category: Help *Q:* I want to program! How do I get started? *A:* Two books you may find helpful are: "First Steps in Programming RISC OS Computers":http://www.riscos.com/support/users/firstprog/index.htm and "A Beginner's Guide to Wimp Programming":http://www.riscos.com/support/developers/wimpprog/index.htm If you have the RISC OS Pi distribution, you'll find PDF copies of both books in $.Documents.Books. *Q:* Does RISC OS have an equivalent of a script file? *A:* Yes. They are known as 'obey files'. Here is [[Introduction to Obey|an introduction]] to using them. *Q:* Can I access the GPIO pins? *A:* Yes, GPIO pins can be accessed using many languages such as BASIC, assembler and C. Here is [[GPIO for Raspberry Pi|a guide]] to get you started using BASIC on a Raspberry Pi. *Q:* Where are the "published checksums" mentioned in the help file of !UnTarBZ2? *A:* Each download on the "Downloads" page has a checksum immediately below the download link. *Q:* Why does this wiki not have all of the Programmer's Reference Manual online? *A:* The wiki pages are meant to be read alongside the RISC OS 3 PRM. If you have the RISC OS Pi distribution, you'll find PDF copies of the RISC OS 3 PRM in $.Documents.Books.PRMs - failing that, the PRM can be obtained as part of the "Desktop Development Environment":/content/sales/dde software, or is available online "here.":http://www.riscos.com/support/developers/prm_index/prmindex.html