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Apple Partition Map (APM) is a partition scheme used to define the low-level organization of data on disks formatted for use with 68k and PowerPC Macintosh computers. It was introduced with the Macintosh II. The Apple Partition Map maps out all space used (including the map) and unused (free space) on disk, unlike the minimal x86 master boot record that only accounts for used non-map partitions. This means that every block on the disk (with the exception of the first block, Block 0) belongs to a partition.

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  • Apple Partition Map (de)
  • Apple Partition Map (en)
  • Apple Partition Map (it)
  • 애플 파티션 맵 (ko)
  • Apple Partition Map (zh)
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  • 애플 파티션 맵(Apple Partition Map, APM)은 및 파워PC 매킨토시 컴퓨터에 사용할 목적으로 포맷된 디스크 상의 저급 데이터 조직을 정의하기 위해 사용되는 파티션 스킴이다. 매킨토시 II에 도입되었다. 일부 는 ISO 9660 프라이머리 볼륨 서술자와 애플 파티션 맵을 모두 포함하고 있으므로 애플 시스템을 포함하여 디스크가 각기 다른 종류의 컴퓨터에서 동작할 수 있게 한다. (ko)
  • Apple Partition Map簡稱APM是一種定義低階磁碟格式上的資料的架構，用於Motorola 68000/PowerPC Macintosh電腦。APM在Macintosh II被引入。使用APM磁碟架構的硬碟，會被切分成邏輯區塊，每個邏輯區塊有512bytes。區塊中的第一塊，包含蘋果特有的資料結構(Driver Descriptor Map)，讓Macintosh Toolbox ROM在電腦讀入MFS或者是HFS之前先讀入更新檔進行更新。因為APM要允許32位元值的邏輯區塊，因此APM硬碟格式過去大小限制在2TiB。 APM所有的空間都有對應到磁碟中，包含map與未使用的空間。(MBR只有對應有使用的空間。)這意味著磁碟中所有的邏輯區塊都有所屬的分區。 有些複合型磁碟同時使用 ISO 9660 primary volume descriptor與APM兩種磁碟架構，能夠讓磁碟在不同作業系統的電腦底下運作。 Apple於Intel Mac中，使用GPT代替APM。 (zh)
  • Apple Partition Map (APM) is a partition scheme used to define the low-level organization of data on disks formatted for use with 68k and PowerPC Macintosh computers. It was introduced with the Macintosh II. The Apple Partition Map maps out all space used (including the map) and unused (free space) on disk, unlike the minimal x86 master boot record that only accounts for used non-map partitions. This means that every block on the disk (with the exception of the first block, Block 0) belongs to a partition. (en)
  • Die Apple Partition Map, kurz APM, bezeichnet eine Partitionstabelle für m68k- und PowerPC-basierte Computer des US-amerikanischen Unternehmens Apple. Sie wurde mit dem Macintosh II 1987 eingeführt und 2006 mit dem Übergang zur Intel-Architektur durch die GUID Partition Table (GPT) ersetzt. Als eine Besonderheit der Apple-Partitionstabelle gilt, dass sie sich selbst ebenfalls als Partition definiert, ebenso wie freier Speicher auf dem Speichermedium als spezielle Partition definiert ist. Damit ist mit der Ausnahme des Block 0 jeder logische Block auf dem Medium einer Partition zugehörig. (de)
  • Apple Partition Map o APM è uno schema di partizionamento usato per definire l'organizzazione di basso livello dei dati su disco rigido formattato per l'uso con computer Macintosh. I dischi Apple sono divisi in blocchi da 512 byte. Il primo blocco (blocco 0) contiene informazioni riservate al driver. La mappa delle partizioni inizia effettivamente al blocco 1. La peculiarità di APM consiste nel definire sé stessa come una delle partizioni presenti su disco. Ciò significa che ogni blocco del disco (con l'eccezione del blocco 0) appartiene a una partizione. (it)
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