The two crossword solutions for the term 'Items on a List' are DOS and TODOS. DOS stands for Disk Operating System, which is an operating system developed by Microsoft in 1981. It was the first operating system to be widely used on personal computers. TODOS stands for Task Oriented Data Operating System, which is a type of operating system designed to manage tasks and data. It was developed in the late 1970s and is still used today. Both DOS and TODOS are used to store and organize items on a list.