Apple Macintosh ROM
E201699
Apple Macintosh ROM is the built-in firmware of classic Macintosh computers that provides low-level hardware control and system startup routines used by operating systems and emulators.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Apple Macintosh ROM canonical | 1 |
| Macintosh Toolbox ROM | 1 |
| Macintosh system ROM | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
computer firmware
ⓘ
read-only memory ⓘ system ROM ⓘ |
| accessedBy | CPU at reset vector ⓘ |
| architecture |
Motorola 68000 family
ⓘ
surface form:
Motorola 680x0
|
| category |
Macintosh hardware
ⓘ
firmware for personal computers ⓘ |
| compatibleWith |
System 1
ⓘ
System 6 ⓘ System 7 (early versions) ⓘ
surface form:
System 7
|
| contains | Motorola 68000 machine code ⓘ |
| developedBy | Apple Inc. ⓘ |
| hasVariant |
1 MB ROM
ⓘ
128K ROM ⓘ 512K ROM ⓘ IIci ROM ⓘ Quadra series ⓘ
surface form:
Quadra ROM
|
| introducedInYear | 1984 ⓘ |
| introducedWith | original Macintosh 128K ⓘ |
| nonVolatile | true ⓘ |
| provides |
QuickDraw routines
ⓘ
Toolbox routines ⓘ boot device selection logic ⓘ bootstrapping for Macintosh operating systems ⓘ exception handling ⓘ hardware initialization code ⓘ interrupt handling ⓘ low-level I/O routines ⓘ low-level hardware control ⓘ self-test routines ⓘ system startup routines ⓘ |
| replacedBy |
Mac OS ROM file
ⓘ
New World ROM ⓘ |
| requiredBy |
Basilisk II
ⓘ
Mini vMac ⓘ SheepShaver ⓘ vMac ⓘ |
| roleInSystem |
abstracts hardware for operating system
ⓘ
contains Happy Mac startup icon code ⓘ contains Sad Mac error icon code ⓘ contains startup chime code ⓘ provides Macintosh Toolbox in ROM ⓘ |
| storedOn | ROM chips on logic board ⓘ |
| usedBy |
Classic Mac OS
ⓘ
surface form:
Mac OS Classic
Classic Mac OS ⓘ
surface form:
Macintosh System Software
Macintosh emulators ⓘ |
| usedIn | classic Macintosh computers ⓘ |
| usedUntilApprox | late 1990s ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Macintosh Toolbox ROM
this entity surface form:
Macintosh system ROM