By Anonymous April 21, 2010
I called OC Nano for computer service because I was tired of the head-aches of dealing with the Geek Squad. They came to my home and set up my network and serviced both of my computers without a single issue. In fact, they provided the most friendly and knowledgeable technician I've ever met. I highly recommend OC Nano for computer services and data backup. They saved us hassle and lot of money! Dave and Marci Laguna Beach, CA ...read more
It wasn't so long ago that the cell phone world was just transitioning to3G technology. But now, just as we're getting settled, the ever-restless industry is moving on again. Fourth-generation technology, or 4G, is gaining traction and carriers are promising even faster data speeds. So what is 4G?To start, think of wireless technology as a family that gets faster with each generation. Second-generation (2G) networks were faster than the original first-generation wireless technology; third-generation (3G) is faster than 2G; and 4G is faster than 3G. Speed is important for data transmission (not so much for voice) because a faster network lets you do more with your phone. The 3G networks that we use today allow us to stream video, download music tracks and other large files, and surf the Web on full HTML browsers. Think of it like moving from a dial-up Internet connection to cable or DSL--suddenly you could do more with your computer and do it faster. That's why it's easiest to think of 4G not in terms of what it is, but rather in terms of what it can do. While 3G offers data speeds of about 1.5 to 2 megabits per second (Mbps), 4G will double that--and it could go even faster. It's important to remember, however, that promises are just that. As anyiPhoneuser can tell you, 3G speeds can vary widely in everyday use, so 4G performance won't always be perfect. Types of 4GJust as there are different types of 3G (EV-DO, UMTS, and HSDPA) there are two main types of 4G. I'll tell you the basics, but before we start it's important to note that 4G more or less marks the end of the traditional CDMA/GSM divide. Carriers can choose which technology they're going to employ--they aren't limited by what they're using now. That's why you'll get Verizon Wireless and AT&T; both choosing the same 4G solution. They won't necessarily be interoperable, but they will be similar. LTELTE, aka long-term evolution, is the natural outgrowth of current 3G technologies. As it has an all-IP architecture, it treats everything it transmits, even voice, as data.Verizon WirelessandAT&Thave chosen LTE, and it's expected thatT-Mobilewill go that way as well. At the time of this writing, no commercial LTE devices are available in the U.S. market, though we expect to see announcements later this month at the annualCTIAshow in Las Vegas. Verizonsaid Mondaythat LTE testing in Seattle and Boston has gone well and that it will bring the technology to 25 to 30 markets this year. According to the carrier, its network is capable of download speeds of 40Mbps to 50Mbps and upload speeds of 20Mbps to 25Mbps. Average speeds, however, will more likely range from 5Mbps to 12Mbps for downloads and 2Mbps to 5Mbps for uploads. In contrast, AT&T is a bit further behind. The carrierannounced in Februarythat it will begin LTE testing later this year and will deploy commercial networks in 2011. So, at least for the time being, don't get your hopes up that a4G-capable iPhonewill arrive at AT&T this summer. T-Mobile will be playing catch up for some time, too. Last month at the Mobile World Congress, T-Mobile CTO Cole Brodman said the carrier will expand its HSPA+ network to more U.S. cities this year. Though Brodman billed it as 4G technology, HSPA+ is an advanced 3G technology. WiMaxIn contrast to LTE, WiMax, which stands for Worldwide Interoperability for Microwave Access, isn't an evolution of current cellular systems. Rather, it's more related to current Wi-Fi technology. The initial version for mobile use is based on the 802.16e wireless standard (Wi-Fi is 802.110). It has potential for very long range transmission (up to 30 miles) and could offer speeds of about 10Mbps. Sprintis the only U.S. carrierto adopt WiMax, but for now the carrier's network is more widely available than LTE. Sprint and Clearwire have aWiMax networkin 27 cities withat least eight moreslated for the first half of this year. Sprint is promising average speeds of 3Mbps to 6Mbps with peak speeds up to 10Mbps. The carrier also has no 4G phones for now, but itintroduced a WiMax-capable routerlast January at CES. And we expect to see it roll out some real 4G phones at CTIA. OC Nano ...read more
By OC Nano April 21, 2010
When you have a problem with your Windows computer, you will need to contact the Microsoft support center. However, many people are unsure of how to reach support or what information will be required. Fortunately, the steps for reaching technical support are simple. Follow this guide to ensure that yo... ...read more
Like any other business, remote IT support requires a method for charging customers for services completed. However, many people who are starting their own remote IT support company may not be familiar with the best methods for customer billing. Fortunately, there are several different possible billin... ...read more
