Using Logisim program Design a Computer Unit modules, that ahow the following:

A complete $7$ bit input component with $7$ bit each MUX with DEMUX and displays the output.

A RAM with a keyboard $7$ bit data entry unit to store any $7$ bit data to be displayed in TTY$.$

$3-8$ bit decoder to address $8$ bit ROM and display output.

$4-$A bus Control unit that carries $8$ data collected from an input unis to display each bis in a separate display bus line.