The DO-UNDO-REDO Protocol Defines Three Types of Operations

question 42

Essay

The DO-UNDO-REDO protocol defines three types of operations.What are they?

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Definitions:

Horizontal

Describes something laying in a flat position, parallel to the ground.

Aboveground Stem

The portion of a plant's stem that is visible above the surface of the soil, supporting leaves and flowers.

Horizontal

Referring to the orientation parallel to the ground or to the bottom and top edges of most two-dimensional objects.

Underground Stem

Plant structures that grow below the soil surface, serving as storage organs and helping in asexual reproduction; examples include rhizomes and tubers.