Technology is about meeting human needs through the creative process of designing and making.
Technology capability is acquired through the two profile components of design and technology and information technology. If students are to fully develop this capability, technology requires an overt input from five distinct subject areas: art and design, business studies, craft design and technology (CDT), home economics and information technology. It is essential that these subjects form a collegiate working relationship to plan, organise and deliver a technology curriculum unified by the design process. In this way, we can deliver technology capability in an effective manner as well as capitalise upon the breadth of professional expertise present within schools.
Technology
Thursday, 6 October 2011
Wednesday, 5 October 2011
Programs
In practical terms, a computer program may be just a few instructions or extend to many millions of instructions, as do the programs for word processors and web browsers for example. A typical modern computer can execute billions of instructions per second (gigaflops) and rarely makes a mistake over many years of operation. Large computer programs consisting of several million instructions may take teams of programmers years to write, and due to the complexity of the task almost certainly contain errors.
Semiconductors and microprocessors
Nearly all modern computers
Beginning in the 1950s, Soviet scientists Sergei Sobolev and Nikolay Brusentsov conducted research on ternary computers, devices that operated on a base three numbering system of −1, 0, and 1 rather than the conventional binary numbering system upon which most computers are based. They designed the Setun, a functional ternary computer, at Moscow State University. The device was put into limited production in the Soviet Union, but supplanted by the more common binary architecture.
Stored-program architecture
First general-purpose computers
The Most Famous Image in the Early History of Computing[20]
This portrait of Jacquard was woven in silk on a Jacquard loom and required 24,000 punched cards to create (1839). It was only produced to order. Charles Babbage owned one of these portraits ; it inspired him in using perforated cards in his analytical engine[21]
It was the fusion of automatic calculation with programmability that produced the first recognizable computers. In 1837, Charles Babbage was the first to conceptualize and design a fully programmable mechanical computer, his analytical engine.[22] Limited finances and Babbage's inability to resist tinkering with the design meant that the device was never completed ; nevertheless his son, Henry Babbage, completed a simplified version of the analytical engine's computing unit (the mill) in 1888. He gave a successful demonstration of its use in computing tables in 1906. This machine was given to the Science museum in South Kensington in 1910.
The mechanical calculator
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