% -*- coding: utf-8 -*- \chapter{68k Macintoshes} %\begin{center} %\includegraphics[height=3in]{68k/68030.pdf} \\ %\end{center} %\paragraph{\scriptsize{\textsc{% %The 68030, one of the processors found in 68k Macintosh computers. This one runs at % %20 MHz, which wasn't found in any socketed Macintoshes... had they been socketed, % %this grade of CPU would be found in a IIsi. All 68030s in the above packaging look % %pretty much the same anyway. Don't worry about it too much. % %}}} \paragraph{% The Motorola 68000 series microprocessors were at the heart of every Macintosh % until early 1994, when the first PowerPC-based workstations, known as Power % Macintoshes, were released. Even after the release of the wildly successful % Power Macintosh line, Macintoshes built around the 68040 were sold until % their discontinuation in October of 1996. % } \paragraph{% The Motorola 68000 microprocessor was, a full decade after its introduction to % market, regarded widely as one of the most powerful and versatile production % microprocessors available. It is worth noting that in this decade the % significantly enhanced 68020 and 68030 had started to enjoy widespread use % in workstations; no small praise then that the 68000 should stay relevant! % } \paragraph{% On the topic of workstations, it is important to note a special machine which % will not be covered in this text; the Macintosh XL. Ostensibly a repurposed % Apple Lisa 2/10 with an Emulation Package allowing for the seamless execution % of well-behaved Macintosh Software, the XL is not a Macintosh in the truest % sense of the term; rather it is an inelegant attempt to recoup costs on a % failed product. Aside from that attempting Lisa repairs or service in this % day and age is an insane (not insanely great, merely insane) proposition, the % Lisa falls outside the scope of this text. Information on the Lisa is, however, % plentiful, if you know where to look, and I strongly encourage you to do so, if % only to get a glimpse of what was a groundbreaking computer in its time. % } \paragraph{% Several 68k microprocessors have been manufactured by Motorola over the years, % and not all of them enjoy electrical similarities or code-compatibility. As such, % it is important to note the particular microprocessors you will be dealing with. % 68000-series microprocessors likely to be found in the 68k Macintoshes you will % come across are the 68000, 68020, 68030, 68LC040, and 68040. % } % Compact Macs \input{68k/01a_68kCompact.tex} % Macintosh II \input{68k/01b_MacintoshII.tex}