Engineering:IBM 5151
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 does 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
| 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(5.44311 kg )[8] |
| Heat output | 95.2 W[8] |
| H-freq | 18.432 kHz[8] |
| V-freq | 50 Hz[8] |
References
- ↑ "The IBM XT LIVES!!". Forbes.com. Archived from the original on 2001-07-12. https://web.archive.org/web/20010712134114/http://biz.yahoo.com/fo/001026/qa_ibmxt.html. Retrieved 2008-11-16.
- ↑ "IBM 5151-02 computer monitor, 1983 | Science Museum Group Collection" (in en). https://collection.sciencemuseumgroup.org.uk/objects/co63964/ibm-5151-02-computer-monitor-1983-monitor.
- ↑ 3.0 3.1 Farquhar, Dave (2021-08-31). "First generation IBM PC monitors" (in en-US). https://dfarq.homeip.net/first-generation-ibm-pc-monitors/.
- ↑ 4.0 4.1 "IBM 5151 Personal Computer Display - Peripheral - Computing History". http://www.computinghistory.org.uk/det/39463/IBM-5151-Personal-Computer-Display/.
- ↑ IBM 5151 Personal Computer monitor. 1981. https://www.computerhistory.org/collections/catalog/102716230.
- ↑ 6.0 6.1 Personal Computer Hardware Reference Library - IBM Monochrome Display (5151). IBM. https://www.minuszerodegrees.net/oa/OA%20-%20IBM%20Monochrome%20Display%20(5151).pdf.
- ↑ "minuszerodegrees.net". https://www.minuszerodegrees.net/mda_cga_ega/mda_cga_ega.htm.
- ↑ 8.0 8.1 8.2 8.3 8.4 8.5 8.6 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" (in en-US). https://hackaday.com/2022/01/03/matrix-digital-rain-on-the-ibm-pc-with-a-high-persistence-monitor/.
External links
Template:IBM personal computers
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