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macOS supports listing, [18] getting, [19] setting, [20] and removing [21] extended attributes from files or directories using a Linux-like API. From the command line, these abilities are exposed through the xattr utility. [22] Since macOS 10.5, files originating from the web are marked with com.apple.quarantine via extended file attributes. [23]
MRJ v2.2.5 was compatible with Sun's Java Development Kit version 1.1.8. [1] Since the transition to Mac OS X, Apple has discontinued MRJ and instead maintains and distributes a port of Oracle's HotSpot Java virtual machine. [2] As of Java 7, Apple has discontinued its own JRE, and Java support on OS X/macOS now comes directly from Oracle.
Starting with Mac OS X Tiger, AppleDouble was used to store resource forks on file systems such as Windows SMB shares and FAT32 (File Allocation Table) volumes. In the HFS Plus file system, settings can be made to allow other forks in addition to the data and resource forks, to create a "multi-fork" application. [2]
System Settings (known as System Preferences prior to macOS Ventura) is an application included with macOS. It allows users to modify various system settings, which are divided into separate Preference Panes .
The Catalog File, which stores all the file and directory records in a single data structure, results in performance problems when the system allows multitasking, as only one program can write to this structure at a time, meaning that many programs may be waiting in queue due to one program "hogging" the system. [6]
Filesystems making use of a BIOS parameter block include FAT12 (except for in DOS 1.x), FAT16, FAT32, HPFS, and NTFS. Due to different types of fields and the amount of data they contain, the length of the BPB is different for FAT16, FAT32, and NTFS boot sectors. [ 1 ] (
For that purpose, a removable device is formatted with a FAT12, FAT16 or FAT32 file system, while a boot loader needs to be stored according to the standard ESP file hierarchy, or by providing a complete path of a boot loader to the system's boot manager. On the other hand, FAT32 is always expected on fixed drives. [1]
The Transaction-Safe FAT File System (TFAT) of the TFAT12, TFAT16 and TFAT32 file systems is a driver layer modification to the original FAT file systems FAT12, FAT16 and FAT32 maintaining two copies (FAT 0 and FAT 1) of the file allocation table instead of two identical ones. While performing a drive operation, changes would be made to FAT 1.