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Exercise 4



Read the following paragraph and as you read it, complete the table on page 62 and underline the prefixes.

Computers may have a short history but prior to their development, there were many other ways of doing calculations. These calculations were done using devices that are still used today; the slide rule being a perfect example, not to mention the ten fingers of the hands. These machines, unlike computers, are non-electronic and were replaced by faster calculating devices. It wasn't until the mid-1940s that the first digital computer was built. The post-war industrial boom saw the development of computers take shape. By the 1960s, computers were faster than their predecessors and semiconductors had replaced vacuum tubes only to be replaced in a few years by tiny integrated circuit boards. Due to microminiaturization,in the 1970s, these circuits were etched onto wafer-thin rectangular pieces of silicon. This integrated circuitry is known as a chip and is used in microcomputers of all kinds. It has been forecasted, by the end of this decade, exceptionally faster and smaller computers will replace those in use today.


 


multi- deci- sub- inter-
semi- mono- mega- auto-
mini- de- mter- prim-

 


 


Prefixes
NEGATIVE AND POSITIVE SIZE LOCATION TIME AND ORDER NUMBER
unlike     post-war  



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