How do you ask the user to continue if there’s a sentinel value? Example the user must enter yes yEs or YES to continue

Design a pos circuit that displays the letters a through j on a seven-segment indicator. the circuit has four inputs w, x, y, and z which represent the last 4 bits of the uppercase ascii code for the letter to be displayed. thus, if wxyz = 0001 then "a" will be displayed. (any answer with 22 or fewer gates and inverters, not counting any for the inputs, is acceptable)

All of the following are characteristics that must be contained in any knowledge representation scheme except

In which job role will you be creating e-papers, newsletters and preiodicals