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2. Boot disk - Wikipedia

   en.wikipedia.org/wiki/Boot_disk

   This program may itself be a small program designed to load a larger and more capable program, i.e., the full operating system. To enable booting without the requirement either for a mass storage device or to write to the boot medium, it is usual for the boot program to use some system RAM as a RAM disk for temporary file storage.

3. Old World ROM - Wikipedia

   en.wikipedia.org/wiki/Old_World_ROM

   Toolbox then checks for a disk in the floppy drive, and scans all SCSI buses for a disk with a valid System Folder, giving preference to whatever disk is set as the startup disk in the parameter RAM. If a bootable disk is found, the Happy Mac logo is displayed, and control is handed over to the Mac OS.

4. Macintosh startup - Wikipedia

   en.wikipedia.org/wiki/Macintosh_startup

   A Happy Mac is the normal bootup (startup) icon of an Apple Macintosh computer running older versions of the Mac operating system. It was designed by Susan Kare in the 1980s, drawing inspiration from the design of the Compact Macintosh series and from the Batman character Two-Face . [ 10 ]

5. Target Disk Mode - Wikipedia

   en.wikipedia.org/wiki/Target_Disk_Mode

   Target Disk Mode (sometimes referred to as TDM or Target Mode) is a boot mode unique to Macintosh computers. When a Mac that supports Target Disk Mode [1] is started with the 'T' key held down, its operating system does not boot. Instead, the Mac's firmware enables its drives to behave as a SCSI, FireWire, Thunderbolt, or USB-C external mass ...

6. Power-on self-test - Wikipedia

   en.wikipedia.org/wiki/Power-on_self-test

   With boot times more of a concern now than in the 1980s, the 30- to 60-second memory test adds undesirable delay for a benefit of confidence that is not perceived to be worth that cost by most users. Most clone PC BIOSes allowed the user to skip the POST RAM check by pressing a key, and more modern machines often performed no RAM test at all ...

7. System partition and boot partition - Wikipedia

   en.wikipedia.org/wiki/System_partition_and_boot...

   The system partition and the boot partition (also known as the system volume and the boot volume) are computing terms for disk partitions of a hard disk drive or solid-state drive that must exist and be properly configured for a computer to operate. There are two different definitions for these terms: the common definition and the Microsoft ...

8. Booting - Wikipedia

   en.wikipedia.org/wiki/Booting

   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 ...

9. Macintosh Toolbox - Wikipedia

   en.wikipedia.org/wiki/Macintosh_Toolbox

   Although the "Classic Mac OS" boot process is convoluted and largely undocumented, it is not more limited than an IBM PC compatible BIOS. Like a PC's master boot record, a ROM-based Mac reads and executes code from the first blocks ("boot blocks") of the disk partition selected as the boot device. The boot blocks then verify that a suitable ...