reader types of barcodes barcodes 8255 ic programmable parallel i/o 8255 direct memory access 8257 dma dma controller programmable interval timer ic 8254 timer ic 8253 timer