A command-line interface is a text-based user interface (UI) used to run programs, manage computer files and interact with the computer.

Command-line interfaces are also called command-line user interfaces, console user interfaces and character user interfaces.

International Business Machines Corporation (IBM) is an American company began in 1911, founded in Endicott, New York by trust businessman Charles Ranlett Flint, as the Computing-Tabulating-Recording Company (CTR) and was renamed "International Business Machines" in 1924.

IBM is incorporated in New York

A computer hard disk drive  is a non-volatile data storage device.

Non-volatile refers to storage devices that maintain stored data when turned off.

All computers need a storage device, and HDDs are just one example of a type of storage device.

The company operates the microblogging and social networking service Twitter.

Founded: March 21, 2006

Headquarters: San Francisco, California, United States

Blaise Pascal was a French mathematician, physicist, inventor, philosopher, writer, and Catholic theologian.

The basic operations performed by a computer are arithmetic operations, logical operations and storage and relative functions.

Basically computer does 5 basic operations that are input, output, process,storing and controlling.

Software is a set of computer programs and associated documentation and data.

This is in contrast to hardware, from which the system is built and which actually performs the work

The CPU is the brain of a computer, containing all the circuitry needed to process input, store data, and output results.

The CPU is constantly following instructions of computer programs that tell it which data to process and how to process it.

On  keyboard press CTRL and R at the same time to refresh the webpage.

You can also click the F5 button to reload the webpage or your desktop

Data Source is a name given to the connection set up to a database from a server.