Contains the full lesson along with a supporting toolkit, including teachers’ notes.
What Will Be The Shape Of Computers To Come?
Daily we have ever greater computing power in our desktop and laptop computers. There has been a corresponding evolution in software applications such as word processing and desktop publishing. Now, as a result of the increasing availability of fastinternet access, we are witnessing a new development in which data files and computer applications are stored remotely. For example, using only an Internet browser the user can write text or record and edit music. The Internet facilitates:
Each of these terms reflects a method of sharing a resource between users as an alternative to having a dedicated resource of their own. In this lesson we will look at what is meant by each of these and will examine the issues associated with the cloud computing.
How Did We Get Here?
The last century saw amazing advances in computers particularly since the invention of the silicon transistor (1954) Using smalltransistors instead of large vacuum tubes the basic electronic building blocks of computers could be made much smaller. In 1959 the first integrated circuits were made and they soon began to replace some processing elements. By the early 1970s it was possible to make a central processing unit (CPU) in a singleintegrated circuit.
In the decades since then computing power has increased dramatically. Parallel developments took place in telecommunications; fibre optics and data compressionincreased the speed and efficiency of data transfer.