can a person attend college without a hs diploma?

For someone to be able to enter College, one should have a High School Diploma. It is never possible to bypass High School.

There are several pathways here to enter colleges. The most common one would be for high school leavers. But there are also ways for those who do not have a HS diploma. They can complete certain courses prior to entering University in TaFE (Technical and Further Education) schools. I believe completing GED in the States will be considered equivalent of having a HS diploma.

As far as I think diploma is doing a degree. You don't need to do diploma to attend college. In my state, college starts after studying from kindergarten, then 1st grade,2nd grade, till 12th grade.In my neighboring state it's college life is after 10th grade. I don't know what is called college at your place?

For me, in the US, I didn't have to get a diploma to start college, but I did have to complete my GED. colleges are very picky now and really require that you have something showing that you've completed a certain level of education to their satisfaction. The GED qualifier is really just a piece of paper for me though, because it really means nothing to me; I know that I learned more than enough at school and the circumstances of my not finishing were beyond my control.

It is possible, unless you had taken an exam in educational facilities. You just need to pass the exams to jump into college. I've known a close friend who did this without finishing her secondary level. You can try to enquire in your previous school about this.