Friday, April 15, 2011

Question of the Day: What is an event? How can events be signaled? Describe IN YOUR OWN WORDS how sprites use events to communicate. How are events like Social Networking?

An event is something that sends a message to one thread to another. Events can be signaled by putting a when command on top of it. So  the scratch sends a message to that command on when to start or to do a certain task. Events are similar to social networking because we get the chance to send messages to one another telling each other what to do or whats going on.  

Thursday, April 14, 2011

Question of the Day: What is a thread? What happens when you use multiple threads? What label begins a thread in Scratch? Why do you think you should use separate threads?

 a thread is like a mini-program within a program that can execute at the same time as other threads.A program with multiple threads, then, can do multiple things at once. The when command starts a thread in scratch. You should separate it when you want you sprite to do something at one time.