Editing Apple Lisa (section)

====Lisa 2 (1984–1985)====
[[File:Apple Lisa2-IMG 1517.jpg|thumb|Lisa 2]]
The second hardware revision, the Lisa 2, was released in January 1984 and was priced between {{US$|3495|long=no}} and {{US$|long=no|5495}}.<ref name="AC"/>{{rp|79}}<ref>{{cite web|url=http://macgui.com/usenet/?group=6&id=278|title=Mac GUI :: Re: MACINTOSH opinion and request|website=macgui.com}}</ref> It was much less expensive than the original model, and dropped the Twiggy floppy drives in favor of a single [[Macintosh External Disk Drive#400K|400K Sony microfloppy]].<ref name="infoworld_lisa2_intro_pg65">{{cite magazine|last=Mace|first=Scott|title=Apple introduces Lisa 2; basic model to cost {{US$|long=no|3500}}|magazine=[[InfoWorld]]|date=February 13, 1984|volume=6|issue=7|pages=65–66|url=https://books.google.com/books?id=gi4EAAAAMBAJ&pg=PA65|access-date=January 6, 2014}}</ref> The Lisa 2 has as little as 512 KB of RAM.

The Lisa 2 line of products included the '''Lisa 2/5''' which consisted of a Lisa 2 bundled with an external ProFile hard drive (5 megabyte capacity)  or '''Lisa 2/10''' with external ProFile hard drive (10 megabyte capacity) .<ref name=mac_repair_secrets_pg236>{{cite book|last=Pina|first=Larry|title=Macintosh Repair & Upgrade Secrets |url=https://archive.org/details/mac_Macintosh_Repair_Upgrade_Secrets_1990 |year=1990|publisher=Hayden Books|location=Carmel, IN, USA|isbn=0672484528 |lccn=89-6375 |page=236|edition=1st|author-link=Larry Pina}}</ref> 

Owners of the original Lisa (1983) computer with Twiggy drives and software, were offered free upgrades to the Lisa 2.  The upgrade replaced the pair of Twiggy drives with a single 3.5-inch drive,<ref name="infoworld_lisa2_intro_pg65" /> and updating the boot ROM and I/O ROM and modification to the IO board. The upgrade included the new Lisa 2's new front faceplate to accommodate the newer microdisk (400K) drive which incorporated the new inlaid Apple logo.  This faceplate was the first to incorporate Apples [[Snow White design language]] elements. 

Developing early Macintosh software required a Lisa{{spaces}}2.<ref name="dacruz19840611">{{cite mailing list | url=http://www.columbia.edu/kermit/ftp/e/mail.84b | title=Macintosh Kermit No-Progress Report | publisher=Kermit Project, Columbia University | mailing-list=Info-Kermit mailing list | date=June 11, 1984 | access-date=February 24, 2016 | author=da Cruz, Frank}}</ref> There were relatively few third-party hardware offerings for the Lisa, as compared to the earlier {{nowrap|[[Apple II]]{{px2}}{{mdash}}{{px2}}}}[[AST Research|AST]] offered a {{val|1.5|ul=MB}} memory board which, when combined with the standard Apple {{val|512|ul=KB}} memory board, expanded the Lisa to a total of {{val|2|u=MB}} of memory, the maximum amount that the [[Memory management unit|MMU]] can address.

Late in the product life of the Lisa, there were third-party hard disk drives, [[SCSI host adapter|SCSI controllers]], and [[Double-sided disk|double-sided 3.5-inch floppy-disk]] upgrades. Unlike the original Macintosh, the Lisa has expansion slots. The Lisa 2 motherboard has a very basic [[backplane]] with virtually no electronic components, but plenty of [[edge connector]] sockets and slots. There are two RAM slots, one CPU upgrade slot, and one [[Input/output|I/O]] slot, all in parallel. At the other end are three Lisa slots in parallel.

Late in 1984, the '''Lisa 2/10''' spun off another variation that incorporated an internal 10 MB hard drive (Widget Drive), a modified motherboard removing the parallel port and internal cards, with upgraded power supply, along with the standard configuration of {{val|1|u=MB}} of RAM.<ref name="mac_repair_secrets_pg236"/> There was no upgrade path for this configuration as the hardware and wiring harness was electrically incompatible with the original Lisa 1 or 2 chassis."

=====Macintosh XL (1985–1986)=====
[[File:Macintosh XL 1.jpg|thumb|Macintosh XL]]
{{Main|Macintosh XL}}
In January 1985, following the release of the Macintosh, the Lisa 2/10 (with integrated 10&nbsp;MB hard drive) was rebranded as Macintosh XL.  positioning it as the high-end Macintosh. The price was lowered yet again, to $4,000, and sales tripled, but CEO [[John Sculley]] said that Apple would have lost money increasing production to meet the new demand.<ref name="Infoworld June 3, 1985">{{cite magazine | magazine=[[InfoWorld]] | title=Apple's LISA meets a bad end | date=June 3, 1985 | first=Christine | last=McGeever | url=https://books.google.com/books?id=8C4EAAAAMBAJ&q=Apple%27s+LISA+meets+a+bad+end&pg=PA20 | access-date=October 26, 2017 |volume=7|issue=22| pages=21–22|issn=0199-6649}}</ref> There was an upgrade kit for Lisa computers that included a hardware and software kit, enabling it to reboot into Macintosh mode and display SQUARE pixels in place of the rectangular pixels of the Lisa.

Apple discontinued the Macintosh XL, leaving an eight-month void in Apple's high-end product line until the [[Macintosh Plus]] was introduced in 1986.