1. Computer Arithmetic Review. Consider the following three CPUs -- Processor Register Size CPU1 7 bits CPU2 8 bits CPU3 9 bits a) What are the biggest and smallest numbers, expressed in decimal notation, that can be represented in the following formats in each processor's registers? i) unsigned binary ii) two's complement binary b) For each processor/representation pair (6 columns in all): which will overflow when asked to process these numbers? Draw a table to show your results. i) -256 ii) 512 iii) -512 iv) 128 v) -128 vi) -64 vii) 256