Smoke detector

src: cdn.funkidslive.com A smoke detector is a device that senses smoke, typically as an indicator of fire. Commercial security devices iss...

Scientific modelling

src: scienceornot.files.wordpress.com Scientific modelling is a scientific activity, the aim of which is to make a particular part or featu...

Backup

src: www.yuganxsa.com In information technology, a backup , or the process of backing up, refers to the copying and archiving of computer da...