Size may refer to any of the following:
1. The size is the overall dimension of a physical or virtual object. When measuring a 2D virtual object such picture, the width (x-axis) and height (y-axis) determine its size and are usually measured in pixels. Virtual object can also be resized to decrease or increase the overall size of the object. When determine the size of a physical object the width, height, and depth (z-axis) are all used to determine its size and are usually measured in inches.
As computers continue to advance, their components, and the computers themselves, are becoming smaller in size. For example, the ENIAC computer occupied 1,800 square feet, and today a computer several hundred times more powerful can fit in your pocket.