The difference between technology and technological change is that

a$.$ technology refers to the processes used by a firm to transform inputs into output while technological change is a change in a firm's ability to produce a given level of output with a given quantity of inputs.

b$.$ technology is carried out by firms producing physical goods but technological change is an intellectual exercise into seeking ways to improve production.

C$.$ technology is product$-$centered, that is$,$ developing new products with our limited resources while technological change is process$-$centered in that it focuses on developing new production techniques.

d$.$ technology involves the use of capital equipment while technological change requires the use of brain power.