1. An ultrasound system comprising: front-end means for converting ultrasound backscatter signals to digital data values; means for converting said digital data values to lines of digital data values; plural processing modules for converting said lines of digital data values into video displayable data each processing module operational to process said lines of digital data values in accord with a specific function of a series of required functions to enable creation of displayable data; a shared memory for storing processed results of each of said plural processing modules; means for coupling said shared memory and said plural processing modules and for enabling data transfers therebetween; and control means for enabling each respective one of said plural processing modules to access processed results from said shared memory, on a line by line basis, stored therein by a processing module whose function precedes a function to be performed by said each respective one of said plural processing modules, and to operate upon said processed results and store resulting processed data in said shared memory on a line by line basis.