notebook

During the seventeenth and eighteenth centuries notebooks were often made by hand at home by folding pieces of paper in half into gatherings that were then bound at a later date. The pages were blank and every notekeeper had to make ruled lines across the paper. Making and keeping notebooks was such an important information management technique that children learned how to do it in school. [1] Cooling [ edit ] Waste heat  from operation is difficult to remove in the compact internal space of a laptop. Early laptops used  heat sinks  placed directly on the components to be cooled, but when these hot components are deep inside the device, a large space-wasting air duct is needed to exhaust the heat. Modern laptops instead rely on  heat pipes  to rapidly move waste heat towards the edges of the device, to allow for a much smaller and compact fan and heat sink cooling system. Waste heat is usually exhausted away from the device operator towards the rear or ...