Digital system design (vhdl, verilog) ebook free download pdf
Digital Signals are easy to store and easy tomanipulate without error. Accuracy increases by increasing number of levels. Here cost of thehardware is prop analog, signal values are stored in capacitors it is not constant for long time it may increase or decrease because of noise. Accuracy increases by increasing more sensible coils. Here the cost of the require hardware is much more to accuracy.