(Question number 2 )

1. What is an input device? Writte down which input devices you know and post an image of each one.

Input device is a peripheral (Computer piece ) used to provide data and control signals to a Computer or any information processing system

for Example: WebCamera


2.What is an output device? Writte down which output devices you know and post and image of each one.
Output device is any piece of computer hardware used to communicate the results of data processing to the outside.

For Example: Screen, speakers, printer...

3. What is the difference between RAM and ROM?
Abaut the Ram Memory: Random access memory, computer memory that can be read from and written to in arbitrary sequenceAnd it is Erased every time you turn off the computer. I'ts a very important parameter because this will be how quick is your computer to use some specific aplications. Read only memory :class of storage media used in computers and other electronic devices. This tells the computer how to load the operating system.
4. What is a backing storage? Which types of backing storage do you know?
In information technology, a backup or the process of backing up refer to making copies of data so that these additional copies may be used to restore the original after a data loss event.

*Examples:
CD DVD Readers, Blu ryde, Flash compact Cards, ( SD, XD, MSstik...), UsSB Flash, Hard Driverd ( H-DD)...