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Macintosh Classic II
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<h2 id="models">Models</h2> <ul><li>Macintosh Classic II:<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> Sold in two configurations:<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> <ul><li>2/40: 2 MB RAM, 40 MB HDD. USD $1,899.</li> <li>4/80: 4 MB RAM, 80 MB HDD. USD $2,399.</li></ul></li> <li>Macintosh Performa 200:<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a></li></ul> <h2 id="hardware">Hardware</h2> <p>Processor: 16 MHz (15.6672 MHz) <a href="/facts/Motorola_68030/LyQfEWeB">Motorola 68030</a> (32-bit internally, 16-bit bus), with an optional <a href="/facts/Motorola_68882/LTT5myBv">Motorola 68882</a> FPU </p><p>RAM: 2 <a href="/facts/Megabyte/RBF4XpWb">MB</a>, expandable to 10 MB using two 100 ns 30-pin <a href="/facts/SIMM/hSDqXXYb">SIMMs</a> </p><p>Display: 9" monochrome screen, 512 × 342 <a href="/facts/Pixel/UzwBvXBV">pixels</a> </p><p>Audio: 8-bit mono <a href="/facts/Sampling_rate/xxck7aLN">22 kHz</a> </p><p>Hard drive: 40 or 80 MB </p><p>Floppy: 1.44 MB double-sided </p><p>Addressing: 24-bit or 32-bit </p><p>Battery: 3.6 V lithium </p><p>Expansion: Connectors on the rear panel include an <a href="/facts/Apple_Desktop_Bus/h7frV8FV">ADB</a> port for keyboard and mouse, two <a href="/facts/Mini-DIN/AvyX39tF">mini-DIN</a>-8 <a href="/facts/RS-422/le2rYC8T">RS-422</a> <a href="/facts/Serial_port/VpcrH530">serial ports</a>, <a href="/facts/DB-25/ygqtB3CQ">DB-25</a> <a href="/facts/SCSI/pxXulrBr">SCSI</a>, <a href="/facts/DB-19/ygqtB3CQ">DB-19</a> External floppy drive, and two 3.5 mm <a href="/facts/Phone_connector_(audio)/KvpIlV94">minijack audio sockets</a> for audio in and headphone out. </p><p>The Classic II has a 50-pin internal expansion slot intended for either an <a href="/facts/Floating-point_unit/XWTW2AbF">FPU</a> co-processor or additional <a href="/facts/Read-only_memory/P9QMuDLH">ROM</a>.<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> The socket is unsuited for use as a general purpose expansion slot. Apple never produced an expansion card for this slot,<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a> although third-party FPUs were available including the FastMath Classic II by Applied Engineering<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a> and Sonnet offered a synchronous (16 MHz) and asynchronous (50 MHz) <a href="/facts/Motorola_68881/LTT5myBv">68882</a> FPU. Retro computing hobbyists have also subsequently produced open-source designs for this slot.<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a> </p> <p>The main board from the Classic II (left) contains the logic for the system. High voltage components such as the <a href="/facts/Power_supply_unit_(computer)/3nvssXFG">PSU</a> and <a href="/facts/Cathode-ray_tube/8NVGx5C7">CRT</a> driver circuitry were on a separate "analogue" board. The 68030 CPU can be seen on the right, which is next to the FPU/ROM expansion slot. Two ROM chips in sockets are below the CPU. The RAM is to the bottom left. This model contains 4MB, of which 2MB is soldered to the board and 2MB is in <a href="/facts/SIMM/hSDqXXYb">SIMM</a> sockets. Just above the RAM is the Apple "Eagle" chip which contains video interface circuitry and glue logic. Above that is an AMD manufactured SCSI controller and serial chip, close to an internal and external SCSI connector used to attach hard disks or other peripherals. There is a <a href="/facts/Non-volatile_memory/EN72wMD9">PRAM</a> battery carrier to the left of the CPU (the battery is not present) with an internal floppy drive connector just above it with the floppy controller chip on the left. To the right of the floppy connector is an 8-bit microcontroller which manages the ADB bus. </p> <h2 id="gallery">Gallery</h2> <table><tbody><tr><td></td><td>Back of the Classic II</td></tr><tr><td></td><td>The interrupt (left) and reset (right) buttons protruding from the air vent on the lower left hand side of the Classic II. The interrupt button (also called the <a href="/facts/Programmer%27s_key/v9KpNePw">programmer's key</a>) is used to access a <a href="/facts/Debugger/mCe6UsWj">debugger</a>.</td></tr><tr><td></td><td>The <a href="/facts/Apple_Desktop_Bus/h7frV8FV">ADB</a> keyboard that shipped with the Classic II. On many Macs the large button at the top near the Apple logo was used to power on the machine. However, this feature was unsupported by the Classic II. The keyboard contained two ADB connectors. One connected into the back of the Macintosh, the other was used for connecting the mouse or other peripherals. The mouse could be connected to either side for left- or right-handed use.</td></tr><tr><td></td><td>The ADB mouse that shipped with the Classic II.</td></tr></tbody></table> <h2 id="timelines">Timelines</h2> <table><tbody><tr><th>Timeline of <a href="/facts/Compact_Macintosh/G4eeH4vr">Compact Macintosh</a> models <ul><li>v</li><li>t</li><li>e</li></ul></th></tr><tr><td><p class="note">See also: <a href="/facts/List_of_Mac_models/wNGkeW81">List of Mac models</a> and <a href="/facts/Compact_Macintosh/G4eeH4vr">Compact Macintosh</a></p></td></tr></tbody></table> <table><tbody><tr><th>Timeline of <a href="/facts/Macintosh_Centris/pzGJmWPf">Macintosh Centris</a>, <a href="/facts/Macintosh_LC/GPW1vcuf">LC</a>, <a href="/facts/Macintosh_Performa/kknuwIMa">Performa</a>, and <a href="/facts/Macintosh_Quadra/oplF0jWp">Quadra</a> models, colored by <a href="/facts/List_of_Mac_models_grouped_by_CPU_type/0fKf4WMr">CPU type</a> <ul><li>v</li><li>t</li><li>e</li></ul></th></tr><tr><td><p class="note">See also: <a href="/facts/List_of_Mac_models/wNGkeW81">List of Mac models</a></p></td></tr></tbody></table> <h2 id="external-links">External links</h2> <ul><li><a href="https://web.archive.org/web/20080828010300/http://www.mac512.com/macwebpages/classicii.htm">Classic II (Performa 200)Information pages</a> at Mac512.com</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Pogue, David; Schorr, Joseph (1999). MacWorld Mac Secrets, 5th Edition. IDG Books. ISBN 0-7645-4040-8. <a href="0-7645-4040-8" target="_blank">0-7645-4040-8</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Seiter, Charles (November 1992). "Mass Market Macs - Apple's New Performa Series Is Coming To A Store Near You". MacWorld Magazine. pp. 110–115. <a href="https://archive.org/stream/MacWorld_9211_November_1992#page/n117/mode/2up" target="_blank">https://archive.org/stream/MacWorld_9211_November_1992#page/n117/mode/2up</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Seiter, Charles (November 1992). "Mass Market Macs - Apple's New Performa Series Is Coming To A Store Near You". MacWorld Magazine. pp. 110–115. <a href="https://archive.org/stream/MacWorld_9211_November_1992#page/n117/mode/2up" target="_blank">https://archive.org/stream/MacWorld_9211_November_1992#page/n117/mode/2up</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Macintosh Classic II: Technical Specifications". Apple. <a href="https://support.apple.com/kb/sp204" target="_blank">https://support.apple.com/kb/sp204</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"Apple User Group Connection - December 1991". Apple. <a href="https://www.youtube.com/watch?v=VTlsODfUkjE" target="_blank">https://www.youtube.com/watch?v=VTlsODfUkjE</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"Macintosh Performa 200:Technical Specifications". Apple. <a href="https://support.apple.com/kb/SP213" target="_blank">https://support.apple.com/kb/SP213</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"Apple Macintosh Classic II Developer Note" (PDF). 1991. pp. 27–28. {{cite magazine}}: Cite magazine requires |magazine= (help) <a href="http://members.optusnet.com.au/eviltim/macmp3/Mac_Classic_II.pdf" target="_blank">http://members.optusnet.com.au/eviltim/macmp3/Mac_Classic_II.pdf</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>Macintosh Classic II: Math Co-Processor Card Availability <a href="http://docs.info.apple.com/article.html?artnum=10090" target="_blank">http://docs.info.apple.com/article.html?artnum=10090</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>Access my library [dead link] <a href="http://www.accessmylibrary.com/coms2/summary_0286-9244729_ITM" target="_blank">http://www.accessmylibrary.com/coms2/summary_0286-9244729_ITM</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>Dymczyk, Marcin (May 2, 2023), Macintosh Classic II FPU card, retrieved July 9, 2023 <a href="https://github.com/dymczykm/classic_ii_fpu" target="_blank">https://github.com/dymczykm/classic_ii_fpu</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> </ol>