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An iMac. It has the computer housed behind the screen, unlike most computers.

The iMac is an all-in-one personal computer that was first released in 1998. It is made by Apple Inc.. It has been the main part of Apple's consumer desktop offerings since its debut in August 1998, and has evolved through six distinct forms.[1]

Apple adopted Intel processors which post-2006 Macs now run on. Because Mac OS X was written for PowerPC at the time, Mac OS X ran in an emulation environment called Rosetta. Programs and applications received 'Universal Binary' updates to make them run reliably and use less resources of the Rosetta environment, instead hardware accelerating themselves.

iMac models after 2001 were shipped with macOS (formerly known as OS X).

The latest macOS version, 10.12 Sierra, is Intel processor dependent. No PowerPC based computer can run or install it meaning most of the iMac line are not 10.11 compatible.

Some of the newest iMac models don't have CD or disc drives.

Timeline of iMac models

<timeline> DateFormat=mm/dd/yyyy Define $now = 01/17/2017 # Please keep updated Period = from:07/15/1998 till:$now Define $skip = at:end # Force a blank line Define $dayunknown = 15 # what day to use if it's actually not known ImageSize= width:1000 height:auto barincrement:22 TimeAxis = orientation:horizontal PlotArea = right:4 left:0 bottom:100 top:5

Colors =

    id:bg         value:white
    id:g3         value:rgb(1,0.85,0.85) legend:iMac_(PowerPC_G3)
    id:g32        value:rgb(1,0.9,0.9)
    id:g4         value:rgb(1,0.85,0.65) legend:iMac_(PowerPC_G4)
    id:g42        value:rgb(1,0.9,0.7)
    id:g5         value:rgb(1,0.85,0.45) legend:iMac_(PowerPC_G5)
    id:g52        value:rgb(1,0.9,0.5)
    id:cored       value:rgb(0.8,1,0.8) legend:iMac_(Intel_Core_Duo)
    id:core2d      value:rgb(0.5,1,0.8) legend:iMac_(Intel_Core_2_Duo)
    id:core2d2     value:rgb(0.2,1,0.8)
    id:corei     value:rgb(0.1,1,0.5) legend:iMac_(Intel_Core_2_Duo/_Core_i)
    id:2008      value:rgb(0.1,0.9,0.8)
  1. id:core2e value:rgb(0,0.9,0.8) legend:iMac_(Intel_Core_2_Extreme) #
  2. id:blank value:rgb(0.99,0.99,0.99) legend:~_#
    id:corei2     value:rgb(0.78,1,0.35) legend:iMac_(Intel_Core_i_Gen3)
    id:corei3     value:rgb(0.85,0.9,0.45) legend:iMac_(Intel_Core_i_Gen4)
    id:corei5     value:rgb(0.9,0.9,0.55) legend:iMac_(Intel_Core_i_Gen5)
    id:corei6     value:rgb(0.9,0.95,0.7) legend:iMac_(Intel_Core_i_Gen6)
    id:emac       value:rgb(0.65,0.65,0.9) legend:eMac_(PowerPC_G4)
    id:emacl      value:rgb(0.85,0.85,0.95) legend:Limited_to_education
    id:current    value:rgb(0.9,0.9,0.9) legend:Still_currently_produced
    id:lightline  value:rgb(0.9,0.9,0.9) legend:other_Apple_products
    id:lighttext  value:rgb(0.5,0.5,0.5)

BackgroundColors = canvas:bg ScaleMajor = gridcolor:lighttext unit:year increment:1 start:12/31/1998 ScaleMinor = gridcolor:lightline unit:month increment:1 start:07/15/1998 Legend = orientation:vertical position:bottom columns:1

BarData =

 barset:main
 barset:other

PlotData=

 width:15 textcolor:black
 barset:main
   shift:(5,-5) anchor:from fontsize:s
   $skip
   $skip
   $skip
   color:g3 from:08/15/1998 till:10/05/1999 text:"G3"
 barset:break
   $skip
   $skip
   $skip
   color:g32 from:10/05/1999 till:03/18/2003 text:"G3 (slot loading)"
 barset:break
   color:emacl from:04/29/2002 till:06/04/2002
   color:g4 from:01/07/2002 till:08/30/2004 text:"G4 15″"
   color:g4 from:07/17/2002 till:08/30/2004 text:"G4 17″"
   color:g4 from:11/18/2003 till:08/30/2004 text:"G4 20″"
 barset:break
   color:emac from:06/04/2002 till:10/12/2005 text:"eMac"
   $skip
   color:g5 from:08/31/2004 till:01/10/2006 text:"G5 17″"
   color:g5 from:08/31/2004 till:03/20/2006 text:"G5 20″"
 barset:break
   color:emacl from:10/12/2005 till:07/05/2006
   $skip
   color:cored from:01/10/2006 till:09/06/2006 text:"Core"
   color:cored from:01/10/2006 till:09/06/2006 text:"Core"
 barset:break
   $skip
   $skip
   color:core2d from:09/06/2006 till:08/07/2007 text:"Core 2 17″"
   color:core2d from:09/06/2006 till:08/07/2007 text:"Core 2 20″"
   color:core2d from:09/06/2006 till:08/07/2007 text:"Core 2 24″"
 barset:break
   $skip
   $skip
   $skip
   color:core2d2 from:08/07/2007 till:10/20/2009 text:"Core 2 Alu 20″"
   color:core2d2 from:08/07/2007 till:10/20/2009 text:"Core 2 Alu 24″"
 barset:break
   $skip
   $skip
   $skip
   color:corei from:10/20/2009 till:10/23/2012 text:"Core 2/i 21.5″"
   color:corei from:10/20/2009 till:10/23/2012 text:"Core 2/i 27″"
 barset:break
   $skip
   $skip
   $skip
   color:corei2 from:11/30/2012 till:10/01/2013 text:"C i 21.5″"
   color:corei2 from:01/01/2013 till:10/01/2013 text:"C i 27″"
 barset:break
   $skip
   $skip
   $skip
   color:corei3 from:10/01/2013 till:10/13/2015 text:"C i 21.5″"
   color:corei3 from:10/01/2013 till:10/13/2015 text:"C i 27″"
 barset:break
   $skip
   $skip
   $skip
   color:corei5 from:10/13/2015 till:end text:"C i 21.5″"
   color:corei6 from:10/13/2015 till:end text:"C i 27″"
 barset:other
   shift:(5,-5) anchor:from fontsize:s
   color:lightline from:start till:07/23/1999 text:"Power Mac G3"
 barset:break
   color:current from:$now till:end

</timeline>

References

Other websites