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  2. ENIAC - Wikipedia

    en.wikipedia.org/wiki/ENIAC

    ENIAC ( / ˈɛniæk /; Electronic Numerical Integrator and Computer) [1] [2] was the first programmable, electronic, general-purpose digital computer, completed in 1945. [3] [4] Other computers had some of these features, but ENIAC was the first to have them all.

  3. E-commerce - Wikipedia

    en.wikipedia.org/wiki/E-commerce

    E-commerce (electronic commerce) is the activity of electronically buying or selling products on online services or over the Internet.E-commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems.

  4. Gerber format - Wikipedia

    en.wikipedia.org/wiki/Gerber_format

    The Gerber format is an open, ASCII, vector format for printed circuit board (PCB) designs. [1] It is the de facto standard used by PCB industry software to describe the printed circuit board images: copper layers, solder mask, legend, drill data, etc. [2] [3] [4] The standard file extension is .GBR or .gbr [1] though other extensions like .GB ...

  5. Polish alphabet - Wikipedia

    en.wikipedia.org/wiki/Polish_alphabet

    The Polish alphabet ( Polish: alfabet polski, abecadło) is the script of the Polish language, the basis for the Polish system of orthography. It is based on the Latin alphabet but includes certain letters with diacritics: the acute accent ( kreska; ć, ń, ó, ś, ź ); the overdot ( kropka; ż ); the tail or ogonek ( ą, ę ); and the stroke ...

  6. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    A low code-rate close to zero implies a strong code that uses many redundant bits to achieve a good performance, while a large code-rate close to 1 implies a weak code. The redundant bits that protect the information have to be transferred using the same communication resources that they are trying to protect.

  7. Insulated-gate bipolar transistor - Wikipedia

    en.wikipedia.org/wiki/Insulated-gate_bipolar...

    IGBT schematic symbol. An insulated-gate bipolar transistor ( IGBT) is a three-terminal power semiconductor device primarily forming an electronic switch. It was developed to combine high efficiency with fast switching. It consists of four alternating layers ( P–N–P–N) that are controlled by a metal–oxide–semiconductor (MOS) gate ...