average access time

average access time
= AAT
среднее время доступа
для дискового накопителя - среднее время, за которое головка перемещается к заданной дорожке диска, устанавливается (позиционируется) на неё и начинает считывать или записывать данные, т. е. это среднее время до начала чтения данных, размещённых где-либо на диске; складывается из среднего времени позиционирования головок чтения/записи (average seek time) и средней задержки (average rotation latency), связанной с ожиданием прохождения сектора с данными под головками чтения/записи. Измеряется в миллисекундах
см. тж. access time

Англо-русский толковый словарь терминов и сокращений по ВТ, Интернету и программированию. . 1998-2007.

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