Nipa iwulo, pupọ julọ ohun elo ti awọn ologun lo gbọdọ, ni o kere ju, jẹ gaungaun, gbigbe, ati iwuwo fẹẹrẹ. Bi LCDs (Awọn ifihan Crystal Liquid) kere pupọ, fẹẹrẹfẹ, ati agbara diẹ sii ju CRTs (Cathode Ray Tubes), wọn jẹ yiyan adayeba fun ọpọlọpọ awọn ologun…
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