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The Developer Transition Kit is the name of two prototype Mac computers made available to software developers by Apple Inc. The first Developer Transition Kit was made available in 2005 prior to the Mac transition to Intel processors to aid in the Mac's transition from PowerPC to an Intel-based x86-64 architecture .
The Macintosh startup chime is played on power-up, before booting into an operating system. The sound indicates that diagnostic tests were run immediately at startup and have found no hardware or fundamental software problems. [9] The specific sound differs depending on the ROM, which greatly varies depending on Macintosh model.
Mac OS X Leopard added the ability to create, resize, and delete disk partitions without erasing them, a feature known as live partitioning. In OS X El Capitan , Disk Utility has a different user interface and lost the abilities to repair permissions due to obsolescence , [ 6 ] create and manage disks formatted as RAID , burn discs, and multi ...
In Mac OS 9 and early versions of Mac OS X, Software Update was a standalone tool. The program was part of the CoreServices in OS X. It could automatically inform users of new updates (with new features and bug and security fixes) to the operating system, applications, device drivers , and firmware .
MacBook Air (Mid 2013 or later) MacBook Pro (Late 2013 or later) Mac Mini (Late 2014 or later) Mac Pro (Late 2013 or later) Developer Transition Kit (only up to Big Sur 11.3 beta 2 [12]) By using patch tools, macOS Big Sur can be installed on earlier computers that are officially unsupported, such as the 2012 iMac and the 2012 MacBook Pro. [13]
A package manager or package-management system is a collection of software tools that automates the process of installing, upgrading, configuring, and removing computer programs for a computer in a consistent manner. [1] A package manager deals with packages, distributions of software and data in archive files.
macOS Monterey is the final version of macOS that supports the 2015–2017 MacBook Air, Retina MacBook Pro, 2014 Mac Mini, 2015 iMac and cylindrical Mac Pro, as its successor, macOS Ventura, drops support for those models. It is the last version of macOS that can run on Macs with 4GB of RAM.
This limited the usefulness of the Processor Upgrade Card, as internal ethernet, Apple IIe compatibility, video cards and other LC PDS expansion options must be removed. The Macintosh Processor Upgrade Card can bring a 68k Mac, that can normally only go up to Mac OS 8.1, to be upgraded to Mac OS 8.6 or newer as long as the card is always in use.