What is HDMI and What is DHCP?

LOL, I got these 2 questions from one of my Laptop Blog readers:

“What is HDMI”

“What is DHCP?”

Well, since I am a nice guy, I figured I’d helping in my simple language but here’s my definition of them for all of you readers who don’t know:

“What is HDMI”

HDMI is the adaptor that lets you connect your laptop/computer to an HD LCD TV digitally, about 100 times better quality than something like SVIDEO.   Plus, you can also transfer audio through the same cable so you don’t need 3 cables like back in the day.

Here’s my tip on HDMI.  If you are going to connect your laptop to your new 50-inch HD LCD TV, make sure to buy a laptop with support for HDMI.  Then you can surf the web in crystal, clear picture via HDMI.  (Read my HDMI tips here Also you can get a cheap, long 25-feet HDMI cable here.)  HDMI is basically da shi+!

According to Wikipedia:

High-Definition Multimedia Interface (HDMI) is a compact audio/video interface for transmitting uncompressed digital data.[1] It represents a digital alternative to consumer analog standards, such as Radio Frequency (RF) coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, and VGA. HDMI connects digital audio/video sources—such as set-top boxes, Blu-ray Disc players, personal computers (PCs), video game consoles (such as the PlayStation 3 and Xbox 360), and AV receivers—to compatible digital audio devices, computer monitors, and digital televisions.[1]

“What is DHCP?”

DHCP is how you can generate shared IP addresses from a single IP address.  This is needed for example, to connect multiple computers/laptops on your DSL.  Without DHCP, it’d be impossible.

DHCP allows you to create a network of computers from a single IP address, or make private addresses such as 192.168.1.X or 10.0.0.X where X can be anywhere from 1 to 255.  Of course, usually the router itself needs an address so you will have to reserve one of private IPs for that.

With DHCP, most of you computers are safely behind a firewall but you can specify one of those IP address to represent public.

According to WIkipedia:

In computer networking, the Dynamic Host Configuration Protocol (DHCP) is a network application protocol used by devices (DHCP clients) to obtain configuration information for operation in an Internet Protocol network. This protocol reduces system administration workload, allowing networks to add devices with little or no manual intervention.

I tried to make it as simple as possible for non-computer geeks to understand here but please feel free to add in the comments line if you think you can explain HDMI and DHCP in simpler terms.

2 Responses to What is HDMI and What is DHCP?

  1. Roedor says:

    I believe you are confusing DHCP with NAT.

    DHCP is a protocol to dynamically assign IP addresses (amongst other parameters). This allows clients in an IP network to automatically configure themselves without manual IP configuration.

    NAT is a network address translation protocol than can be used to share one single (public) IP address.

    The combination of DHCP allows you to a) assign dynamically multiple addresses to several clients in your home (PCs, etc) and through NAT b) share one single internet connection (public IP address) amonst several clients (which got their IP addresses assigned through DHCP).

  2. Roedor says:

    I believe you are confusing DHCP with NAT.

    DHCP is a protocol to dynamically assign IP addresses (amongst other parameters). This allows clients in an IP network to automatically configure themselves without manual IP configuration.

    NAT is a network address translation protocol than can be used to share one single (public) IP address.

    The combination of DHCP allows you to a) assign dynamically multiple addresses to several clients in your home (PCs, etc) and through NAT b) share one single internet connection (public IP address) amonst several clients (which got their IP addresses assigned through DHCP).

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