1.2.1 - Memory Management, Paging, Segmentation & Virtual M

As you open or run something the OS allocates _____________ to it.

• The Kernel

• Memory

• Storage

• Disk Space

Your RAM is controlled and allocated by the ___________________

• CPU

• ROM

• Operating System

• Registers

If memory runs out, then ....

• The computer will continue as normal

• The computer decreases in processing speed

• The computer will not handle any more applications being run

• The computer will start new processes

You can manage memory by using ....

• Task manager

• The bootstrap

• The OS

• The VRAM

There are two types of optimisation techniques used by a OS, they are ...

• Paging

• Planning

• Segmentation

• Segregation

Paging ...

• Splits programs into different sizes across memory

• Splits programs into the same size across memory

• Moves the data around

• Allows data to be non-contiguously stored

Paging can ...

• Store items not currently in use into secondary storage as VM

• Split programs into the same size across memory

• Moves the data around

• Allows data to be contiguously stored

Segmentation ...

• Does not store items not currently in use into secondary storage

• Splits programs into different sizes across memory

• Moves the data around

• Allows data to be contiguously stored

Segmentation ...

• Loads part of a program into a logical split

• Loads part of a program into a specific sized split

• Affects the performance as data may not be contiguously stored

• Does not affect the performance as data may not be contiguously stored

What does contiguous mean?

• Data is split into random allocations

• Data is stored randomly another

• Data is illogically stored onto memory

• Data is logically stored one after another