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This is a list of all major types of Mac computers produced by Apple Inc. in order of introduction date. Macintosh Performa models were often physically identical to other models, in which case they are omitted in favor of the identical twin.
A record in the HFS Catalog File is 512 bytes in size; a record in the HFS Plus Catalog File is 4 KB in the classic Mac OS and 8 KB in macOS. Fields in HFS are of fixed size, while in HFS Plus the size can vary depending on the actual size of the data they store.
Under MFS all of the file and directory listing information was stored in a single file, which the system had to search to build a list of the files stored in a particular folder. This worked well with a system with a few hundred kilobytes of storage and perhaps a hundred files, but as the systems grew into megabytes and thousands of files, the ...
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Apple [1] Disk Image is a disk image format commonly used by the macOS operating system. When opened, an Apple Disk Image is mounted as a volume within the Finder.. An Apple Disk Image can be structured according to one of several proprietary disk image formats, including the Universal Disk Image Format (UDIF) from Mac OS X and the New Disk Image Format (NDIF) from Mac OS 9.
Vital Product Data (VPD) is a collection of configuration and informational data associated with a particular set of hardware or software. [1] VPD stores information such as part numbers, serial numbers, and engineering change levels. Not all devices attached to a system will provide VPD, but it is often available from PCI and SCSI devices.
A product record (or product data record) is the data associated with the entire lifecycle of a product from its conception, through design and manufacture, to service and disposal. It includes all the information used to develop, describe, manage and communicate information about products and critical linkage between relevant data elements.
Serial numbers are often used in network protocols. However, most sequence numbers in computer protocols are limited to a fixed number of bits, and will wrap around after sufficiently many numbers have been allocated. Thus, recently allocated serial numbers may duplicate very old serial numbers, but not other recently allocated serial numbers.