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an attempt to extend the brilliant accessibility of Scratch to somewhat older users-in particular, non-CS-major computer science students-without becoming inaccessible to its original audience. BYOB 3 adds first class lists and procedures to BYOB's original contribution of custom blocks and recursion.

CPU block diagram

Welcome to Blocky.io, the home page for the Blocky programming language. Blocky is a visual programming system written in Common Lisp designed for multimedia authoring and general user programming. In addition to borrowing ideas from GNU Emacs, the language design is heavily influenced by existing visual programming research projects such as PureData, Squeak, Self Morphic, MIT Scratch, Berkeley's Build Your Own Blocks, and more recently Jens Moenig's Smalltalk Elements.

The Iranian government, more than almost any other, censors what citizens can read online, using elaborate technology to block millions of Web sites offering news, commentary, videos, music and, until recently, Facebook and YouTube. Search for "women" in Persian and you're told, "Dear Subscriber, access to this site is not possible."

If you don't take steps to secure your wireless network, anyone within range of your router can easily connect to your network. With the latest high performance equipment, your Wi-Fi signal could reach clear down the block. In fact, a hacker could intercept your Wi-Fi signal as far as ten miles away, using a Wi-Fi antenna created with a Pringles can.