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Advanced Format is a generic term pertaining to any disk sector format used to store data on magnetic disks in hard disk drives (HDDs) that exceeds 512 to 528 bytes per sector,〔 such as the 4096-byte (4 KiB) sectors of the first-generation Advanced Format hard disk drives. Larger sectors use the storage surface area more efficiently for large files but less efficiently for smaller files, and enable the integration of stronger error correction algorithms to maintain data integrity at higher storage densities. Advanced Format is also considered a milestone technology in the history of HDD storage, where data has been generally processed in 512-byte segments since at least the introduction of consumer-grade HDDs in the early 1980s, and in similar or smaller chunks in the professional field since the HDD's invention in 1956. == History == The need for long data sectors was first identified in 1998 when a technical paper issued by the ''National Storage Industry Consortium'' (NSIC) called attention to the conflict between continuing increases in data storage densities, known as areal density, and the traditional 512-byte-per-sector format used in hard disk drives.〔(【引用サイトリンク】 The Advent of Advanced Format )〕 Without revolutionary breakthroughs in magnetic recording system technologies, areal densities, and with them the storage capacities, hard disk drives were projected to stagnate. The storage industry trade organization, ''International Disk Drive Equipment and Materials Association'' ((IDEMA )), responded by organizing the IDEMA ''Long Data Sector Committee'' in 2000, where IDEMA and leading hardware and software suppliers collaborated on the definition and development of standards governing long data sectors, including methods by which compatibility with legacy computing components would be supported.〔 In August 2005, Seagate shipped test drives with 1K physical sectors to industry partners for testing.〔(【引用サイトリンク】 title=Transition to Advanced Format 4K Sector Hard Drives )〕 In 2010, industry standards for the first official generation of long data sectors using a configuration of 4096 bytes per sector, or 4K, were completed. All hard drive manufacturers have committed to shipping new hard drive platforms for desktop and notebook products with the Advanced Format sector formatting by January 2011.〔 Advanced Format was coined to cover what was expected to become several generations of long-data-sector technologies, and its logo was created to distinguish long-data-sector–based hard disk drives from those using legacy 512-, 520- or 528-byte sectors. 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「Advanced Format」の詳細全文を読む スポンサード リンク
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