I have recently become an entrepreneur. I need to buy a laptop for regular office use which chiefly involves extensive browsing on the internet (multiple tabs in chrome) alongwith pdf (acrobat reader), ms word and ms excel. I also sometimes use powerpoint alongwith chrome, adobe acrobat and images. I need a laptop (and not a desktop) as I have to visit clients occasionally. My daily use is around 10-12 hours. I don't play games or do programming or video editing. Kindly advise which processor and other configuration would be suitable and also have a decent life (non obsolescence) as my work profile and computing needs are unlikely to change much in coming years. Laptop prices in my country (india) are twice usa prices but it is hard to get a laptop with an old configuration (i3, later generation) below 550 us$ which sets a high floor as well. Your experienced advice would be helpful to me.