It is the most popular smartphone operating system.

 It is a Linux based OS that comes with everything that you are looking for in an operating system. It is perfect for organizations, schools, and home use. It is free to download, use and share.

It is Linux based system which  is reliable, user-friendly and makes for a powerful operating system for any laptop and desktop computer.It is for casual users and caters to students, hobbyists, and professionals working in corporate environments.

This OS has been the staple of almost all Apple devices as we can remember. It has evolved with time to include the features that first and foremost define innovation.

It is a free UNIX based open-source software. It is compatible with a variety of platforms and mainly focuses on features such as speed, and stability. The most fascinating part about this software is its origin. It was built in the University of California by a large community.

It is a UNIX based operating system which was originally developed by Sun Microsystems in the mid-’90s. It is known for its scalability and several other features that made it possible such as Dtrace, ZFS and Time Slider.

It is another Linux-kernel based operating software that is designed by Google. As it is derived from the free chromium OS, it uses the Google Chrome web browser as its principal user interface. This OS primarily supports web applications

It is the most popular tablet operating system.

It is the main “brain” or “heart” of a computer system. It performs all of the instructions and calculations that are needed and manages the flow of information through a computer.

The main circuit board of a computer contains all the circuits and components that run the computer.

It is the computer's working storage space that holds data, instructions for processing and processed data (information) waiting to be sent to secondary storage.

Installed in the back corner of the PC case, next to the motherboard. It converts 120vac (standard house power) into DC voltages that are used by other components in the PC.

It is used as permanent storage for data.

It is a storage device that uses lasers to read data on the optical media.