Who among the following is known for originating concept of programmable computer

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
A liquid-crystal display  is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly,instead using a backlight or reflector to produce images in color or monochrome.

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
Encryption is a means of securing digital data using one or more mathematical techniques, along with a password or "key" used to decrypt the information.

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.