the pattern for DELL interview is quit simple. they only focus more on your stability. they ask same questions again and again to check ur stability.
1st round is simple introduction round where they check ur communication skills.
2nd round written test.one is of English and other test has 10 ques of computer hardware. those ques are very simple.
3rd round is one on one first HR session. they will ask u WHY U WANNA JOIN DELL? and they will ask the same ques in diffways. abt family and interets.
4th round is telephonic interview. they check ur voice quality and ask questions like. gimme 5 reasons why should DELL take u?? gimme 2 reasons why can I reject u?? u have to be confident and firm tht DELL is only company u wanna join.
5th round is operations round. they ask basic computer terminology. even if u dont know technically u can show confidence tht DELL training will help in technical.
6th round is typing round. they make u type a document and just check how many letters u can type in a min.
7th round is one on one second HR round where u r offered ur offer letters.
whole process is very simple u just need to be confident and firm. i hope this will help u.