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  2. Boundaries between the continents - Wikipedia

    en.wikipedia.org/wiki/Boundaries_between_the...

    The continental boundaries are considered to be within the very narrow land connections joining the continents. The remaining boundaries concern the association of islands and archipelagos with specific continents, notably: the delineation between Africa, Asia, and Europe in the Mediterranean Sea; the delineation between Asia and Europe in the ...

  3. Punched card - Wikipedia

    en.wikipedia.org/wiki/Punched_card

    A 12-row/80-column IBM punched card from the mid-twentieth century. A punched card (also punch card[1] or punched-card[2]) is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines. Punched cards were widely used in the 20th century, where unit ...

  4. Wikipedia:Blank maps - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Blank_maps

    These are azimuthal orthographic projections of the Earth from four sides plus the poles. 726x726 pixels, aliased. XCFs have separate layers for water, land, coastlines, political borders, political borders over water (not shown in PNGs), and latitude & longitude gridlines (not shown in PNGs). Image:Blankmap-ao-000 -africa europe.png XCF.

  5. Computer programming in the punched card era - Wikipedia

    en.wikipedia.org/wiki/Computer_programming_in...

    Punched cards. A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had been encoded by punching ...

  6. Punched card input/output - Wikipedia

    en.wikipedia.org/wiki/Punched_card_input/output

    A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with computer card punches and ...

  7. Eurasia - Wikipedia

    en.wikipedia.org/wiki/Eurasia

    Eurasia (/ jʊəˈreɪʒə / yoor-AY-zhə, also UK: /- ʃə / -⁠shə) is the largest continental area on Earth, comprising all of Europe and Asia. [3][4] According to some geographers, physiographically, Eurasia is a single supercontinent. [4] The concepts of Europe and Asia as distinct continents date back to antiquity, but their borders ...

  8. List of transcontinental countries - Wikipedia

    en.wikipedia.org/wiki/List_of_transcontinental...

    This is a list of countries with territory that straddles more than one continent, known as transcontinental states or intercontinental states. [1]Contiguous transcontinental countries are states that have one continuous or immediately-adjacent piece of territory that spans a continental boundary, most commonly the line that separates Asia and Europe.

  9. Geography of Asia - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Asia

    Rejecting the Nile River as the Asian border so as not to split Egypt, Ptolemy designates the Red Sea as the border between Libya and Asia. In the north, the border between Asia and Europe is a meridian through the mouth of the Don River northward "to the unknown region." [13] Asia Minor remains "Asia properly so called." [14]