Talk:IBM Monochrome Display Adapter

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I has a computer like that

[edit] Pin 7 = Video?

What is the meaning of Pin 7 ('video')? I.E. What does this mean electrically? I understand the 'intensity' represents how bright the screen gets per pixel and ground is electrical ground and horizontal sync is used for making sure the pixels displayed line up the right way, but what is the 'meaning' of 'video' electrically?

I think this is the answer you're looking for: The video line carries a digital (on or off) signal indicating if the pixel was on or off. The intensity line made the pixel brighter than normal. There were three levels of pixel brightness - off, on, and on with intensity. The intensity signal just made the pixel brighter - if the video signal did not call for the monitor to paint the pixel on, the intensity signal had no significance.

In electronic parlance the name "video" on a signal line is often used to show that the line is carrying picture information - I've also seen laser printer circuit diagrams with the signal to the laser module named "video". 72.16.169.146 (talk) 19:42, 14 April 2008 (UTC)

[edit] Resolution

MDA is 720 x 350. DevinCook needs to explain his changes. Also, the Executive "screenshot" is cleary not monochrome.

Sorry about that. I thought I was updating the information, but my source was incorrect. I was confusing the original MDA with how the same mode was viewed with subsequent graphics standards. Thanks for fixing my error.--DevinCook 04:11, 19 August 2007 (UTC)

[edit] Fair use rationale for Image:Executive-Suite-DOS-1982.png

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BetacommandBot 03:52, 1 October 2007 (UTC)