Device Details (iMac 21.5-inch, Mid 2011) The device shown in the picture is likely an iMac (21.5-inch display, Mid 2011), which is an all-in-one desktop computer from Apple. Apple Support Apple Support +1 💻 Operating System and Software Current Version: Mac OS X Lion 10.7.5, which is the last update for this system released in 2012. Compatibility: This device is technically old; it does not support the latest official macOS versions, which may limit the ability to run modern applications or recently developed browsers. Wikipedia Wikipedia +1 Processor and Memory Processor (CPU): 2.5 GHz Intel Core i5 processor, a quad-core processor from the Sandy Bridge generation. Memory (RAM): 16 GB of DDR3 RAM at 1333 MHz. Note: This capacity is the maximum officially supported by Apple for this model, and it is very good for the device's age and helps it run more smoothly. Apple Support Apple Support +3 🖼 Display and Graphics Display: 21.5-inch TFT display with LED backlighting, resolution of 1920 × 1080 pixels (Full HD). Graphics Card (GPU): This model often comes with an AMD Radeon HD 6750M card with 512 MB of GDDR5 memory. Apple Support Apple Support +1 🔌 Ports and Connectivity Thunderbolt: It has one port for high-speed data transfer or connecting external displays. Other Connections: It has 4 USB 2.0 ports, a FireWire 800 port, an SDXC card reader, and a FaceTime HD camera. Processor Type: Intel Core i5 Brand: Apple Storage Type: HDD RAM Size: 16 GB Graphics Card: Integrated Operating System: macOS