what tools come with risc os/can be bought for risc os?
how much are they?
and where can you find books teaching you how to use them?
thanks in advance
Assuming you're coming from a Windows background, programming under RISC OS is probably quite different from what you are used to.
The principle source of information regarding RISC OS is the PRM's (Programmers Reference Manuals) which list all the system API's and then some. These can be bought in both printed and electronic format on CD. See your local dealer (http://dmoz.org/Computers/Systems/RISC_OS/Dealers/
) for information on pricing and availability.
The tools that "come with" RISC OS depend on what the dealer wishes to include. It also depends on what your choice of language is. You won't find "Visual" languages like "Visual C/C++" and "Visual Basic" under RISC OS. These are strictly MS only. Java is rather limited ATM (or rather the available JVM is. Compiler wise there are no problems). C/C++ has strong support along with languages such as Perl, Python, Smalltalk and compilers exist for older languages such as Fortran etc.
Commercial C/C++ compiler suites exist, the latest being the 32bit offering from Castle for £99 ATM though this is a limited time offer. There are also various free compilers such as GCC and Jikes.