The first integrated circuit masks were hand made, then optically reduced. The wafers were then processed much as they are today using these reduced masks.
Hand made masks were used well into the 1970s. All the early microprocessors were done with hand made masks. You can even download from Intel's website now masks and schematics, all hand drawn, for their original 4004.
i dont now
It is called a microprocessor because it is the single microchip integrated circuit processor of a microcomputer. The term minicomputer was already taken and referred to small computers whose processor was built of many different microchip integrated circuits. There was never anything called a "miniprocessor" in these computers, just as there was never anything called a "mainframe processor" in the big computers.Note: Some early microprocessors were not single microchips, but were instead a family of related microchips that could be interconnected in a variety of different ways (e.g. AMD 2900 family). This served two functions:it avoided the limits of the number of transistors that could be put on a single microchip with the technology available thenproviding greater design flexibility (e.g. the same microprocessor family could be used to build microcomputers having very different word lengths depending on the requirements: 16 bit, 32 bit, 48 bit, 64 bit, etc.)You do not see this anymore, all microprocessors now are single microchip integrated circuits.
Lever Pulley WedgeWheel and axle Inclined planeScrew And you now know know the six Simple Machines!!!
By the 1940s, the automobile and the telephone. Washing machines now had timers on them. There were now also electric dryers. People could choose between an electric stove or a gas stove.
5 Examples of Technology You Can Use Now Smartphones Automatic lights Activity and health monitoring Tablet computers Automated cabinets
How ships are built now a days...?
they have churches now built for them and dont have to build the church them self and they now get paid
France built it's first North American settlement in what is now Florida.
In 1912, Titanic was built for $7.5M which would be about $400M today.
Build Now was created in 2008.
china built a wall. It's now called the Great Wall of China
No. Why would we use nose prints when we now have microchips to locate our lost animals?
At first I bet bubble gum was made by hand, but now it is made by machines At first I bet bubble gum was made by hand, but now it is made by machines
there was a bishop who built it
Simple Machines allowed the builders of the Great Wall of China to build more quickly and efficiently. Machines such as levers and inclined planes allowed the amount of energy spent to do the work to be decreased. Other machines such as pulleys allowed objects to be transported up and down the wall with greater ease. Wedges were incorporated in the hammers that the Chinese used to pound the earth and all the materials of the Wall together.
The Chattanooga Choo Choo hotel was built in the mid ninteen hundreds around 1955. It was built to house only about 5 people but obviously grew to house about 50 people now.
put a worm on a rock and cover it with a leaf