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91History of general purpose CPUs — The history of general purpose CPUs is a continuation of the earlier history of computing hardware. 1950s: early designs Each of the computer designs of the early 1950s was a unique design; there were no upward compatible machines or computer… …
92Mathematics of radio engineering — A complex valued function. The mathematics of radio engineering is a pleasant and very useful subject. This article is an attempt to provide a reasonably comprehensive summary of this almost limitless topic. While the ideas have historically… …
93Photonic metamaterial — Electromagnetism Electricity · …
94Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
95Canonical form (Boolean algebra) — In Boolean algebra, any Boolean function can be expressed in a canonical form using the dual concepts of minterms and maxterms. Minterms are called products because they are the logical AND of a set of variables, and maxterms are called sums… …
96Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
97Delta-sigma modulation — Delta sigma (ΔΣ; or sigma delta, ΣΔ) modulation is a method for encoding high resolution or analog signals into lower resolution digital signals. The conversion is done using error feedback, where the difference between the two signals is… …
98Packet switched network — A Packet Switched Network, or PSN, refers to the packet switched networks that existed before the Internet. The history of such networks can be divided into three eras:early networks before the introduction of X.25 and OSI,the X.25 era when many… …
99H-bridge — An H bridge is an electronic circuit which enables DC electric motors to be run forwards or backwards. These circuits are often used in robotics. H bridges are available as integrated circuits, or can be built from discrete components.The term H… …
100RF MEMS — The MEMS acronym stands for Micro Electromechanical System and is used to refer to components of which sub millimeter sized parts need to move for the components to have electronic functionality. RF MEMS passives, such as capacitors, inductors,… …
