Code: The Hidden Language of Computer Hardware and Software, Second Edition by Charles Petzold

Code: The Hidden Language of Computer Hardware and Software, Second Edition by Charles Petzold

Author:Charles Petzold
Language: eng
Format: mobi, epub
Publisher: Microsoft Press
Published: 2023-08-15T00:00:00+00:00


These four inputs are all 1 only for the BCD number 0101.

A more common approach to displaying decimal numbers is a seven-segment display. This consists of seven elongated lights arranged in a simple pattern:

When these displays are manufactured, generally there are seven pins on the back, one for each of the seven segments. An eighth pin is for the ground. Voltages applied to combinations of those seven pins light up the appropriate segments to show a particular decimal digit:

For the ease of wiring up the seven-segment display, each of the segments is assigned an identifying letter:



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