How to stop a computer compressing an image?

I've got a Nikon D3100, and i'm saving the image quality on "RAW quality, (the best on there) but whenever i import the image into my computer, it automatically compresses it to a JPEG Standard, is there any way to stop this?

You have to tell the photo program you want to save all the images as TIFF files. There's NO compression when saving images as TIFF files.

If you want the least JPEG compression, you will have to tell the program to save your processed RAW files as JPEG Fine

When you do a - file save as - you should be able to pick a wide variety of "save as - formats", such as Bitmaps, JPG's, TIFF's and even RAW again. In JPG there's often a % scale you can pick denoting how much compression is given, from 1% to a lot! If your using the camera's software to upload the camera's images into the computer your not getting as much flexibility as you could. I would use a card reader and up load via that to your folder of photo files. Here it is just a direct move or copy of files and none are compromised in any way what so ever. I would take the time to save the $$ and buy a decent Image Editing program made for digital images as well. Many good ones start around $80 US and can go to the Moon and back. Paint Shop Pro X3 is good and you can find used versions from 6 on up for pennies at used software houses and it has a LOT of power for the $$.
.
There are version of Adobe Photo Shop out as well, Adobe Photo Deluxe, LE, Adobe Photo Shop CS5, 4, 3.etc… As well as the full blown version - Adobe Photo Shop - it's self. Now, again, in the used area these are out there too so you can take your pick. Make sure they have their instruction books.
.
What I'm getting at is you will need a Image Editing Program with some ballz and quality to give you the quality I think your looking for. Most packaged software with cameras these days is "just enuf" to get the image from the camera to the computer, some dinking, and thats about it. Treating your memory card like a external drive, in a card reader, saves ware and tare on your camera and is usually 10x faster, plus being a drag n drop, the images are totally un-touched until you open them IN your Image Editing program and THEN do a re-save, in the format of your choice for the need you want.