The IBM 5151 is a 12" transistor–transistor logic (TTL) monochrome monitor, shipped with the original IBM Personal Computer for use with the IBM Monochrome Display Adapter.[1][2][3][4][5] A few other cards were designed to work with it, such as the Hercules Graphics Card.
The monitor has an 11.5-inch wide CRT (measured diagonally) with 90 degree deflection, etched to reduce glare, with a resolution of 350 horizontal lines and a 50 Hz refresh rate.[3][4][6] It uses TTL digital inputs through a 9-pin D-shell connector, being able to display at least three brightness levels, according to the different pin 6 and 7 signals.[7] It is also plugged into the female AC port on the IBM PC power supply, and thus did not have a power switch of its own.
The IBM 5151 uses the P39 phosphor type, producing a bright green monochrome image intended for displaying high-resolution text.[8][6] This phosphor has high persistence, which decreases display flicker but causes smearing when the image changes.[9][10]
Specifications
edit| Type | Digital, TTL[8] |
|---|---|
| Resolution | 720 x 350 |
| Size | 11 in × 15 in × 14 in (280 mm × 380 mm × 360 mm) (H×W×D)[8] |
| Weight | 12.5 lbs[8] |
| Heat output | 95.2 W[8] |
| H-freq | 18.432 kHz[8] |
| V-freq | 50 Hz[8] |
References
edit- ^ "The IBM XT LIVES!!". Forbes.com. Archived from the original on 2001-07-12. Retrieved 2008-11-16.
- ^ "IBM 5151-02 computer monitor, 1983 | Science Museum Group Collection". collection.sciencemuseumgroup.org.uk. Retrieved 2022-11-17.
- ^ a b Farquhar, Dave (2021-08-31). "First generation IBM PC monitors". The Silicon Underground. Retrieved 2022-11-17.
- ^ a b "IBM 5151 Personal Computer Display - Peripheral - Computing History". www.computinghistory.org.uk. Retrieved 2022-11-17.
- ^ IBM 5151 Personal Computer monitor. 1981.
- ^ a b Personal Computer Hardware Reference Library - IBM Monochrome Display (5151) (PDF). IBM.
- ^ "minuszerodegrees.net". www.minuszerodegrees.net. Retrieved 2022-11-17.
- ^ a b c d e f g IBM Monochrome Display user manual
- ^ Bottles full of nothing, by Steve Gibson, InfoWorld, 11 Jun 1984
- ^ By (2022-01-03). "Matrix Digital Rain On The IBM PC With A High Persistence Monitor". Hackaday. Retrieved 2022-11-17.
External links
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