An ideal way to start coding is with scripts that run in a web browser. Web languages are easy to learn. And any text editor can be used to create basic pages.
A key strength of HTML coding is its simplicity and immediacy. You can learn a handful of the most commonly used HTML tags in an hour or two. After saving your script as an '.html' file simply open it in a browser to examine your handiwork. Repeat this edit and review process as you experiment with different HTML tags.
There's masses of web development information and tutorials in magazines, books and online. A great way to learn is by studying the work of others. All browsers have a view source code menu option. This allows a sneaky look at the code behind any Internet-hosted web page.
Mozilla, the company behind the Firefox browser, have an excellent introduction to web coding at its WebMaker site. WebMaker's tools include Thimble (a page builder), Popcorn Maker (a video and audio editor) and X-Ray Goggles (which displays the hidden HTML code behind the page elements as the mouse cursor hovers over them).