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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク POST card ： ウィキペディア英語版 POST card In computing, a POST card is a plug-in interface card that displays progress and error codes generated during power-on self-test (POST) of a computer. It is used to troubleshoot computers that do not start up. ==Working principle== At a minimum, if the CPU, BIOS, and the I/O interface upon which the POST card relies are all working, a POST card can be used to monitor the system's Power-On Self Test (POST), or to diagnose problems with it. The system sends two-hexadecimal-digit codes to a specified I/O port (usually 80 hex) during startup, some indicating a stage in the startup procedure, others identifying errors. The description for each code must be looked up in a table for the particular BIOS. For example, for the 1984 IBM PC/AT code 1D is issued when about to ''Determine Memory Size Above 1024K'', and code 2D in the event of ''8042 Keyboard Controller Failure, 105 System Error''. If startup does not complete successfully, either an error code, or the code of the last operation, is available. POST cards provide information even when a standard display is not available, either because connecting a monitor is impractical, or because the failure occurs before the video subsystem is operational. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「POST card」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.