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Apple–Intel architecture

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cannot be used on Intel Macs; the EFI firmware can recognize and boot from USB drives, but it can only do this in EFI mode–when the firmware switches to BIOS mode, it no longer recognizes USB drives, due to lack of a BIOS-mode USB driver. Many operating systems, such as earlier versions of Windows
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GUID Partition Table (GPT) is a standard for the layout of the partition table on a physical hard disk. It is a part of the Extensible Firmware Interface (EFI) standard proposed by Intel as a substitute for the earlier PC BIOS. The GPT replaces the Master Boot Record (MBR) used with BIOS.
1034:. Its presence enforces a form of digital rights management, preventing Mac OS X being installed on stock PCs. The name of the kext is a reference to the Mac OS X license conditions, which allow installation on Apple hardware only. According to Apple, anything else is 1097:, a component exclusive to Apple computers, and can be easily retrieved from it. These two 32-byte keys form a human-readable ASCII string copyrighted by Apple, establishing another possible line of legal defence against prospective clone makers. 1128:), which had a first public beta release for Mac OS X in April 2007. It supports VT-x and can run multiple other guest operating systems, including Windows XP and later. It is available free of charge under either a proprietary license or the 949:
partners to use UEFI boot process on PCs, which made the differences smaller. However, Apple's version of EFI also includes some custom extensions that are utilized during regular macOS boot process, which include the following:
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used on PowerPC-based Macs to the Intel-designed Extensible Firmware Interface (EFI). With the change in processor architecture to x86, Macs gained the ability to boot into x86-native operating systems (such as
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Regardless of the product used, there are inherent limitations and performance penalties in using a virtualized guest OS versus the native macOS or booting an alternative OS solution offered via Boot Camp.
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and Linux, could only be booted in BIOS mode, or were more easily booted or perform better when booted in BIOS mode, and thus USB booting on Intel-based Macs was for a time largely limited to
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among system components, it was believed that the TPM is responsible for handling the DRM protection. It was later proven to not be the case. The keys are actually contained within the
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that gives the user the ability to run and switch between two or more operating systems simultaneously, rather than having to dual-boot and run only one operating system at a time.
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introduction (lead) presents unsourced information, potentially resolvable by adding citations to main body. Furthermore, the article scope is not yet fully reflected in the lead.
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in the Apple–Intel architecture is accomplished via the "Dont Steal Mac OS X.kext," sometimes referred to as DSMOS or DSMOSX, a file present in Intel-capable versions of the
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Booting to non-Mac operating systems is possible by holding the option key while booting to select an operating system other than macOS to which the user would like to boot.
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architectures. Since many operating systems, such as Windows XP and many versions of Windows Vista, are incompatible with EFI, Apple released a firmware upgrade with a
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Mac OS X. The kext is located at /System/Library/Extensions on the volume containing the operating system. The extension contains a kernel function called
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keyboard interconnect. PS/2 also used to be the standard for PC laptop pointing devices, although a variety of other interfaces, including USB,
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decryption of "apple-protected" programs. A system lacking a proper key will not be able to run the Apple-restricted binaries, which include
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as the boot firmware. At the time the platform debuted in 2006, it was in a stark contrast to PCs, which almost universally employed legacy
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are entirely compatible. However, Apple computers also include some custom hardware and design choices not found in competing systems:
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that would allow booting contemporary standard PC operating systems. Apple updated the firmware with CSM support with the release of
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rely on BIOS mode to initialize the video hardware, and hence under EFI-booting, Linux and X do not have hardware accelerated video.
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with support locating the bootloader based on the "blessed directory" and "blessed file" properties of HFS+ and APFS volumes. The
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Rudimentary pre-boot GUI framework, including support for image drawing, mouse cursor and events. This is used by
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additionally uses a custom internal USB device dubbed "iBridge" as an interface to the Touch Bar and
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Intel-based Mac computers use very similar hardware to PCs from other manufacturers that ship with
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became necessary. Extensible Firmware Interface (EFI) is the firmware-based replacement for the PC
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Intel Macs can boot in two ways: directly via EFI, or in a "legacy" BIOS compatibility mode. For
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of Intel-based Apple computers. For information about the transition to this architecture, see
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Other non-standard EFI services for managing various firmware features such as the computer's
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used in their successors. As Apple changed the architecture of its products, they changed the
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After the initial announcement of first Intel-based Mac hardware configurations, reporting a
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Please help update this article to reflect recent events or newly available information.
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is a custom Apple chip that controls various functions of the computer related to
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and booting alternative operating systems on Mac computers – Apple only provides
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The references used may be made clearer with a different or consistent style of
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also offers a Mac virtualization product competing with Parallels called
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is another piece of virtualization software originally from Innotek (now
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Service Pack 2. The first non-beta version of Boot Camp is included in
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Unofficial name used for Macintosh models that use Intel x86 processors
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Boot process. All Intel-based Macs have been using some version of
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Additional custom hardware may include a GMUX chip that controls
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from Intel. Designed by Intel, it was chosen by Apple to replace
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to present the login screen before loading the operating system.
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is thus not used or necessary for regular macOS boot process.
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On April 5, 2006, Apple made available for download a public
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that provides a subset of traditional BIOS support with its
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Some of these differences can pose as obstacles both to
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Intel EFI open-source implementation, code-name 'Tiano'
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need to be written by third parties, usually volunteer
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The first virtualization software for Intel Macs was
1309:"Technology | Apple makes Macs run Windows XP" 912:, although some of them are accessible through the 180:. Unsourced material may be challenged and removed. 1109:, which allows for high performance (near-native) 1890:"The GNU General Public License (GPL) Version 3" 1568:"Print Screen on Windows 7 with Apple Keyboard" 1008:); drivers for other operating systems such as 1786:""TPM DRM" In Mac OS X: A Myth That Won't Die" 1200:"UEFI firmware security in an Intel-based Mac" 771: 1494:"GPU switching support for Apple Macbook Pro" 625:With the change in architecture, a change in 500: 398:processors used in their predecessors or the 8: 677:is commonly used for added configurability. 1701:: CS1 maint: numeric names: authors list ( 1105:The processors found in Intel Macs support 558:. Unsourced material may be challenged and 82:Learn how and when to remove these messages 775:below). Intel-based Mac doesn't implement 507: 493: 431: 802:interconnect. Since the 2013 revision of 578:Learn how and when to remove this message 352:Learn how and when to remove this message 298:Learn how and when to remove this message 240:Learn how and when to remove this message 138:Learn how and when to remove this message 1679:"FileVault 2 – UEFI – InsanelyMac Forum" 1613: 1611: 1452:"Linux driver for Synaptics USB devices" 1427:"State of Linux on the MacBook Pro 2016" 937:in April 2006, and since the release of 913: 907: 899: 892: 885: 878: 872: 1167: 434: 1812:"Running Mac OS X as a QEMU/KVM Guest" 1737:Victor Mihailescu (January 13, 2006). 1694: 790:computers used an internal variant of 689:, which can easily be booted via EFI. 7: 863:. While PC keyboards can be used in 855:has significant differences between 556:adding citations to reliable sources 178:adding citations to reliable sources 990:running macOS on non-Apple hardware 845:and non-standard configurations of 841:, non-compliant implementations of 1619:"Myths and Facts About Intel Macs" 1156:Mac transition to Intel processors 746:operating systems. In particular, 36:Mac transition to Intel processors 25: 372:, is an unofficial name used for 63:This article has multiple issues. 806:, Apple started to use a custom 611:The EFI and GUID Partition Table 528: 444: 314: 256: 154: 93: 52: 1927:from the original on 2023-08-11 1871:from the original on 2023-08-11 1842:from the original on 2023-08-11 1657:"bless(8) Mac OS X Manual Page" 165:needs additional citations for 71:or discuss these issues on the 1285:"Change your Mac startup disk" 1261:"Mac startup key combinations" 867:, as well as Mac keyboards in 379:developed and manufactured by 1: 1788:. Osxbook.com. Archived from 734:Differences from standard PCs 617:Extensible Firmware Interface 605:Extensible Firmware Interface 396:Motorola 68000 ("68k") series 1913:Cheng, Jacqui (2007-02-08). 1336:. 2007-03-06. Archived from 1095:System Management Controller 996:for its custom hardware for 931:Compatibility Support Module 782:Laptop input devices. Early 763:System Management Controller 693:To non-Mac operating systems 643:Compatibility Support Module 390:processors, rather than the 818:components, as well as the 808:Serial Peripheral Interface 429:with macOS as the host OS. 1995: 1645:. Microsoft. January 2013. 1407:. The Register. 2013-07-15 696: 614: 189:"Apple–Intel architecture" 40: 30:This article is about the 29: 1542:Leif Liddy (2016-01-09). 1472:"TouchPad Driver Support" 1180:docs.elementscompiler.com 1118:Parallels Desktop for Mac 1025:Digital rights management 1020:Digital rights management 772:Digital Rights Management 323:This article needs to be 1386:. serato.com. 2009-10-29 810:controller instead. The 707:Mac Mini with Intel Core 662:To Mac operating systems 601:standard PC architecture 481:Developer Transition Kit 366:Apple–Intel architecture 107:may need to be rewritten 1739:"Don't Steal Mac OS X!" 1091:Trusted Platform Module 109:. The reason given is: 1861:"News (older entries)" 1677:vit9696 (2016-10-28). 708: 1623:refit.sourceforge.net 1384:Software help archive 706: 427:native virtualization 1719:. Oracle Corporation 1162:References and notes 966:EFI System Partition 699:Boot Camp (software) 621:GUID Partition Table 552:improve this section 174:improve this article 1548:bugzilla.kernel.org 1523:bugzilla.kernel.org 1176:"CPU Architectures" 982:and boot arguments. 843:solid-state storage 834:, may also be used. 1969:IBM PC compatibles 1964:Macintosh platform 1810:Gabriel L. Somlo. 1126:Oracle Corporation 709: 377:personal computers 43:Apple Intelligence 1517:TJ (2015-09-29). 1002:Microsoft Windows 945:has required its 869:Microsoft Windows 740:Microsoft Windows 588: 587: 580: 517: 516: 436:Mac transition to 419:Microsoft Windows 362: 361: 354: 344: 343: 308: 307: 300: 250: 249: 242: 224: 148: 147: 140: 120:lead layout guide 86: 16:(Redirected from 1986: 1979:64-bit computers 1974:32-bit computers 1936: 1935: 1933: 1932: 1910: 1904: 1903: 1901: 1900: 1886: 1880: 1879: 1877: 1876: 1857: 1851: 1850: 1848: 1847: 1828: 1822: 1821: 1819: 1818: 1807: 1801: 1800: 1798: 1797: 1781: 1775: 1774: 1772: 1771: 1759: 1753: 1752: 1750: 1749: 1734: 1728: 1727: 1725: 1724: 1713: 1707: 1706: 1700: 1692: 1690: 1689: 1674: 1668: 1667: 1665: 1664: 1653: 1647: 1646: 1639: 1633: 1632: 1630: 1629: 1615: 1606: 1605: 1603: 1602: 1588: 1582: 1581: 1579: 1578: 1564: 1558: 1557: 1555: 1554: 1539: 1533: 1532: 1530: 1529: 1514: 1508: 1507: 1505: 1504: 1492:Andreas Heider. 1489: 1483: 1482: 1480: 1479: 1468: 1462: 1461: 1459: 1458: 1447: 1441: 1440: 1438: 1437: 1425:Daniel Roschka. 1422: 1416: 1415: 1413: 1412: 1401: 1395: 1394: 1392: 1391: 1376: 1370: 1369: 1367: 1366: 1355: 1349: 1348: 1346: 1345: 1330: 1324: 1323: 1321: 1320: 1305: 1299: 1298: 1296: 1295: 1281: 1275: 1274: 1272: 1271: 1257: 1251: 1246:Note, Linux and 1244: 1238: 1237: 1235: 1234: 1220: 1214: 1213: 1211: 1210: 1196: 1190: 1189: 1187: 1186: 1172: 1085: 1081: 1077: 1073: 1069: 1065: 1061: 1057: 1053: 1049: 1041: 1040:page_transform() 1032:operating system 953:Drivers for the 861:IBM PC keyboards 812:2016 MacBook Pro 767:power management 583: 576: 572: 569: 563: 532: 524: 509: 502: 495: 466:Universal binary 448: 438:Intel processors 432: 357: 350: 339: 336: 330: 318: 317: 310: 303: 296: 292: 289: 283: 260: 259: 252: 245: 238: 234: 231: 225: 223: 182: 158: 150: 143: 136: 132: 129: 123: 116:improve the lead 97: 96: 89: 78: 56: 55: 48: 21: 1994: 1993: 1989: 1988: 1987: 1985: 1984: 1983: 1954: 1953: 1945: 1940: 1939: 1930: 1928: 1912: 1911: 1907: 1898: 1896: 1888: 1887: 1883: 1874: 1872: 1859: 1858: 1854: 1845: 1843: 1830: 1829: 1825: 1816: 1814: 1809: 1808: 1804: 1795: 1793: 1783: 1782: 1778: 1769: 1767: 1761: 1760: 1756: 1747: 1745: 1736: 1735: 1731: 1722: 1720: 1715: 1714: 1710: 1693: 1687: 1685: 1683:insanelymac.com 1676: 1675: 1671: 1662: 1660: 1655: 1654: 1650: 1641: 1640: 1636: 1627: 1625: 1617: 1616: 1609: 1600: 1598: 1590: 1589: 1585: 1576: 1574: 1566: 1565: 1561: 1552: 1550: 1541: 1540: 1536: 1527: 1525: 1516: 1515: 1511: 1502: 1500: 1491: 1490: 1486: 1477: 1475: 1470: 1469: 1465: 1456: 1454: 1450:Jan Steinhoff. 1449: 1448: 1444: 1435: 1433: 1424: 1423: 1419: 1410: 1408: 1403: 1402: 1398: 1389: 1387: 1378: 1377: 1373: 1364: 1362: 1357: 1356: 1352: 1343: 1341: 1332: 1331: 1327: 1318: 1316: 1307: 1306: 1302: 1293: 1291: 1283: 1282: 1278: 1269: 1267: 1259: 1258: 1254: 1245: 1241: 1232: 1230: 1222: 1221: 1217: 1208: 1206: 1198: 1197: 1193: 1184: 1182: 1174: 1173: 1169: 1164: 1152: 1103: 1083: 1079: 1075: 1071: 1067: 1063: 1059: 1055: 1051: 1047: 1039: 1022: 917: 909: 903: 897: 890: 883: 876: 853:Keyboard layout 820:FaceTime Camera 736: 701: 695: 664: 659: 623: 615:Main articles: 613: 593: 584: 573: 567: 564: 549: 533: 522: 513: 437: 358: 347: 346: 345: 340: 334: 331: 328: 319: 315: 304: 293: 287: 284: 273: 267:has an unclear 261: 257: 246: 235: 229: 226: 183: 181: 171: 159: 144: 133: 127: 124: 113: 98: 94: 57: 53: 46: 39: 28: 23: 22: 15: 12: 11: 5: 1992: 1990: 1982: 1981: 1976: 1971: 1966: 1956: 1955: 1952: 1951: 1944: 1943:External links 1941: 1938: 1937: 1905: 1894:virtualbox.org 1881: 1865:virtualbox.org 1852: 1838:. 2016-06-14. 1823: 1802: 1776: 1754: 1729: 1708: 1669: 1648: 1634: 1607: 1583: 1559: 1534: 1509: 1484: 1463: 1442: 1417: 1396: 1371: 1350: 1325: 1300: 1276: 1252: 1239: 1228:Apple Newsroom 1215: 1191: 1166: 1165: 1163: 1160: 1159: 1158: 1151: 1148: 1111:virtualization 1102: 1101:Virtualization 1099: 1060:SystemUIServer 1042:that performs 1021: 1018: 986: 985: 984: 983: 976: 969: 919: 850: 835: 780: 735: 732: 728:Mac OS X v10.5 697:Main article: 694: 691: 663: 660: 658: 655: 612: 609: 592: 589: 586: 585: 536: 534: 527: 521: 518: 515: 514: 512: 511: 504: 497: 489: 486: 485: 484: 483: 478: 473: 468: 463: 458: 450: 449: 441: 440: 360: 359: 342: 341: 322: 320: 313: 306: 305: 269:citation style 264: 262: 255: 248: 247: 162: 160: 153: 146: 145: 102:The article's 101: 99: 92: 87: 61: 60: 58: 51: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1991: 1980: 1977: 1975: 1972: 1970: 1967: 1965: 1962: 1961: 1959: 1950: 1947: 1946: 1942: 1926: 1922: 1921: 1916: 1909: 1906: 1895: 1891: 1885: 1882: 1870: 1866: 1862: 1856: 1853: 1841: 1837: 1833: 1827: 1824: 1813: 1806: 1803: 1792:on 2020-01-03 1791: 1787: 1780: 1777: 1766:. 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Index

Mactel
architecture
Mac transition to Intel processors
Apple Intelligence
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talk page
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lead section
improve the lead
lead layout guide
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verification
improve this article
adding citations to reliable sources
"Apple–Intel architecture"
news
newspapers
books
scholar
JSTOR
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citation style
citation
footnoting
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Learn how and when to remove this message
Macintosh
personal computers
Apple Inc.

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