| A | B |
| page down | moves the cursor down to the bottom of the page, one page at a time |
| delete key | used to remove text at the cursor and to the right |
| tab key | used to move the cursor to the right--default setting is 1/2 inch |
| insert key | used to add characters, spaces, or numbers into existing text |
| hard drive | the permanent, predetermined drive located in the CPU casing |
| backspace key | used to remove text to the left of the cursor |
| hardware | the mechanical, magnetic, electronic, and electrical devices comprising a computer system, as the CPU, disk drives, keyboard, or screen |
| double spacing | to use line spacing which leaves one blank line between lines of text |
| single spacing | to use line spacing which leaves no blank line between lines of text |
| triple spacing | to use line spacing which leaves two blank lines between lines of text |
| quadruple spacing | to use line spacing which leaves three blank lines between lines of text |