Task 1. Arithmetics a. Convert the number (A)10=123,45 to the binary system using the product-quotient or differential method. Provide 4 digits in the fraction part. Estimate the representation error. (A)2=? b. Convert (A)2 obtained above to the quaternary system by bit grouping. (A),=? c. Convert (A), obtained above back to the decimal system. (A)1=? d. For A = 5 and B = 7 provide the representation of A, -A, B and B in sign- 13 magnitude, diminished radix complement and radix complement notations. (A)SM=?, (-A)SM=?, (-A)PRC=?, (-A)RC=? and similarly for B. e. For the numbers A and B given above, calculate Z=A+(-B) in the DRC notation. 16