12:50 Jul 18, 2005 |
English language (monolingual) [PRO] Tech/Engineering - Computers: Hardware / Computer trouble shooting | ||||
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| Selected response from: Tony M France Local time: 22:15 | |||
Grading comment
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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5 +11 | one whole line (on screen, or whatever...) never lights up |
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one whole line (on screen, or whatever...) never lights up Explanation: We really need more context to be exactly sure, but basically, a 'line of pixels' will represent a line on the screen (usually horizontal, because of the way pixels work, but if the term is being used imprecisely, it might alternatively mean a vertical line = column, since that too is feasible in a context of x,y matrixed row/column addressing) Whether this is a computer problem (i.e. the memory or graphics chips, etc. are failing to output certain bits, leading to certain whole lines being missing), or a display problem (LCD and plasma displays are particularly prone to 'losing' one whole line or a column, because of the matrixed way they are addressed; traditional CRT-based screens do not suffer from the same problem). An analogous problem can arise with, e.g., CCD image sensor arrays I hope this helps, but please ask if you need any more explanation. -------------------------------------------------- Note added at 6 hrs 29 mins (2005-07-18 19:19:47 GMT) -------------------------------------------------- As Rita says, this is more often a display problem than a problem with the actual computer itself, though that too is possible (though rarer). |
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