Functions of an operating system

An operating system acts as a bridge between...

• The user and the computer hardware

• The CPU and the RAM

• The BIOS and the cache memory

A small program held in ROM which instructs the computer to load the operating system on start up.

• BIOS

• Boot file

• Loader

Which function of the operating system controls the allocation of memory to the different programs which are running?

• Interrupts

• Memory management

• Scheduling

• Backing store management

Each program, open file or copied clipboard item must be allocated a specific area of _____ whilst the computer is running.

In which memory management technique is the memory divided into chunks of a fixed size?

• Paging

• Segmentation

What size are the memory chunks in paging?

• 4MB

• 4KB

• 400 bytes

• 40 bytes

In paging, the memory chunks used to store some data can be non-______. This means they are not next to each other in the memory.

In paging, a page table uses mapping to store a link between the _____ memory address and the logical address space of each process.

In segmentation, memory is divided into chunks of a fixed size.

• True

• False

Which memory management technique involves dividing address space into logical sections based on the programs and data which need to be stored?

• Paging

• Segmentation