When used as an adjective, which is the prefered use, with or without a hyphen?
8bit data bus 8-bit data bus
16bit word 16-bit word
24bit palette 24-bit palette
32bit address space 32-bit address space
I did a quick Google and "8-bit" gets 6.4m hits and "8bit" gets 3.2m hits.

JGH
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When used as an adjective, which is the prefered use, with or without a hyphen? 8bit data bus 8-bit data ... a quick Google and "8-bit" gets 6.4m hits and "8bit" gets 3.2m hits.Seems to me you've answered your own question.

Will.
When used as an adjective, which is the prefered use, with or without a hyphen? 8bit data bus 8-bit data ... address space 32-bit address space I did a quick Google and "8-bit" gets 6.4m hits and "8bit" gets 3.2m hits.

I can't see any justification for "8bit" (which to me almost seems like it should be "octobit", wot?).

Steny '08!
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When used as an adjective, which is the prefered use, ... and "8-bit" gets 6.4m hits and "8bit" gets 3.2m hits.

I can't see any justification for "8bit" (which to me almost seems like it should be "octobit", wot?).

Or some kind of texting abbreviation.
Cu l8er allig8or

Ross Howard
When used as an adjective, which is the prefered use, with or without a hyphen? 8bit data bus 8-bit data bus 16bit word 16-bit word 24bit palette 24-bit palette 32bit address space 32-bit address space

I can't speak for everyone, but I can speak for those who value doing things correctly.
An 8-bit data bus is a data bus eight bits wide.
A 16-bit word is a word sixteen bits long.
A 24-bit palette is a palette with 24 bits to specify the color. A 32-bit address space is a memory with an address bus 32 bits ling.

Go with the hyphenated form when used adjectively.

Steve (Mr Know-it-All) MacGregor
When used as an adjective, which is the prefered use, with or without a hyphen? 8bit data bus 8-bit data ... 32-bit address space I did a quick Google and "8-bit" gets 6.4m hits and "8bit" gets 3.2m hits. JGH

Why either? What is wrong with just a space -even if in an adjectival sense?

Henry
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Why either? What is wrong with just a space -even if in an adjectival sense?

Because when phrases of one part of speech are converted to other parts, the hyphens disambiguate.
For example "log in" is a verb (main parts: log in / logged in / logged in / logging in / logs in). So if you tell someone to list his log in names, he may wonder in which names he is to list his log. Telling him to list his log-in names is not confusing.
If you are talking about 8 bit words, someone may wonder what a bit word is, and why eight such words are necessary. Talking about 8-bit words is not confusing.
But too many hyphens can be bad, too. There is a restaurant near us that has on its menu the item "6-crab puffs". What, exactly, is a 6-crab puff, and how many are there to an order?
Making up your own punctuation is a bad thing, such as your space+hyphen above, where you should have use comma+space. I see too many instances of a hyphen used instead of a dash by people who appear not to realize that a hyphen does not separate words; it ties them closer together.

Steve
When used as an adjective, which is the prefered use, with or without a hyphen? 8bit data bus 8-bit data bus 16bit word 16-bit word 24bit palette 24-bit palette 32bit address space 32-bit address space

When I saw it in the subject line I thought it said " or 8-bit".

The hyphen seems to aid clarity.

Steve Hayes from Tshwane, South Africa
http://www.geocities.com/Athens/7734/stevesig.htm
E-mail - see web page, or parse: shayes at dunelm full stop org full stop uk
When I saw it in the subject line I thought it said " or 8-bit".

I think Santa needs to bring you, in addition to a proper Internet connection, a new ribbon for your Teletype.

Mike Barnes
Cheshire, England
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