iMac 21.5-inch macOS Sierra and all software needed (Customised)

Model Name: iMac Model Identifier: iMac14,4 Processor Name: Intel Core i5 Processor Speed: 1.4 GHz Number of Processors: 1 Total Number of Cores: 2 L2 Cache (per Core): 256 KB L3 Cache: 3 MB Memory: 8 GB Boot ROM Version: IM144.0179.B13 SMC Version (system): 2.21f92 Serial Number (system): C02N301QFY0V Hardware UUID: CBD6614B-A0B6-5DB2-81A9-846AF8062014