Where the Leader dots are used in typewriting ?

Which carriage is suitable for fullscap paper can be inserted lengthwise ?

The process of taking out more than one copy with help of Carbon paper.

The hastily hand-written rough scripts: 

A box formed by the intersection of a row and column in a worksheet or a table, in which you enter information. 

The small renderings of each page in your document, displayed in a separate pane.