Usually all businesses are interested in finding out which products are selling well, which products their competitor is selling
It appears that computers are being hacked to steal sales data.
So after a product is sold, the shop owner, especially for a smaller shop, the shop owner or staff, is writing the sales details in the notebook, though in some cases, they have multiple computers, laptops
For smaller shops, a notebook costing Rs 20-50 is more convenient and reliable for keeping sales records compared to a laptop or computer costing at least Rs 20000 for a reliable computer.
