Types of Computers

Points and Lines
In geometry, a point is a location represented by a dot. A point does not have any length, width, shape or size, it only has a position. When two distinct points are connected they form a line. 
What is a Point and a Line?
The concept of points and lines is important to understand geometry figures. With the help of points, we can label and identify the geometry figures and with the help of lines, we can draw the figures.
Point
A point is defined as a location in any space and is represented by a dot (.). It does not have any length, height, shape, or size. It marks the beginning to draw any figure or shape and is labeled with capital letters.
Line
A series of points connected by a straight path is defined as a line. A line is usually defined by two points. It can be marked with a single letter in the lower case or by two capital letters. A line has no thickness and can extend indefinitely in both directions. The length of a line is undefined and it can have infinite numbers of points. Observe the following figure to know the difference between a point and a line.

Types of Points and Lines
There are different types of points in geometry. Let us discuss them to identify them easily.
Collinear Points and Non-Collinear Points
If three or more points lie on a single straight line then the points are called collinear points. If the group of points do not lie on the same line then those points are called non-collinear points.
Coplanar Points and Non-Coplanar Points
If a group of points lie on the same plane then they are said to be coplanar points. A set of points that do not lie on the same plane are non-coplanar points.
Observe the following figure which shows the different types of points.

Types of Lines
Just like the different types of points, there are different types of lines which can be distinguished easily on the basis of their unique properties.

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