I wrote these haiku about binary numbers:
Binary numbers,
they are just zeros and ones.
Switches — on and off!
The powers of two,
nonnegative, negative.
Binary numbers.
I type in 13.
Decimal to binary.
1101.
Numbers don’t add up.
IEEE floating-point.
Use an epsilon.
(Please post your own in the comments.)

Just with eight fingers
I can count to 255.
Binary’s handy!
@Archimedes,
I like it, although you only get seven syllables when you pronounce 255 “two-five-five”.
Only seven? Isn’t that the general idea? I was under the impression that the Haiku form was usually comprised of 5,7,5 syllables, as per the definition in the main article and in your own efforts.
@Archimedes,
Sorry for the confusion. I meant as opposed to how I naturally want to read it, which would incorrectly give it 8 syllables: “I can count to two fif ty five” (You need to read it as “I can count to two five five” to make it work — 7 syllables).
Aaah, I see what you mean. 🙂
It is 11/
11/11 now
Rick’s ultimate day!
@Steve,
Actually, I preferred 10/10/10 (I like 0s in my binary).
D’oh! I knew it!
010
10101
1101
@Dev Chheda,
Nice (as binary as a Haiku can get I guess).