A pin is an image or video that a user "pins" to his or her virtual pinboard on the Pinterest site

In the ____________ numbering system, all numeric values are written as sequences of the digits 0 and 1.

a. hexadecimal b. decimal c. octal d. binary

A(n) ____________________ is the general category of input device that allows you to manipulate an on-screen pointer and other screen-based graphical controls.

Fill in the blank(s) with the appropriate word(s).