slider

As a noun slider is

one who slides.

As nouns the difference between images and slider

is that images is while slider is one who slides.

As nouns the difference between slider and yakker

is that slider is one who slides while yakker is (slang) one who yaks; a chatterbox or motormouth.

Trackbar is a synonym of slider.

In graphical user interface terms the difference between slider and trackbar

is that slider is a widget allowing the user to select a value or position on a sliding scale while trackbar is a widget allowing the user to select a value on a sliding scale.

As nouns the difference between slider and trackbar

is that slider is Agent noun of slide: one who slides while trackbar is a widget allowing the user to select a value on a sliding scale.