Operating systems

What is an operating system?

software that manages hardware and provides interface for the user and application software

What does the boot loader in ROM do when the computer is switched on?

it loads the OS into RAM

Why is the boot loader stored in ROM?

ROM is non-volatile

meaning bootloader will always be available to start the system

What is the boot loader a example of?

System software

Why is the application software important?

performs specific tasks for the user

What is user interface (UI)?

The way users interact with a computer or application

How can user interface happen?

buttons

icons

menus

What is software interface?

where different programs exchange data or instructions

Example of software interface?

importing subroutines

What devices have an OS?

Cars

Game consoles

VR Headsets

Smartphones

Aside from UI, ame other functions OS provides

Memory management

Interrupt handling

Processor scheduling

Why must programs and their data be loaded into RAM?

RAM is much faster than other types of storage

temporary storage that the CPU needs to access immediately

TRUE OR FALSE: Computers have a fixed amount of RAM

True