open-sourceos

noun
UK /ˈəʊpən sɔːs ˌəʊˈes/
US /ˈoʊpən sɔːrs ˌoʊˈes/

Open-source OS is a computer system that anyone can look at, change, and share for free.

My dad installed an open-source OS on our old laptop so we could learn how computers work.


OTHER MEANINGS

2. A computer system whose hidden instructions are shared openly so people can fix or improve it.

The school's open-source OS lets students peek at the code behind the screen.

3. A free computer program that a group of people builds together and gives away.

Volunteers around the world work on this open-source OS every day.

4. A computer system you can copy and change without paying money.

She downloaded an open-source OS to turn her old tablet into a drawing tool.