OS

Computer's core software

OS is the abbreviation for operating system—the software that manages a computer's basic functions and runs other programs.

Windows, macOS, Linux, and Android are all operating systems: Which OS are you running?

The new OS update broke my printer. (Lowercase os is a Latin anatomical term.)

interface

desktop

Primary computer interface

icons · widgets · menu · window · notification · dialog · shortcut · terminal · shell · dock

brands

Windows

Microsoft operating system

  • LinuxOpen-source operating system kernel
  • AndroidGoogle's phone platform
  • UbuntuInterconnected humanity, or its namesake OS

Debian · Unix · Solaris

kernel

operating system

Software managing computer resources

scheduler · multitasking · interrupt · driver · daemon · service · init · permissions · root · admin

platform

hardware

Metal goods and fittings

  • architectureBuilding design discipline
  • CPUMain computing chip
  • ARMReduced instruction processor standard

x86 · Intel · AMD · firmware · UEFI · compatibility · embedded · server · mainframe · workstation

software

application

Formal request document

patch · version · repository · bundle · executable · runtime · dependency · uninstall · registry · configuration

Categories
Opposites
software layer/type

OSapplication

Formal request document

app · software application · desktop application · mobile app · program

hardware vs. software

OShardware

Metal goods and fittings

bare metal · firmware · circuitry · silicon · CPU

Phrases
  • Mac OSApple's computer platform
  • OS XFormer Mac operating environment
  • Chrome OSGoogle's browser-focused operating system
Family

macOS, BIOS, iOS, DOS, MS-DOS

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Rated G