Explanation

Charles Babbage was a mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.

Father of computer 

Born: December 26, 1791, London, United Kingdom

Explanation

An operating system is system software that manages computer hardware, software resources, and provides common services for computer programs. 

Explanation

Operating system is software that is required in order to run application programs and utilities.

Explanation

Yahoo Inc. has announced that the company has stopped providing service in mainland China with effect from November 01, 2021, due to the increasingly challenging business and legal environment in the country.

With this Yahoo has ended its 22-year presence in the Chinese market.

Explanation

There is no option to set page border in Excel.

Explanation

Explanation

Mark the entries

Select the text you'd like to use as an index entry, or just click where you want to insert the entry.

On the References tab, in the Index group, click Mark Entry.

You can edit the text in the Mark Index Entry dialog box. 

Click Mark to mark the index entry.

Explanation

A plotter is a machine that produces vector graphics drawings.

Plotters draw lines on paper using a pen, or in some applications, use a knife to cut a material like vinyl or leather.

Explanation

Mouse Pointer with anchor at the tip cell pointer indicate that you can move the content to other cell.

Explanation

Small thin plus icon MS Excel solution image cell pointer indicates that you can fill series.