Apple imac a1418 21.5" (late-2013) i5-5575r 2.8ghz, 1tb hdd, 16 gb ram mk442ll/a
the imac "core i5" 2.8 21.5-inch aluminum (late 2015/broadwell) features a 14-nm "broadwell" quad core 2.8 ghz intel "core i5" processor (5575r) with four independent processor "cores" on a single chip, a 4 mb shared level 3 cache, 16 gb of onboard 1867 mhz lpddr3 sdram 1 tb (5400 rpm) hard drive, and an "integrated" intel iris pro 6200 graphics processor that shares system memory. it also has a built-in "facetime hd" webcam and stereo speakers.
specs at a glance:
*21.5" 1920x1080 led-backlit 16:9 widescreen ips display
*intel core i5 2.8ghz quad-core "broadwell" processor
*16gb ddr3 ram
*1tb hard drive
*intel iris pro 6200 graphics processor
*facetime hd camera
*four usb 3, two thunderbolt and gigabit ethernet
*wi-fi 802.11ac (802.11a/b/g/n compatible) and bluetooth 4.0
*macos