HELP mE PLZ Gabby needs to perform regular computer maintenance. What should she do? Check all that apply.

Remove unwanted files.
Reboot the computer.
Back up her data.
Scan for viruses.
Delete the browsing history.

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)