The term 'COMPUTER KEYS: ABBR.' can be solved by the two crossword solutions ALTS and ESCS. ALTS stands for 'ALTERNATE' and ESCS stands for 'ESCAPE'. These are two of the most common keys found on a computer keyboard. The ALTERNATE key is usually located to the right of the spacebar and is used to access ALTERNATE functions of other keys. The ESCAPE key is usually located in the top left corner of the keyboard and is used to exit out of a program or cancel an action.