Selamat Datang Ke Laman Web Data Communication Frequency
TCP/IP & Difference Between IPv4 and IPv6
In the mid-1970s, the Defense Advanced Research Projects Agency (DARPA) became interested in establishing a packet-switched network to provide communications between research institutions in the United States. DARPA and other government organizations understood the potential of packet-switched technology and were just beginning to face the problem that virtually all companies with networks now have—communication between dissimilar computer systems.
With the goal of heterogeneous connectivity in mind, DARPA funded research by Stanford University and Bolt, Beranek, and Newman (BBN) to create a series of communication protocols. The result of this development effort, completed in the late 1970s, was the Internet Protocol suite, of which the Transmission Control Protocol (TCP) and the Internet Protocol (IP) are the two best-known protocols.
The most widespread implementation of TCP/IP is IPv4 (or IP version 4). In 1995, a new standard, RFC 1883—which addressed some of the problems with IPv4, including address space limitations—was proposed. This new version is called IPv6.
How to Troubleshoot LAN, WAN and PAN Internet Connections
Network equipment and medium varies widely between WAN (Wide Area Network), LAN (Local Area Network) and PAN (Personal Area Network) connections. However, if they all have connections to the Internet, then they all have TCP/IP as a common protocol that can be used to test connectivity on each network. Run "ping" and "tracert" utilities in Microsoft Windows 7 to troubleshoot connectivity issues on networks connected to the Internet
.
1. Start the Windows 7-run computer, and select the "Programs" icon. Then select "Accessories." Right-click on the command line item in the menu that appears, and click "Run as Administrator."
2. Enter "ping 127.0.0.1" in the command line window that appears. Tap the "Enter" key. Confirm that four replies are displayed in the command line output and proceed to the next step. Otherwise, reinstall the network adapter drivers, reboot the computer and then repeat the ping test before proceeding to the next step.
Gadget Technologies 2012
Welcome to the new year 2012. This new year is very competitive of gadgets that current and perform the technologies race.
Technology so advanced,you’ll forget it’s even there. when pick up iPad, that is an innovative design with just 8.8 mm thin and weights as 601 g. Very comfortable to hold on the hands.
also, there are iOS, that is the operating system for iPad. And it lets you see and do everything just by touching the screen. It includes all the powerful, innovative and fun built-in apps you use every day, many times a day. It’s the platform for which more than 140,000 other amazing iPad apps have been created to take advantage of the large Multi-Touch screen. And now with over 200 new features in iOS 5 — including Newsstand, iMessage and Notification Center — iOS is yet another reason no other device comes close to iPad.

for the Samsung Galaxy Tabs, there are more goods portable design, powerful performance, Full HD Players dan Android 3.2 Portable HoneyComb Platform.
Just finishing your reading from Catatan Gemilang.
















