Test your skills
What do you call the part of a Windows program that contains clickable buttons represented by symbols or icons?
There are many icons on windows. All of them are given below which matches with your description
Task bar- The grey strip that runs along the bottom of your screen contains several useful items. At the far left end is the Start menu button. This task bar is mostly used bar where we click and do our job.
Sound Control - The yellow speaker is the Sound icon.
The Start Menu - The image below is what you would see if you put your mouse pointer over the Start button and gently click one time with the left mouse button. This image is clickable. Put the tip of your mouse pointer on an item and gently click one time with the left mouse button.