Christ Church?! You've just made yourself an enemy. Your lax team can only win when they play fucking dirty!

You are probably right. Christ Church wasn't the best.... at anything. That's long behind me now though. Would have prefered to goto Kent Uni mainly because it was a better Uni but I didn't do well enough at A-Levels for that.

alrite

but i still want to know where i stand among other student and will i understand anything taught out there

i have done maths  and i have passed with good numbers,but i don't know what other students will already know and what the universities expect from there student

just for an idea,i don't know shit about

algorithms

no prior coding knowledge

maths - trigo and calculus(but i don't really know or remember much from the time i studied them)

as i took commerce and economics,i don't know how capable i should be and how capable they expect me to be

and i want to also know on what basis the universities select people,they have said SATs but not anything else

i will nail SATs but i want to know what else i should learn or improve before my application and my admission

I would still recommend starting at a community college in the same city as the particular University you want to attend. To get into one all you need to do is register and take the entrance exams to determine where you stand in math and other categories.

This allows you many benefits over going straight to a University:

1. HUGE reduction in costs.
When you first come over you'll have to pay "out of state" tuition costs with are 2 or more times more than what a resident of that state has to pay. However, a community college costs a small fraction of what a University charges. So, you have a major net savings by going to the community college for the first couple of years and by the time you transfer to the University you'll have residency and be able to get the lower rates.

2. Better education.
General education classes at Universities will be in stadiums and have hundreds of students. You will have almost no one on one discussion with the teacher as they simply don't have the time. At best you may be able to schedule time with them out of class or with their aides. Community college classes are far smaller (20-30 kids) and have a far more direct teaching approach. This means that in areas where you need the extra help you can easily obtain that help during class times. One last part is language barrier. I know at my University the entire Math depart has English as a 3rd language. Getting taught complex high level calculus theories by someone who has a huge accent and doesn't even know the English word for certain symbols makes it far harder to learn. Community colleges won't have this issue.

3. Smaller campuses
Self explanatory.

6. No SATs and easier admittance to University
Its far easier to go to a University after a community college than from anything else. The University has direct proof from the community college on what you know and how well you'll do. Therefore the admittance is a simpler and faster process.

5. No loss in any other area.
This means you don't lose out on anything by going to the community college first. All of your classes transfer over and its a great stepping stone between lower education and higher. In my city, you even get a University ID card while attending the community college so you can still take advantage of all the other University benefits.

A note about community colleges-- not all colleges accept community college credits.

If that is your plan, make sure the college you eventually want to attend will accept those classes that you took at the community college.

Also, I wouldn't worry about being on level with other students in your first few years.  You're there to learn just like everybody else and you'll start out in the same zero prior knowledge classes as everyone else.  By the end of those freshman and sophomore classes, you'll be on equal playing fields.

but did you know anything about computer programmes or anything related to it technically before going to college?

I did Computer Science and Math and knew very little programming.  The only programming I had ever done had been in Basic and Pascal, never touched C or C .  Like I said, every technical degree will start with a zero prior knowledge class that most everyone will take.

Remember, you go to college to learn, not take classes about what you already know.

This is why I said go to the one in the same city as the university you want to go to. They'll always have a transfer program.

No. I had zero experience in programming when I started.

and algorithms?

and were you very good at maths or just like me,study for exams and then forget most of it

i pick up very fast but i don't consistantly do maths and other stuff