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So, when Xerox and its research and development unit, Palo Alto Research Center (PARC), began making its machines, Englebart decided to tilt the arrow at an angle of about 45 degrees. The angle made the mouse pointer easier to pick out against the pixelated background.
Why is my mouse cursor slanted?
Due to the low resolution of the screens back in 1981, drawing a 45 degree angle was simpler than drawing a straight line. Besides the fact that it was easier, a slanted arrow was more recognizable as well. Since the arrow is slanted, it creates a pop-out effect, making it easier to spot on the screen.
Why is the cursor diagonal?
If it were straight, it would take a nanosecond more to place the cursor on the desired object. Human mind is generally used to perceiving elements from left to the right, that is why the cursor is designed into the opposite direction, anticipating the intent of interaction with the element you are about to click on.
Why is my cursor not pointing correctly?
If you have an optical mouse (LED or laser) with erratic behavior, the optical eye may be blocked. Hair or fuzz can block the sensor on the bottom of the mouse, preventing the optical sensor from working correctly. Turn the mouse over and make sure there is no debris blocking the hole.
