Mostly everyone know that computer role is everywhere in our world. I think lenovo laptop is best company. I have a lenovo laptop this laptop is purchase my big brother and this laptop is purchase 30000/ idepead lenovo 6580. I use this laptop colleage days and iam aslo student of computer so this laptop is very useful for me. I use this laptop previous 3 years. my many work doing on laptop as in mouthshut.com, office related work and this laptop is service is very good and this laptop features and function is so much good and this laptop windows 8.1 is already installed. this is lucky for me.