IBM 5151 Personal Computer Display

The IBM 5151 Personal Computer Display is a monochrome CRT display originally sold with the IBM 5150 Personal Computer. In order to reduce eye fatigue the 5151 used a long-persistence phospor; this reduced perceived flicker. As it was intended for business users, the Monochrome Display Adapter (MDA) it was paired with did not support graphics modes.

The 5151 is unusual in that it does not have an internal horizontal oscillator. The horizontal sync input signal goes straight to the horizontal driver stage - this means that driving it with an incorrect horizontal refresh signal can cause the monitor to be physically damaged (usually by burning out the flyback transformer).

Date : Unknown

Manufacturer : IBM

This exhibit has a reference ID of CH39463. Please quote this reference ID in any communication with the Centre for Computing History.

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