So program the RAM higher. Someone said his 8gb ram laptop became a 20gb ram laptop
Well… You can just add memory. Say: buy additional bars and install.
But first in the manual read which RAM and how much RAM the laptop can handle.
No, it does not work because more memory actually needs "more material" (more transistors).
What you can do is increase the swap space. This is memory on the hard disk (or SSD) that the operating system can use as extra memory. Of course, this will depend on your "usable hard drive capacity" (for data).
This paging memory (also referred to as a "page file") is used to store memory pages that are rarely needed there and results in programs that require more memory than are physically present in RAM to continue to run and not crash. However, the access to the corresponding memory pages is then much slower than those which are actually directly in the main memory, since the corresponding media are much slower than the main memory. This means that if you use more memory than physically available, your programs will continue to run, but you will notice (significant) performance losses.
The physical RAM you can't increase without hardware and not higher programming. It is possible to compress the data, which leads to losses in the processing speed. The same effect has an enlargement of the usable memory by outsourcing to the hard disk. For SSDs, the loss is lower.
No, RAM is hardware, consists of physical memory chips.
There were some ways to make the memory seem larger by compressing the data in it, which at a time when memory was very expensive, also allowed you to handle larger files with relatively little physical memory (at that time I had 1MB ( not GB!) RAM 1000 Mark (in the purchasing power in about 1 Mark at that time almost 2 euro today) must spend) - that went then however immensely to the load of the computing power, since here all data before they had landed in the working memory only by a Komprimierungsprogramm
Nope. You can just take hard disk space ("SWAP") instead, but that is very much much slower - practically useless (in comparison)