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10 Cards in this Set

  • Front
  • Back

Functions ?

Provide UI


Manages : Processes, Memory, Input & output and Drives

Name 2 OS’s for computers

OS X


Linux

2 OS’s for Mobile devices

IOS


Android

How does OS do tasks simultaneously ?

Multitasking


Multithreading


Multiprocessing

What is MULTITASKING

Splitting the CPU time between different programs/ apps that are currently open.


Looks like the programs/apps are running at the same time to the user

What is Multithreading

When separate threads of a program run simultaneously

An Example of a program that is split into threads

Outlook

How would Multithreading work for a word processor ?

Thread 1 : User could be imputing data(typing a document)


2: Spell checking is happening in the background


3: User could be printing in the background


4: Auto save/ backup

What is MultiProcessing?

When Many processors are used to run processes .


Dividing tasks between more than one CPU

Example of multi-core processor

Dual core, Quad core, 72 Core(not common)