GMetrix 1

An Operating System - OS - has 3 functions

• Provide security, run programs and allow internet service

• Manage resources, Executes apps, User Interface

• Uses open source and proprietory source software

• Uses sofware, uses hardware, uses the internet

Check the positive attributes of an iOS operating system:

• Used on an Android phone

• Used on an Apple phone

• Better security

• Support is available

Open Source software .....

• Usually costs a lot of money

• is sold by Apple

• has greater security

• Can be free or very cheap and modified

There are more apps for an iOS than for an Android OS

• True

• False

• This is not an option

• This is not an option

Android operating systems are used on approximately 70% of the mobile devices in the world

• True

• False

• This is not an option

• This is not an option

Check off 3 qualities of SSD Solid State Drive

• Faster than a hard disk drive

• Like a USB except more expensive

• It is the brain of the computer

• No moving parts - makes it more expensive

One drawback about a HDD Hard Disk Drive is that,,

• It's a flash drive so you could loose it.

• It's very expensive.

• It is susceptible to damage from bumps.

• It has no moving parts

Check all that True about a flash drive

• Cheap, inexpensive

• Better than a hard drive

• resistant to bumps and knocks

• Small, mobile, allows you to plug in in another computer

ROM Read only memory does all of the below except for one:

• Holds all critical instructions

• It is the working memory

• Allows device to load

• non-volitile

The difference between memory and storage is that memory clears when the computer is turned off and storage of files remains.

• True

• False

• Not an option

• Not an option