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<< 速いのがそんなに大事・・・? | main | 雷サージからLANポートを守る >>
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一定期間更新がないため広告を表示しています

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ここまでいらない・・・?
 前回、パソコンの速度が使い方によっては無意味になって来ているという話をしましたが、HDDの容量の増加もまた、そのような傾向があります。
 今、1GBあたりの価格が一番安いのは2TB(2000GB)ですが、それを聞いても「そこまでいらないなあ」という人が増えました。今はむしろプラッタ枚数やキャッシュ を気にする人が多くなりました。
プラッタ枚数は少ない枚数に大容量のもの程、データが狭い範囲に詰め込まれる為、読み込みに必要な時間も短くなります。
 キャッシュはHDD に内蔵されている一時的にデータを保持する場所です。HDDはCPUより速度が遅いので、HDDが読み書きを終えていないデータはキャッシュに保存され、CPUからの要求が無いときに読み書きの処理を行うようにするものです。当然、容量が大きい方が処理は高速になります。
   SSDにしてしまえば速いのは間違いないのですが、まだまだ価格が高いので、少しでも高速なものにしているのでしょうか?


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
| HDD | 01:36 | comments(0) | trackbacks(0) | このページのトップへ
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