'' All computers are pretty much equal once connected to the internet; the only difference will be the speed of the connection WHICH is dependent on your Internet Service Provider and your own modem''. ''They include using a range of services to communicate and share information and things quickly and inexpensively with tens of millions of people, BOTH young and old and from diverse cultures around the world'' cho mk hỏi là tại sao lại dùng WHICH VÀ BOTH trong 2 câu này