App Performance Class

The SD Association this week announced the SD Specification 5.1, which will introduce the so-called Application Performance Classes that will specify minimum read and write IOPS performance supported by the upcoming SD cards. The App Performance Classes are designed to help end users to ensure that memory cards they get are capable of providing decent experience when running applications. When Panasonic, SanDisk and Toshiba developed the Secure Digital card standard in the late 1990s, their main goal was to create miniature removable devices to store multimedia files (music, images, short videos, etc.) and even operating systems that would be more versatile than MMC cards and would offer a path for future evolution. Over time, SD cards have increased capacity, improved sequential performance and even gained...