determines how many tasks your PC can handle at a time
The RAM that is used for a laptop is not the same as the RAM that you would use in a desktop PC. The RAM that is used for a PC is much too big to be used in a laptop, so a laptop has to use a much smaller RAM card which is called SD-RAM.
I think it is time to buy a new PC with higher RAM.
More often it is the motherboard which determines the Memory which can be in a PC.
L2n cache
ram is temporary memory of pc,it is voltile memory.When we shut down our PC then all the data erase from ram. Types of ram: 1)SRAM 2)DRAM
Yes you can use. PC means DDR1 266mhz ram, PC 2700 means DDR1 333mhz ram. you should not use in combination of both PC2100 and PC2700 because due to Bus frequency mismatch some boards will not support.
If a PC has no RAM, the computer will not boot. So your answer is no files will run ... on a PC.
DDR2 Ram up to 4gb
Yes automotive GPS units use ram. Almost any product that has a cpu also has a ram. But because a GPS unit isn't a full blown pc, it won't have a very big ram.
increase your pc ram or clean the ram by opening cpu
no it will degrade your system
Generally Mac and PC types of RAM are incompatible, so your best bet would be in shopping for RAM advertised as compatible with your Apple computer.