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Archive for June, 2011

Shark Systems: Options for Creating a Home or Business Network

Shark Systems, a leading Canadian reseller of consumer electronics, provides everything you need to set up a home or business network. Networking computers allows selected users to access shared documents from their own workstation and creates a shared Internet connection. While many networks are wired via Ethernet, wireless networks have continuously improved over the past decade, allowing high-speed data transfer using wireless routers and other technologies. Most computers now come with wireless networking cards as standard equipment while continuing to support Ethernet connectivity as well. Shark Systems offers everything you need to set up your home or office network.

1. Ethernet Switches/Hubs: Wired networks often route through an Ethernet switch or hub, which connects to computers and other peripherals such as printers. The switches have multiple Ethernet ports, allowing a number of items to join the wired network. This enables sharing of data, printers, and Internet access. Larger networks can utilize hubs with more ports or additional switches. Shark Systems offers an array of switches in varying capacities from manufacturers like D-Link, IBM, and TRENDnet.

2. Wireless routers: Home routers allow you to connect multiple computers to peripherals, a single Internet connection, and shared data on other computers. Wireless routers allow for a great deal of convenience, connecting equipment throughout the home without any cords or long cables. A wireless network is inherently less secure than a wired one, but the network can be protected by specifying access restrictions. Shark Systems provides many types of routers from manufacturers such as Cisco and Linksys.

3. Network Cards: These devices can be internal or external, and provide computers and peripherals the ability to communicate via wired or wireless Ethernet. Shark Systems offers multiple types of network cards in varying speeds and configurations from companies like Intel and Allied. 4. Network Security: Security devices such as firewalls protect networks from incoming and outgoing security threats. Firewalls regulate network transmissions based on specified protocols or rules. Virtual private networks (VPNs) require authentication from users attempting to connect to them and utilize various levels of encryption to protect transmissions.


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Shark Systems’ Brief Guide to High-Definition Television

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Before purchasing a new high-definition television, consumers must first understand the terminology. The following is information about what the various numbers and letters mean in terms of high-definition technology.

 

A number and a letter comprise resolution standards. High-definition televisions have either 720 or 1080 ratings. The numbers indicate the amount of horizontal lines that make up the image on the screen. Televisions with a 1080 rating have a crisper picture than those with a 720 rating. The letters “i” and “p” denote the type of scan that the television uses to produce an image. The letter “i” stands for interlaced, meaning that the television makes two passes to create an image, one that projects odd numbered lines and one that projects even numbered lines. The letter “p” stands for progressive, meaning that the television projects lines in order from 1 to 720 or 1080 depending on the resolution. For moving pictures, a progressive scan produces a smoother image than an interlaced scan, which may create a slightly jagged or jumpy sense of movement. Thus, 1080p televisions theoretically provide the smoothest and most crisp viewing experience. Many channels that broadcast in high definition, however, do not meet the 1080p standards. In these cases, the television reverts to either 1080i or 720p modes, depending on the broadcast signal.

 

Those shopping for a high-definition television must also consider the television’s aspect ratio. Traditional televisions have a 4:3 aspect ratio, but cinematic films have a 16:9 ratio. Many new television shows now utilize the 16:9 ratio, also known as widescreen. Consumers may also want to consider television connections, particularly High-Definition Multimedia Interface (HDMI) inputs. These inputs allow the television to connect with high-definition devices, such as DVD players and cable boxes. Individuals may purchase a switching box if the television has only one HDMI connector.

 

Consumers may want to consider the advantages of LCD television. Liquid Crystal Display (LCD) technology produces incredibly crisp images without a great deal of hardware, but they require viewers to sit perpendicular to the screen. Plasma televisions also produce superior image quality, but tend to be heavy and are susceptible to screen burn-in, or permanent images in the plasma.

 

About Shark Systems

 

For more than 10 years, Shark Systems has offered a variety of consumer electronics, computer components, and other products at competitive prices. To browse Shark Systems’ extensive inventory, visit www.sharksystems.com. The company also works closely with Oceana’s Scared for Sharks initiative, which encourages governments worldwide to adopt policies that would protect the oceans’ shark populations.

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Oceana & Shark Systems’ Scared For Sharks Initiative

As part of the company’s philanthropic efforts, Shark Systems co-sponsors Oceana’s Scared For Sharks campaign. This environmental initiative is also supported by Mad Men lead actress January Jones, who appears on behalf of Scared For Sharks in the promotional video included below.

According to Oceana’s website, of the more than 300 species listed by the International Union for Conservation of Nature (IUCN), 50 shark species are considered endangered, critically endangered, or vulnerable. However, only three species—white, whale, and basking sharks—receive conservation protection under international law through the Convention on International Trade in Endangered Species (CITES). To address this startling and tragic gap, Oceana has instituted campaigns in several areas, including legal advocacy, scientific research, and international policy, all aimed at increasing protection for these threatened species as well as awareness of the growing problem.

Of the many dangers plaguing shark populations around the globe, heavy fishing, bycatching, and shark finning represent the three greatest threats. While the damage from excessive fishing may be self-evident, many people have not heard of bycatching or shark finning and thus do not know these activities’ harmful repercussions. Bycatching refers to damage or death caused to species that are caught by fishermen intending to catch a different kind of fish. According to the Food and Agriculture Organization of the United Nations (FAO), very few fisheries do not catch sharks as bycatch, and some fishing operations actually catch a greater number of sharks than their intended species, such as tuna or salmon. Bycatching, therefore, stands as both a wasteful and damaging phenomenon for shark populations, which is why Oceana has campaigned against the use of the fishing equipment that causes the greatest damage through bycatching, such as long lines, trawls, and gillnets.

Shark finning refers to the act of cutting off a shark’s fin, which is then usually used in cooking. In shark finning, fishermen throw the shark back into the water after taking the fin, resulting in the shark slowly bleeding to death. This incredibly cruel practice also produces significant waste, since the majority of the shark is discarded.

If you would like to join Shark Systems and Oceana in their efforts to advocate on behalf of threatened sharks around the world, please visit na.oceana.org or the company website at www.sharksystems.com and click on the banner at the bottom of the page.