You can do this easily using software.
Use your web browser (a software program) to access an online shopping site that sells RAM upgrades and purchase the appropriate items.
When they arrive at your house, install them in your computer.
You do that by buying more RAM sticks if your motherboard supports additional RAM. There is no software that increases RAM. ( It would be nice if that were possible though! )
You need to be more specific on what type of device you are asking about in reference to RAM
there is no way to do that, if your pc cant support 1gb better buy new one..this is 2018
Hit the gym
You cannot. Software does not affect the amount of RAM on a system. That is purely hardware. There is NO WAY to do this. At best, you could change the amount of VIRTUAL memory on your system but that does not change RAM, which is physical memory.
with software yo can't increase ram you have to buy a new 4 gb ram or instead of 2 gb ram in compuerts are are two ram slots are present where you can use two rams simultaneously.
you can say a hardware engineer
You must be using an older version of Windows if you have only 1 Gig of ram.
The only way that you can increase that memory with software is by increasing the virtual memory or paging file on your computer which uses up space on your hard disc and is painfully slow;
Regards, Bob UK.