Just finished going through C in easy steps and reading C in Jensens and now I am going on to C++ and as I am a slow learner and I need to understand before I can learn or do things, it suddenly hit me while reading and doing Schildt C++ from the ground up I didn't understand what the largest or even the smallest number was capable of or in how it worked. In 32 bit the largest number is 4 billion 294 million 967 thousand 295. I did some programming years ago in a data base environment and the questions of numbers didn't come up but in my last job in accounting I found that many peoples programs could not do the millions quantity that was required when selling fuel in litres to large tugs and we didn't do large ships so I do not know how that was handled but does this 4 billion refer to the numbers in quantity or the amount of numbers I can put on a line or what? Something in my head does not compute so any help would be appreciated. I could not find a thread here nor an answer in any of the books I have got.