Professional English

What Mac OS current editions?

• Apple, Ipad

• Sierra, Mojave

• iOS, Android

• Windows, System

What is an operating system?

• System software

• Multimedia

• Office program

• Personal computer

What are popular SoC operating system?

• Windows, Linux

• Mac OS, Ipad

• iOS, Android

• Linux kernel

What OS based on Linux Kernel?

• Android

• Mac OS

• Windows

• Symbian

What is the last version of iOS?

• 12

• 13

• 14

• 15

When was released Android 12?

• October 2021

• May 2021

• June 2021

• September 2021