The best replacement for operating system is application software.

The best alternatives to operating system are rated as following:

★★★★★	application software
★★★★	windows
★★★	kernel
★★★	application
★★★	unix
★★	firmware
★★	linux
★★	network operating system
★★	browser
★★	os
★★	platform
★	file system
★	32 bit
★	system software
★	dos
★	application program
★	operating system
★	64 bit
★	clean installation of operating system
★	programming language
★	client operating system
★	apple
★	64 bit operating system
★	windows operating system
★	an application
★	ice cream sandwich
	ice cream operating system
	32-bit
	windows xp
	microsoft windows
	solaris operating system
	64
	jelly bean
	xp
	apple operating system

Your alternative for operating system is not listed? Suggest!

Speaking about operating system, one probably shouldn't forget about hard drive.

Other search terms related to operating system and their ratings are:

★★★★★	hard drive
★★	case study of unix

You have in mind a companion for operating system and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of operating system in all years. Click on graph for more.

operating system

application software

windows