Please can any one tell me the difference between these two iOS images as I am looking to standardize on the better of the two.
CCME 1:
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.1(4)M, RELEASE SOFTWARE (fc1)
ROM: System Bootstrap, Version 15.0(1r)M10, RELEASE SOFTWARE (fc1)
System image file is "flash0:c2900-universalk9-mz.SPA.151-4.M.bin"
CCME 2:
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9_NPE-M), Version 15.1(4)M1, RELEASE SOFTWARE (fc1)
ROM: System Bootstrap, Version 15.0(1r)M9, RELEASE SOFTWARE (fc1)
System image file is "flash:c2900-universalk9_npe-mz.SPA.151-4.M1.bin"
Thank you.