IosUtsname
Information derived from utsname.
More info: http://pubs.opengroup.org/onlinepubs/7908799/xsh/sysutsname.h.html
Properties
- 
          machine(str) –Hardware type (e.g. "iPhone7,1"for iPhone 6 Plus).
- 
          node_name(str) –Network node name. 
- 
          release(str) –Release level. 
- 
          sys_name(str) –Operating system name. 
- 
          version(str) –Version level.