Definition:
Vector graphics is the use of polygons to represent images in computer graphics. Vector graphics are based on vectors, which lead through locations called control points or nodes.
SVG: Scalable Vector Graphics
How to create svg file?
SVG files can be created through Adobe Illustrator. You can use Adobe Illustrator to open svg files.
Some other Adobe programs that support svg files. The easiest and quickest way to open an svg file to view with a modern web browser like chrome, firefox, edge, or internet explorer.
Open Adobe C5 Photoshop and create a sample image with an extension of jpeg.
Figure: sample image file
Figure: JPEG file
Now open jpeg file in photoshop
Figure: Select magic wand tool
Figure: Select inside part of the image
Figure: Select move tool
Now copy the object and Open Inkscape and paste it.
Figure: Copy image object to inkscape
Figure: Trace Bitmap
Figure: Update the Trace Bitmap
Figure: Drag the object from the image
Figure: Vector image is ready
Figure: Save the vector image
Now open the image file using browser and check
Figure: You can see the image and zoom it
No image distortion will be seen. Edges and curves are sharpen with the points.
Differences:
Figure: Jpeg image
Figure: Vector Image