On the desktop or in the start menu, right click My Computer and then Properties. The RAM is listed there. It may take a second to show up. I'm not sure what you mean by ROM, but if you mean hard disk space (I'm assuming), left click on My Computer and right click the C: drive and click properties and it should show the total amount under Total Size.
If I was to purchase a computer that is a average desktop computer how much RAM and Rom should I have?
RAM
The computer is pulling from the hard drive information and is putting into RAM by using software that is burned into the ROM.
Ram Rom PROM
ROM isn't erased when you turn the power off, whereas RAM is.
ROM
D-Ram. It's a car, smartass.
When purchasing a computer, you need only be concerned with the RAM. All computers have ROM, but for the most part, the type or amount of it will make no impact on any aspect of the computer's operation. Since no applications you run are going to rely on ROM for storage, that leaves only RAM.
ROM is burned with a ROM/PROM burner (small computer with pin outs for a lot of IC's) - RAM is filled by the motherboard/memory controller on a mainboard.
ROM is memory the computer will remember. RAM is memory the computer will loss when you turn off the computer.
Is to enable the computer to perform faster
RAM is an acronym for Random Access Memory; ROM is an acronym for Read Only Memory. Both RAM and ROM are random access; that is, each cell in memory is directly accessible. The cells in RAM can be both read from and written to. The cells in ROM can only be read from. The bit pattern in ROM is determined at the time of manufacture or burned when the computer is assembled. Once a ROM has been burned (written), it cannot be changed. Another major difference is that RAM is volatile and ROM is not. This means that RAM does not maintain its bit patterns when the power is turned off, but ROM does.