(computing) Someone who works (or worked) for a dotcom company.

Any of a number of uniform round dots, repeated to make a regular geometric pattern on a fabric

To cover as with polka dots.

Alternative spelling of polka dot

Alternative spelling of polka dot

(computing, also attributively) A two-dimensional array or pattern of dots used (for example, by a display device or a printer) to represent alphanumeric characters and pictures.

(idiomatic, Britain, Ireland) A very long time ago, from the beginning or as far back as one can remember.

Alternative spelling of dotcom

Alternative spelling of dotcom

That functions by use of a dot matrix