Talk:Units of information
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Ny?
[edit]Someone added a note claiming that "ny" is the abbreviation for "nybble". I coud not find a reference with Google, but maybe I didn't look right. Can anyone confirm this? Thanks, --Jorge Stolfi (talk) 00:21, 28 December 2009 (UTC)
256 bytes: paragraph
[edit][1]. x86 paragraph is 16 bytes (in real mode or virtual x86 mode), but what paragraph may be 256? Incnis Mrsi (talk) 21:27, 28 March 2010 (UTC)
How many bits do we know about ancient Greek culture?
[edit]Some one had estimated this (a billion or trillion bits???), probably in connection with the Drake equation -- perhaps in an attempt to estimate the energy cost of sending, across the galaxy, an amount of information worth sending in light of the delay before getting back a "Could you say a little more about that?" message. Probably not a notable coinage for inclusion, since not mentioned in the article, but i can't even recall for sure the name (a Hellade?) they proposed, in order to rule it out with a Google search. Anyone else remember this?
--Jerzy•t 07:32, 20 April 2010 (UTC)
Nybble "unusual or obsolete"?
[edit]Since hexadecimal is so often used to represent bitstrings, I'd hardly say the nybble is "unusual or obsolete" - indeed, the fact that it's got its own section higher up seems to belie this. Twin Bird (talk) 15:30, 26 April 2011 (UTC)
- I think nibble is common enough, but I've never seen it spelled nybble so IMO that is unusual. Stevebroshar (talk) 14:11, 21 December 2024 (UTC)
Quad term is listed as 2 bit?
[edit]The meaning of "quad" in my memory was not 1/4th of something, it was and is 4 of something. Calling 2 bits a quad is not correct. a quad is 4 bits just as a byte is 8 bits. I have found numerous items on google where quad = 4 of something, but have not found an instance of where quad = 1/4 of something. One instance is http://www.fujitsu.com/downloads/EDG/binary/pdf/find/25-1e/3.pdf (calvin Thomas 28 June 2013) — Preceding unsigned comment added by 208.254.58.8 (talk) 17:00, 28 June 2013 (UTC)
- I can’t point to an explicit usage, but the quad term for “2-bits” could or should refer to the fact that 2 bits may encode a set of 4 or a quad of symbols; cf. 2-phase stepper motor quadrature and 2-bit quadrature encoding. IveGoneAway (talk) 22:57, 25 October 2013 (UTC)
- Article does say "Some machine instructions and computer number formats use two words (a "double word" or "dword"), or four words (a "quad word" or "quad")" which is in line with what you think, right? As for quad meaning 2 bits IDK ... who knows? That's in the unusual units section that is more a fun section than hard info. Stevebroshar (talk) 14:09, 21 December 2024 (UTC)
Nonencyclopaedic section should be removed
[edit]The section Units of information#Obsolete and unusual units lists essentially humorous units of measurement with citations that are not in general secondary sources, and mostly did not enter into general use; they are mostly simple attempts at humour. The heading of the section is also misleading. This section is IMO utterly unencyclopaedic and should be deleted. —Quondum 14:01, 31 May 2014 (UTC)
- Killjoy ;) Stevebroshar (talk) 13:57, 21 December 2024 (UTC)
Failure to distinguish between units of digital capacity and units of information
[edit]There is a distinction between digital information capacity, which corresponds to the logarithm of the number discrete states of which any one may be selected, and the logarithmic measure of uncertainty that is used in information theory. The former is appropriately measured in bits, trits, bytes, decits etc., whereas the units for the latter are shannons, nats and hartleys. This article should highlight the distinction in what is being measured, and accordingly, the units that apply in each case. It would, for example, be valid to describe a particular 8 bits of storage as holding 5.32 shannons of information, depending on the statistics (entropy) of the stored information (one bit can hold between 0 and 1 shannon). —Quondum 21:49, 2 September 2014 (UTC)
- Over my head. But maybe it applies to this article and you should add it. Stevebroshar (talk) 14:05, 21 December 2024 (UTC)
gulp
[edit]https://www.oxfordreference.com/view/10.1093/oi/authority.20110803095912243
https://encyclopedia2.thefreedictionary.com/gulp --Espoo (talk) 14:57, 24 October 2020 (UTC)
- Do you have a point? A request? A suggestion? Stevebroshar (talk) 14:00, 21 December 2024 (UTC)
32b words on IA-32?
[edit]> In the IA-32 architecture more commonly known as x86-32, a word is 32 bits
Really? Historically on Windows, and e.g. with MASM, words are 16b because of the 8086 (which is a 16b arch) roots of IA-32. For e.g a 32b number, “double word” is used. — Preceding unsigned comment added by 2001:910:103A:0:5054:FF:FE94:A3F7 (talk) 10:02, 24 February 2024 (UTC)
- Do you have suggestion? Or just complaining? Stevebroshar (talk) 14:03, 21 December 2024 (UTC)
bp and qbit
[edit]I think genetic base pairs should be listed as equivalent to two bits, and qbits, while not a unit of classical information, should at least be mentioned as a related concept with a link to quantum information theory. 2A02:8108:8AC0:3A20:5799:6582:948A:1AE3 (talk) 06:02, 19 August 2024 (UTC)
- This article is not about genetics. And, what does genetics have to do with quantum information theory? Stevebroshar (talk) 14:03, 21 December 2024 (UTC)
Size examples?
[edit]This is the most fantastic information I've found on WP. I have some suggestions for additions: 1237456 and 5777848. Wait List of numbers is better! Stevebroshar (talk) 14:24, 21 December 2024 (UTC)
Not a good start
[edit]The start "In digital computing and telecommunications, a unit of information is the capacity of some standard data storage system or communication channel, used to measure the capacities of other systems and channels" has issues.
First, I don't think it's about standard. I'd remove that word.
Second, this seems to say two things in a grammatically overlapping/bad way. Is it the capacity of something or is it used to measure the capacity of another system/channel?
And what does unit of information have to do with capacity? Capacity could be measured in some unit, but a unit is not inherently about capacity. It's about measurement.
How about: A unit of information is any unit of measure for computing and telecommunication data." Stevebroshar (talk) 14:44, 21 December 2024 (UTC)
Bit is specific to binary systems
[edit]WRT "The most commonly used units of data storage capacity are the bit" is true for binary computers, but not all computers (even digital ones) are binary. Well most are. But, we can conceive of non-binary computers. Decimal computers for example. So, yes, bit is a common unit since binary computers are the most common computers. But, I think it's a little misleading as-is.
Further, I think byte is more commonly used that bit.
Here's a re-write. It includes the elusive use of paragraph: starts with a general statement that later sentences support.
Units of measure cover the wide range of sizes that apply to data; often defining one unit in terms of a number of smaller units. The bit is the smallest unit of measure -- storing a value that is one of two possible states. The nibble, 4 bits, is not commonly used unit today, but byte, 8 bits, 2 nibbles, is possibly the commonly used base unit. The word is also commonly used, but has different sizes based on context. Larger sizes can be expressed as multiples of a base unit. For example, using the SI prefixes (power-of-ten prefixes) or the newer IEC binary prefixes (power-of-two prefixes). Stevebroshar (talk) 15:00, 21 December 2024 (UTC)
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