Talk:IBM 8514

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Tseng ET4000 as 8514/A compatible card[edit]

The article contains the statement that the ET4000 is "refrenced to be 8514 compatible". This is not true on a hardware level. The ET4000 chip is no 2D accellerator, it's a simple framebuffer chip. But it is true that some ET4000 graphics cards came bundled with a software implementation of the Adapter Interface specification. This enabled 8514/A-compatible software that purely relied on the Adapter Interface to work with ET4000 cards, albeit at lower performance because all drawing operations had to be performed by the host processor. — Preceding unsigned comment added by MichaelKarcher (talk • contribs) 13:38, 11 September 2020 (UTC)[reply]

External links modified[edit]

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External links modified[edit]

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Title...?[edit]

Seeing as this article talks pretty much exclusively about the display adapter board, i.e. the 8514/A, and to a lesser extent its characteristic resolution/refresh/colour modes (which I have never seen described independently as anything other than "8514/A" or "XGA"), but barely even bothers with a side note about the 8514 monitor (which was entirely optional from day one, as that was just the default and IBM offered several alternatives e.g. the larger, monochrome, long-persistence - and so arguably more suitable for interlace mode - 8507)... shouldn't the article title be "IBM 8514/A"?

I mean, I don't know how to change it or how easy that would be, or whether the slash would create difficulties for the wiki software and address generation, but at the moment it seems incorrect.

Also, fwiw, "XGA" currently redirects to (the top of!) a huge, general list of display resolutions, which has technical information about the hardware itself shoehorned in, which seems out of place. Shouldn't that term redirect here in the first case (with maybe a link back to the list), or at least to a disambiguation page that offers the choice of both? And the information on the general resolution list be moved (or at least copied) onto this one, if it's found to contain any material not already duplicated here? 146.199.0.169 (talk) 12:22, 18 May 2019 (UTC)[reply]

1024×768 text mode with 85×38 characters?[edit]

1. That would be a character cell with 12x20 pixels. I did not found any information about this unusual char cell size, e.g. whether it really existed, whether "soft fonts" (in which format?) are supported etc.

2. But there are ("VESA") text modes with 132 character columns, so 1056 pixels with 8 pixels per char. Are they supported on 8514, too? --RokerHRO (talk) 08:40, 17 October 2020 (UTC)[reply]

Conversion of field rate to frame rate is wrong and uncited.[edit]

The second sentence "It supports a display resolution of 1024 × 768 pixels with 256 colors at 43.5 Hz (interlaced; 87 fields per second)" seems wrong.

When a refresh rate is listed, it lists the number of frames a second for progressive, and fields per second for interlaced. 43.5 Hz interlaced would be 43.5 fields a second, not 87, rendering 21.75 effective full frames a second. The citation listed for that sentence doesn't touch on the difference between fields and frames at all, so it seems someone has either extrapolated this incorrectly, or IBM mislabeled what they were doing if the information is indeed correct.

Either way, this needs clarification.

Nabeel_co (talk) 01:14, 28 January 2022 (UTC)[reply]

I read through the citation and read the edit history. Someone was trying to make the refresh rate sound not as "bad" and seems to have put in incorrect information as a result. I'll be correcting this issue shortly. Nabeel_co (talk) 01:21, 28 January 2022 (UTC)[reply]