what is a 74LS11 IC AND GATE?

Answer 1

74xx series are basically multiple logic gates crammed into a single IC, plus power and ground.

7411 is a 3 x 3-input AND gate. All three must be "1" to get output of 1. Three of these on a single chip.

Ever do logic design?

Answer 2

for a clearer answer a clearer question is needed

don't tell me its electronic !
ok maybe i say maybe cauz you dont explane anything

maybe a semiconductor