not sure where to start

i have a work book open with information in columns b-j and rows 1-ongoing

i left colum a blank. what i need to happen is that , when data is entered into any of the cells in column A, the row associated with where the information was enetred, needs to be highlight yellow. I know you can simply manually do this however would like the colour to autmoatically highlight the ROW when data is enetered in column A.
for example if i entered anything into cell A1, the entire row 1 will highlight a color
Thanks in advance, im sure this is something very basic too

thank you, i've been trying using that and modifying but its not giving me exatcly what i need. let me give specifics

i have a chargt with hardware units and all their data each row from b-j has this info

column a is left blank because we need to enter a phone numbers in column a associate with that row so what i need is when i enter a random phone number into a1 i need the entire row 1 to highlight yellow.

when i enter a pheon number in a2 i need all of row 2 to highlight etc...

thank you very much,