Dot matrix printer

<hardware, printer> A kind of printer with a vertical column of up to 48 small closely packed needles or "pins" each of which can be individually forced forward to press an ink ribbon against the paper.

The print head is repeatedly scanned across the page and different combinations of needles activated at each point.

Dot matrix printers are noisy compared to non-impact printers.

[Other pin arrangements?]

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DOS Protected Mode Interface
DOS requester
dot address
dot file
dot matrix printer
impact printer
non-impact printer
dot notation
dot pitch
dotted quad
double bucky