bandwidth / range
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range
The scope or variety of different things, possibilities, or opinions within a particular area.
Das Festival bietet eine große Bandbreite an musikalischer Unterhaltung.
The festival offers a wide range of musical entertainment.
The word is made up of 'Band' (band) and 'Breite' (width). It literally describes the width of a band, which is used both for technical frequency bands and, figuratively, for a spectrum of possibilities.
Die Bandbreite der Themen in diesem Kurs ist beeindruckend.
The range of topics in this course is impressive.
In everyday language, 'Bandbreite' usually means variety or range. In technical contexts, especially when it comes to the internet or data transmission, it refers to the maximum data rate.
Das Museum zeigt die ganze Bandbreite seines Schaffens.
The museum shows the full range of his work.
In the figurative meaning, 'Bandbreite' is often used with the preposition 'an' followed by the dative plural. The phrase 'eine große Bandbreite an ...' (a wide range of ...) is typical.
Der Laden bietet eine große Bandbreite an verschiedenen Käsesorten.
The shop offers a wide range of different types of cheese.
In the technical meaning, 'Bandbreite' is often combined with adjectives such as 'hoch' (high), 'niedrig' (low), 'groß' (large), or 'gering' (low). Typical verbs are 'haben' (to have), 'brauchen' (to need), or 'erhöhen' (to increase).
Für Online-Spiele braucht man eine stabile Internetverbindung mit hoher Bandbreite.
For online games, you need a stable internet connection with high bandwidth.
scope / circumference
'der Umfang' and 'die Bandbreite' can both indicate how large an area is. 'Umfang' is more about: How much belongs to it? How big is the task, the text, or the offering? 'Bandbreite' is more about: How different are the possibilities, opinions, or examples within this area? That is why the words can be confused when talking about a large area. 'Umfang' fits better for amount or size, while 'Bandbreite' fits better for variety.
Die Bandbreite der Meinungen war groß, deshalb dauerte die Diskussion lange.
The range of opinions was wide, so the discussion took a long time.
Im Büro besprechen wir den Umfang der neuen Aufgaben für die nächsten Wochen.
At the office, we discuss the scope of the new tasks for the next few weeks.