APPLE IMAC A1224 inCORE 2 DUOin 2.0 -2.4GHZ, 4GB RAM, 160GB HDD, 20in SCREEN, OS X EL CAPITAN The iMac A1224 has a 2.0-2.4Ghz Intel "Core 2 Duo" processor . That means two independent processor "cores" on a single chip. This machine packs: 4GBs of RAM ; a 160 hard drive disk ; and has been installed with Apple OS X El Capitan operating system. It features a 20-inch glossy screen with TFT Active Matrix LCD display ( 1680x1050 native ) Vertically-mounted slot-loading DVD "SuperDrive" NVIDIA GeForce graphics with 128 MB of memory shared with the system Built-in iSight video camera Built-in stereo speakers underneath the screen. Apple iMac All-in-One Desktop Computer with M4 chip with 10-core CPU and 10-core GPU: Built for Apple Intelligence, 24-inch Retina Display, 16GB Unified Memory, 256GB SSD storage; Blue BRILLLLLLIANT — iMac is the ultimate all-in-one desktop computer, powered by the M4 chip and built for Apple Intelligence ...