In communication networks, a topology is a usually schematic description of the arrangement of a network, including its nodes and connecting lines. There are two ways of defining network geometry: the physical topology and the logical (or signal) topology. The physical topology of a network is the actual geometric layout of workstations. There are several common physical topologies, as described below and as shown in the illustration.BUS NETWORK TOPOLOGY:- Every workstation is connected to a main cable called the bus. Therefore, in effect, each workstation is directly connected to every other workstation in the network.Star Network Topology :-There is a central compu... Read more
clicks 359 View   Vote 0 Like   8:35am 22 Nov 2013 #
Password Protect folders in Windows without any SoftwareMost of us have private data. Not all of us have a private computer to keep that data. So, we just end up with other people viewing that data. Although password protecting software do work, it is almost useless to hide private data with these software(because we are always questioned as to what it is that we are hiding with the help of these software).Hidden folders do not work as anyone can use Folder Options to make a hidden folder visible. So, we need an alternative way to create hidden password protected folders which only we can access. And that is exactly what we will learn in this post.With this trick, you can create a secure pas... Read more
clicks 352 View   Vote 0 Like   9:58am 21 Nov 2013 #Tips & Tricks
Internet Protocol Address (or IP Address) is an unique address that computing devices use to identify itself and communicate with other devices in the Internet Protocol network. Any device connected to the IP network must have an unique IP address within its network. An IP address is analogous to a street address or telephone number in that it is used to uniquely identify a network device to deliver mail message, or call ("view") a website.Dotted DecimalsThe traditional IP Addresses (IPv4) uses a 32-bit number to represent an IP address, and it defines both network and host address. Due to IPv4 addresses running out, a new version of the IP protocol (IPv6) has been invented to offer vir... Read more
clicks 369 View   Vote 0 Like   9:29am 8 Nov 2013 #
This guide explains how to set up a router for home computer networks. The exact names of configuration settings on a network router vary depending on the model and whether it is wired or wireless. However, this general procedure will guide you through the process for the common kinds of home network equipment.   Difficulty:AverageTime Required: 1 hourHere's How:1.        Choose a convenient location to begin installing your router such as an open floor space or table. This does not need to be the permanent location of the device. Particularly for wireless routers, you may find it necessary to re-position the unit after in... Read more
clicks 462 View   Vote 0 Like   5:47am 18 Oct 2013 #
What is the Use of The Proxy?Hide your IP. Browse the Internet anonymously.100 percentage working process listShareHere is the list of proxy server address. use it and enjoy. Read more
clicks 382 View   Vote 0 Like   12:01pm 11 Oct 2013 #Others
RJ-45 connector data cable contains 4 pairs of wires each consists of a solid colored wire and a strip of the same color. There are two wiring standards for RJ-45 wiring: T-568A and T-568B. Although there are 4 pairs of wires, 10BaseT/100BaseT Ethernet uses only 2 pairs: Orange and Green. The other two colors (blue and brown) may be used for a second Ethernet line or for phone connections. .To create a straight-through cable, you'll have to use either T-568A or T-568B on both ends of the cable. The diagram depicted on the left and right shows clip of the RJ-45 connector down.To create a cross-over cabl... Read more
clicks 371 View   Vote 0 Like   10:34am 10 Oct 2013 #
Due to problems in the computer hardware, the display may not receive a signal when the monitor is turned on. Even though the CPU may seem to be running, there could be no display on the monitor. This could occur due to problems in the CMOS, RAM, VGA card or the cable which connects the CPU to the monitor. All components inside the computer casing are prone to dust particles which may deposit on the hardware components and prevent them from working properly. Sometimes cleaning the CMOS battery and the RAM can help solve display problems. The monitor cable and VGA should also be checked. IssueI have a problem with my computer. Until a few days ago it was running normally but now, wh... Read more
clicks 349 View   Vote 0 Like   9:20am 26 Sep 2013 #
Steps:-1. Open Command Prompt As Run as Administrator.                                                                                                                                                                                      &nbs... Read more
clicks 331 View   Vote 0 Like   12:44pm 25 Sep 2013 #Tips & Tricks
iOS7 gives you the opportunity to get information about the current weather at any time and in real time via the message center? To enable this option:            ·         On your iPad or iPhone, go to Settings.            ·         Scroll to Privacy            ·         Then select "Location Services"            ·         Scroll down "Weather" and turn this feature ON.... Read more
clicks 274 View   Vote 0 Like   9:39am 25 Sep 2013 #Tips & Tricks
How to Use USB Pen drive as RAM of ComputerU can increase your RAM without any extra investment. This trick will surely improve the performance of your computer and increase operational speed. Here you have to use a USB pen drive or flash drive, which can be used as RAM of your computer. Before trying this trick, make sure this can damage pen drive so be careful. Just follow given steps carefullyHow to use USB pen drive as RAM in Windows XP :-1. First connect your pen drive to computer. Note that pen drive should be at least of 1 GB.2. Now right click on the my computer and then click properties.3. Click on Advanced Tab and then Performance.4. Now click on ... Read more
clicks 276 View   Vote 0 Like   2:26pm 20 Sep 2013 #Others
POST:-Thecomputer Power-on self-test (POST) tests the computer to make sure it meets the necessary system requirements and that all hardware is working properly before starting the remainder of the boot process. If the computer passes the POST the computer will have a single beep (with some computer BIOS manufacturers it may beep twice) as the computer starts and the computer will continue to start normally. However, if the computer fails the POST, the computer will either not beep at all or will generate a beep code, which tells the user the source of the problem.BIOS Beep Codes:-AMI BIOS beep codes:-Beep CodeDescriptions1 shortDRAM refresh failure2 shortParity circuit failure3 shortBa... Read more
clicks 271 View   Vote 0 Like   10:49am 17 Sep 2013 #Hardware
If you did not format your flash drive, then check whether the files are not in hidden mode. Click on "Start" -->Run-->type cmd and click on OK. Here I assume your pendrive as H: Enter this command. attrib -h -r -s /s /d h:\*.* Note : Replace the letter h with your flash drive letter. Now check for your files in Pen Drive.... Read more
clicks 288 View   Vote 0 Like   2:02am 16 Sep 2013 #Tips & Tricks
What Is a Hard Disk Drive?Your Hard Disk or sometimes called a Hard Drive, is the main storage space inside your PC. It is a permanent storage component unlike the RAM (Random Access Memory). It is possible for your computer to function without a hard disk, however it would be basically useless to you as you would not be able to use an Operating system or have any programs to use. Unless you had another form of mass storage device such as an SSD (Solid State Drive).Hard disks use circular hard platters to store data on. They are in pristine condition with a mirror like finish to them. These platters are locked away inside a steel casing as unclean air can easily ruin a hard disk. This is why... Read more
clicks 290 View   Vote 0 Like   10:23am 10 Sep 2013 #Hardware
It has happened to most of us. We buy a new hard drive (or maybe a flash drive) with mind boggling storage capacity only to find that it has less space than what was mentioned on the box. Angered, we start cursing the manufacturer and our dealer for false marketing thinking that they should be sued for doing this. Hey, but have you ever wondered how they continue to do this again and again without getting into legal trouble?The answer is that they are not marketing it falsely at all. Surprised? I'll explain.A manufacturer considers 1 Megabyte to be 1000 Kilobytes, 1 Gigabyte to be 1000 Megabytes, 1 Terabyte to be 1000 Gigabytes and so on. This is correct considering that kilo means 1... Read more
clicks 261 View   Vote 0 Like   4:16pm 8 Sep 2013 #Hardware
Below is a listing of all the major shortcut keys in Microsoft Word :-ShortcutDescriptionCtrl + 0Adds or removes 6pts of spacing before a paragraph.Ctrl + ASelect all contents of the page.Ctrl + BBold highlighted selection.Ctrl + CCopy selected text.Ctrl + DOpen the font preferences window.Ctrl + EAligns the line or selected text to the center of the screen.Ctrl + FOpen find box.Ctrl + IItalic highlighted selection.Ctrl + JAligns the selected text or line to justify the screen.Ctrl + KInsert link.Ctrl + LAligns the line or selected text to the left of the screen.Ctrl + MIndent the paragraph.Ctrl + POpen the print window.Ctrl + RAligns the line or selec... Read more
clicks 250 View   Vote 0 Like   1:36pm 6 Sep 2013 #Tips & Tricks
“This is a Certificate Course designed to impart knowledge at a basic level in computers for the common man.”Benefits: On successful completion of the course, you'll be enabled to use a computer for basic purposes of preparing personal/business letters, viewing information on Internet (the Web), sending mails, preparing business presentations. “This course is offered under Ministry of Communications and Information Technology, Government of India. You can go for jobs in both public and private sector.”... Read more
clicks 331 View   Vote 0 Like   10:31am 6 Sep 2013 #
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