Dos prompt

[Justin Bieber]

c:<enter>
Early computer users typed c, the colon<:>, then pressed <enter> to get back to the main [disk drive] in [DOS]. It was also an [inside joke].

[Little_Girl]

c:less thanentergreater than
Early computer users typed c, the colonless than:greater than, then pressed less thanentergreater than to get back to the main [disk drive] in [DOS]. It was also an [inside joke].