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How does a security passcard work?

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Security passcards are often used to gain entry into areas and buildings with restricted access. Find out what data is kept an encoded security passcard and how they work.

What Is a PC?

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PCs are now used by almost everyone in some aspect of daily life. So what's going on inside that PC tower or laptop case? We'll explain the components.

How Removable Storage Works

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Removable memory has unchained us from our PCs -- we can now carry gigabytes of data wherever we go, in a device the size of a matchbox. Learn about the three major digital storage technologies.

How EUVL Chipmaking Works

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Current chip-producing methods will reach the speed limit in the not-so-distant future. Extreme ultraviolet lithography is the future of computer-chip manufacturing. Find out all about EUV chipmaking.

How VDSL Works

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VDSL is the next step forward in high-speed broadband technology. Find out how VDSL achieves incredibly high speeds and compare VDSL to other DSL types.

How SCSI Works

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SCSI (pronounced 'scuzzy') is an ultra-fast, high-power communications bus that connects up to 15 devices to your computer. Find out how this bus operates.

How Shockwave 3-D Technology Works

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3-D Shockwave is a new technology that lets you manipulate 3-D images over the Internet. Find out how it works.

How VoIP Works

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VoIP lets you make calls through your computer, sometimes for free. Learn how VoIP works, find reviews of VoIP phones and learn how to make free VoIP calls.

How Does an Optical Mouse Work?

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How do optical mice work? Take a look at the technology that goes into optical mice and see what makes optical mice work.

How Ubiquitous Networking Will Work

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As we move closer to intelligent computers, they may begin to follow us wherever we go. Learn how ubiquitous networking will allow our data and information to travel with us.

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