![](http://www.alamy.com/thumbs/6/BD0E8095-BFF5-48BA-9196-AB1BAE95F247/F73PPP.jpg)
Black button of the device for computing close-up
Size: 6824px × 4572px
Photo credit: © Oleksandr Zheltobriukh / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: button, calculate, calculator, caster, characte, clef, clue, computer, count, counter, depend, digit, digital, enumerator, expect, figure, fount, key, knob, meter, note, number, numeral, numerator, numeric, pin, reckon, register, signature, snap, spring, stop, tack, tally