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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.
Power supply may be bad Long continuous beep tone Memory failure Steady, long beeps Power supply bad No beep Power supply bad, system not plugged in, or power not turned on No beep If everything seems to be functioning correctly there may be a problem with the 'beeper' itself. The system will normally beep one short beep. One long, two short beeps
Startup Disk – Holding the Option Key at boot time activates a boot manager built into the firmware, where the user may choose from which drive/partition to boot the computer from, including Mac OS and Mac OS X partitions or drives on PowerPC-based Macs, and Mac OS X and Microsoft Windows partitions or drives on Intel-based Macs (running Mac ...
The M1 13-inch MacBook Pro was released alongside an updated MacBook Air and Mac Mini as the first generation of Macs with Apple's new line of custom ARM-based Apple silicon processors. [114] This MacBook Pro model retains the same form factor/design and added support for Wi-Fi 6, USB4, and 6K output to run the Pro Display XDR. [115]
When debugging a concurrent and distributed system of systems, a bootloop (also written boot loop or boot-loop) is a diagnostic condition of an erroneous state that occurs on computing devices; when those devices repeatedly fail to complete the booting process and restart before a boot sequence is finished, a restart might prevent a user from ...
The MacBook Pro line launched in 2006 as an Intel-based replacement for the PowerBook line. The first MacBook Pro used an aluminum chassis similar to the PowerBook G4, but replaced the PowerPC G4 chips with Intel Core processors, added a webcam, and introduced the MagSafe power connector. The unibody model debuted in October 2008, so-called ...
The MacBook is thinner than its predecessor, the iBook G4, but it is wider than the 12-inch model, and has a widescreen display. The MacBook was one of Apple's first laptops to adopt the MagSafe power connector (the first being the MacBook Pro), and it replaced the iBook's mini-VGA display port with a mini-DVI display port.
Activity Monitor; AirPort Utility; Archive Utility; Audio MIDI Setup; Bluetooth File Exchange; ColorSync; Console; Crash Reporter; DigitalColor Meter; Directory Utility