Desktop components are less expensive in general, so instead of buying a $500 laptop with a competent Intel Atom processor, you can buy a $500 desktop with a powerful Intel Core i5 desktop CPU in it. You can get desktops with screens that are already built in, or they can be connected externally to a monitor.
The period when winter starts differ in the Northern and Southern Hemisphere. In the Northern Hemisphere it is from December 20 up to March 21. In the Southern Hemisphere this would be around June 20 and culminates on September 22. The beginning and end dates may vary a day or two.
A snow-covered park in Pittsburgh, Pennsylvania, during winter. Winter is the coldest season of the year in polar and temperate climates, between autumn and spring. Winter is caused by the axis of the Earth in that hemisphere being oriented away from the Sun. Different cultures define different dates as the start of winter, and some use a definition based on weather. When it is winter in the Northern Hemisphere, it is summer in the Southern Hemisphere, and vice versa.