On a systems flowchart, the online manual keeping of input data is identified by using the

The correct option is "manual operation symbols".

In a systems flowchart, the manual operation symbol is used to represent activities that are performed by a person rather than a machine or automated system.

When input data is kept manually in an online system, it indicates human involvement in recording or handling the data. This is exactly represented by the manual operation symbol in flowcharting standards.

Why not the others?

"Online storage symbol" represents data stored in an online medium, not the manual act of keeping data.

"Online keyboard symbol" is used for data entry through a terminal or keyboard, not for manual handling of records.

"Keeping operation symbols" is not a recognized standard in system flowcharting.

"None of the above" is incorrect because the correct symbol exists and is manual operation symbols.

Therefore, the correct answer is manual operation symbols.