Quote from: walidzohair on August 11, 2013, 01:39:34 PM

Can the asic miners mine scrypt currencies ?

No. The current crop of machines referred to as ASICs around here are built for SHA256 hashes. ASIC simply means "application-specific integrated circuit", it is not specific to bitcoin, or to SHA256 or scrypt or anything. It is a generalized term for hardware that performs specific tasks.

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i mean supposed the there is a new software version for enabling them to mine SCRYPT currencies (which is a lot) ?

ASICs are a piece of hardware, written in silicon. There can not be new software versions. New designs must be created and new machines must be built for scrypt, or any purpose.

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and if yes then at what performance?

This would require a lot of engineering time to figure out. It also depends on how good those engineers are. Scrypt is a very complex algorithm that attempts to punish you by requiring more memory the faster you go. It is called a time memory tradeoff. In contrast, SHA256 is rather simple: faster is better.