Effect of Low credit hours/ long undergrad on grad school I am studying Computer Science as an undergrad and I have been doing a low number of credit hours per semester (less than 15, but still full time). Am I at a disadvantage when applying for grad school? 

By the time I graduate, I would have completed 5 years, when normally this is a 4 year degree. My GPA is relatively good, a 3.85 on a 4.00 scale, but I am afraid it will be attributed to the low workload.
I don't think taking a little bit of extra time is going to make a huge difference in your case is viewed by admissions staff, so long as you've been putting the extra time to good use. Have you used the extra time to do research? Have you done summer internships or research programs? 

If all you've done is lengthen your undergraduate program with nothing but good coursework to show for it, then extra time may hurt you.