Do u want to connect two computers to one monitor and display the information of a PC that you want to see on the monitor. If you need to connect two computers to one monitor you will first have to get a switch box. After that you will be able to connect the two computers to the monitor through the switch box. You can connect one monitor for two PCs, two Macs, or a PC and a Mac.

Here is a step by step instruction on how to connect two computers to one Monitor

Step 1:  Buy a switch box. the switch box is also called as KVM Switch.  Use a search engine like Google or Yahoo to find to switch-box manufacturers. Think about buying a box with extra ports in case you might want to hook up any extra machines later on down the line.

Step2
Buy a pair of SVGA cables if they aren't included with the switch box you buy (kits including a box and cables are a more practical value for most setups).

Step3
Buy any necessary adapters if you plan to connect a PC and a Mac to one monitor.

Step4
Shut down both computers.

Step5
Connect the monitor to the switch box (probably to the center socket on most boxes).

Step6
Connect both computers to the switch box (probably to the center socket on most boxes).

Step7
Connect both computers to the switch box.

Step8
Tighten all hand-screws on monitor plugs.

Step9
Turn on monitor.

Step10
Reboot both computers.

Step11
Turn the switch box from A to B (or whatever designation the box uses) to make your different computers appear on the monitor.

Do u know that we can control our PC remotely from some other location using Software. You may think only computer expert can do it. Here I will tell you. Remoter control is so easy, even cave man can do it. We must thank Germany company Teamviewer which has such good software free for personal use.

Things You’ll Need:

* computer
* and remote computer
* Teamviewer 3.0 full version

Here is a step by step instruction how to remote control a PC.

Step 1: It is very easy to use this software. "Teamviewer 3.0". You need to go to "www.teamviewer.com" to download the software. It is free for personal use. You can download for WIN or Mac. Use full version and you can have more fun with this software.

Step2
It is too easy to be true for using this software. You just install this software, and run it. It is also too good to be true for free personal using.

Step3
When Two computer need to communicate, you just install this software into both computer. When you run this program, each computer will have ID, and password. Through this ID and password, you can remote each other. You can use PC remote PC, PC to Mac, Mac to PC, and Mac to Mac.
It is just too good to be true this is free and work in both system.

Step4
There are more function in this remote software. I will strong recommend any one to try it.

Step5
BTW, here is some thing fun. I hook my desktop to a big screen TV. I use my laptop to remote control my desktop like TV remote. So I can watch online movie on my big TV and use my laptop do my work at the same time.

Step6
This is really great freeware. I would like to spread the word for them. If you feel the same way as me. I would like all of you to spread a word about this software to your friends and ask them to try this.

Have fun using this software.

To find the MAC address in Windows

* Go to the DOS prompt
o Click on Start button, select Run
o Type cmd and press ENTER
* In the DOS prompt, type ipconfig /all and press ENTER
You should see the MAC address in this format 00:00:00:00:00:00

To find the MAC address in Unix/Linux

* Go to a terminal (you should know how!)
* In the terminal, type ifconfig and press ENTER
You should see the MAC address in this format 00:00:00:00:00:00 following HWaddr

No organization, corporation or government owns or runs the Internet. Instead, many people and organizations voluntarily participate in task force groups who meet to develop standards for the many various technical needs of running the Internet. Decisions are made by consensus among all who choose to participate, and every point of view is heard in the long process of hashing out decisions and setting new standards.

The equipment--the computers, the cables, the routers, and so on are owned by government and private organizations and are paid for by taxes and user fees. In the early history of the Internet, the US government paid for many of the development and operating costs through government grants. In recent years, the US government has stepped aside except for the portions that link government organizations and let private enterprise develop the nets.

The Internet Protocol makes it possible for you to communicate in various ways, find things that interest you, and exchange information and files. The most common things you can do are:

    * Get information on almost any subject by searching the web. It takes some skill to search efficiently, and since anyone can publish just about anything, there is lots of misinformation on the web, too. You need to develop some skill in evaluating the accuracy and reliability of the information you find.

    * Send and receive email or chat or exchange messages with people all over the world. Almost as fast as the telephone, there is never a busy signal, and you never play phone tag.

    * Join discussion groups about a common subject with message boards, Newsgroups and email discussion lists.

    * Get or exchange software and files with the File Transfer Protocol (FTP)

    * Explore the World Wide Web, which can use all of the above, and adds easy links to other resources and adds multimedia--graphics, sound, and video capabilities.

    * Publish your own material on the web in blogs, message boards, or your own web pages.

The Internet is a vast network that connects many independent networks spanning over 170 countries in the World. It links computers of many different types, sizes, and operating systems, and, of course, the many people of those countries that use the Internet to communicate.

The one thing all these different computers have in common is the use of the Internet Protocol, abbreviated as IP, which allows computers of different types to communicate with each other. You will often see reference to the longer abbreviation, TCP/IP, which stands for Transmission Control Protocol/Internet Protocol. Your own computer uses TCP/IP software to enable it to link to this service.

In using a proxy server (for example, anonymizing HTTP proxy), all data sent to the service being used (for example, HTTP server in a website) must pass through the proxy server before being sent to the service, mostly in unencrypted form. It is therefore possible, and has been demonstrated, for a malicious proxy server to record everything sent to the proxy: including unencrypted logins and passwords.

By chaining proxies which do not reveal data about the original requester, it is possible to obfuscate activities from the eyes of the user's destination. However, more traces will be left on the intermediate hops, which could be used or offered up to trace the user's activities. If the policies and administrators of these other proxies are unknown, the user may fall victim to a false sense of security just because those details are out of sight and mind.

The bottom line of this is to be wary when using proxy servers, and only use proxy servers of known integrity (e.g., the owner is known and trusted, has a clear privacy policy, etc.), and never use proxy servers of unknown integrity. If there is no choice but to use unknown proxy servers, do not pass any private information (unless it is properly encrypted) through the proxy.

There are two methods to assigning IP addresses to computers: dynamic and static.

Static IP addresses are used primarily for servers so that they don't appear to "move" while non-servers are usually assigned dynamic IP addresses. Most dynamic IP address users are users of internet service providers (ISPs) since not all the users of an ISP are online at one time and the ISPs can "get away" with not having enough IP addresses for each user.

In order to use a dynamic IP address, a service such as Dynamic Host Configuration Protocol (DHCP) is used to assign addresses dynamically to devices as they request them. If a static address is used, it must be manually programmed into parameters of the device's network interface. (It is also possible to "fake" static IP address assignments through DHCP by assigning the same IP address to a computer — and no other — each time it is requested.)

A name is a label that is used to distinguish one thing from another. A person’s name, for instance, comprises a set of alphabetic characters that allows a person to be individually addressed. Computers are also named to differentiate one machine from another and to allow for such activities as network communication.

Computers have always needed unique addresses to talk to each other. With the advent of the Internet, the requirements for enabling computers to communicate with each other on a network included the concept of the hostname. The hostname began as a simple string of alphanumeric characters (and possibly a hyphen) and has evolved to its current definition, where hostname means a Fully Qualified Domain Name (FQDN) that absolutely and uniquely identifies every computer hooked up to the Internet via the Domain Name Service (DNS) naming hierarchy.

The true “name” a computer needs in order to communicate on a network is actually a set of numbers. The original computers connected as the Internet used small integers as the host number. For TCP/IP, the main protocol used by the Internet, each computer has a network IP address that follows a specific set of rules to assure its uniqueness and validity. (Additionally, port numbers further specify the access points for particular services on a computer).

It has always been user friendly to associate a host name with a computer (while the computer maintained its internal numerical host number or network address). One of the initial Internet RFCs, “Standardization of Host Mnemonics” lists the table that associated host numbers with their corresponding host names for the first Internet computers. This table was kept in a file called HOST.TXT that was stored on every computer that wished to communicate.

While the original file was not so daunting at 20 entries, it became quickly apparent that this solution was not scalable or flexible enough as the number of host computers connected to the Internet exploded. In order to accommodate the problem of connecting all of the new computers being added to the Internet, a hierarchical database of host names was created called DNS. DNS associates host names with their IP addresses. A complete domain name (that is, an FQDN) includes the name of the host concatenated with its domain name. This naming convention allows for a hierarchy of domain names with the host name being the most specific (and “left-most”) part.

The rules for a host name were first standardized in the original host name specification, “DoD Internet Host Table Specification”. It states that the name should be a text string consisting of the letters A through Z (upper or lower case), digits 0 through 9, the minus sign (-), and the period (.). Note, the period is only allowed as the last character of the host name if it is the delimiter of the full domain name (FQDN). No spaces are permitted as part of a name. The first character must be an alphabetic character and the last character must not be a minus sign or period. It was also recommended that the host name be no longer than 24 characters in length. Subsequently, in "Requirements for Internet Hosts - Application and Support", the host name rules were updated. The first character could now be either a letter or a digit and software dealing with host names must handle names up to 63 characters in length.

In common usage today, hostname refers specifically to the FQDN that comprises the name of the host, a period, and the domain name. The domain name is composed of labels that begin with the top-level domain and are arranged right to left for the second and, possibly, third level labels. The host name and the domain labels are separated by periods. The total length of the hostname as an FQDN cannot exceed 255 character with each domain name label having a maximum length of 63 characters. For example, if a company’s domain name is “example.com.” and a particular computer in the company has been named “plato”, the hostname for that computer will be “plato.example.com.”. Note, that technically FQDNs end in a period to unambiguously define the hostname and to be sure that it is not part of a longer domain name. (although in common usage this final period is often omitted).

The exact rules for the new hostname definition that has evolved is also more rigorous than that of the related original host name specification. The DNS naming rules are explained in “Domain Names – Concepts and Facilities”, “Domain Names – Implementation and Specification”, and “Clarifications to the DNS Specification”.

To summarize, a hostname is a Fully Qualified Domain Name that uniquely and absolutely names a computer. It is composed of the host name and the domain name. The domain name in turn is one or more domain labels that place the computer in the DNS naming hierarchy. The host name and the domain name labels are separated by periods and the total length of the hostname cannot exceed 255 characters.

Now that the syntax of the name of the host as part of the hostname is understood, how does one choose a good name for their computer? Several web sites offer suggestions and the choice is up to the system administrator whose whimsy is only limited to the fact that no two computers in one domain space can have the same host name (because the two computers would have the same hostname!).

RFC 1178, “Choosing a Name for Your Computer” contains several guidelines on how to name—and how not to name—your computers.

A summary of sample guidelines for good host names:

• Use words/names that are rarely used.
• Use theme names.
• Use real words.
• Don't worry about reusing someone else's hostname.
• There is always room for an exception.

And some sample guidelines for not so good host names:

• Don't overload other terms already in common use.
• Don't choose a name after a project unique to that machine.
• Don't use your own name.
• Don't use long names.
• Avoid alternate spellings.
• Avoid domain names.
• Avoid domain-like names.
• Don't use antagonistic or otherwise embarrassing names.
• Don't use digits at the beginning of the name.
• Don't use non-alphanumeric characters in a name.
• Don't expect case to be preserved

As a final note, the terms “host name” and “hostname” are often used interchangeably, so be sure to clarify when the term is being used as to whether just the name of the host or the computer’s FQDN is being referenced. To see this on a Linux system, by example, the hostname command returns the FQDN while adding the –s option (i.e., hostname –s) returns just the name of the host.

A proxy server is a computer that offers a computer network service to allow clients to make indirect network connections to other network services. A client connects to the proxy server, then requests a connection, file, or other resource available on a different server. The proxy provides the resource either by connecting to the specified server or by serving it from a cache. In some cases, the proxy may alter the client's request or the server's response for various purposes.

Web proxies

A common proxy application is a caching Web proxy. This provides a nearby cache of Web pages and files available on remote Web servers, allowing local network clients to access them more quickly or reliably.

When it receives a request for a Web resource (specified by a URL), a caching proxy looks for the resulting URL in its local cache. If found, it returns the document immediately. Otherwise it fetches it from the remote server, returns it to the requester and saves a copy in the cache. The cache usually uses an expiry algorithm to remove documents from the cache, according to their age, size, and access history. Two simple cache algorithms are Least Recently Used (LRU) and Least Frequently Used (LFU). LRU removes the least-recently used documents, and LFU removes the least-frequently used documents.

Web proxies can also filter the content of Web pages served. Some censorware applications — which attempt to block offensive Web content — are implemented as Web proxies. Other web proxies reformat web pages for a specific purpose or audience; for example, Skweezer reformats web pages for cell phones and PDAs. Network operators can also deploy proxies to intercept computer viruses and other hostile content served from remote Web pages.

A special case of web proxies are "CGI proxies." These are web sites which allow a user to access a site through them. They generally use PHP or CGI to implement the proxying functionality. CGI proxies are frequently used to gain access to web sites blocked by corporate or school proxies. Since they also hide the user's own IP address from the web sites they access through the proxy, they are sometimes also used to gain a degree of anonymity.

You may see references to four different types of proxy servers:

• Transparent Proxy - This type of proxy server identifies itself as a proxy server and also makes the original IP address available through the http headers. These are generally used for their ability to cache websites and do not effectively provide any anonymity to those who use them. However, the use of a transparent proxy will get you around simple IP bans. They are transparent in the terms that your IP address is exposed, not transparent in the terms that you do not know that you are using it (your system is not specifically configured to use it.)

• Anonymous Proxy - This type of proxy server identifies itself as a proxy server, but does not make the original IP address available. This type of proxy server is detectable, but provides reasonable anonymity for most users.

• Distorting Proxy - This type of proxy server identifies itself as a proxy server, but make an incorrect original IP address available through the http headers.

• High Anonymity Proxy - This type of proxy server does not identify itself as a proxy server and does not make available the original IP address.

Every device connected to the public Internet is assigned a unique number known as an Internet Protocol (IP) address. IP addresses consist of four numbers separated by periods (also called a 'dotted-quad') and look something like 127.0.0.1.

Since these numbers are usually assigned to internet service providers within region-based blocks, an IP address can often be used to identify the region or country from which a computer is connecting to the Internet. An IP address can sometimes be used to show the user's general location.

Because the numbers may be tedious to deal with, an IP address may also be assigned to a Host name, which is sometimes easier to remember. Hostnames may be looked up to find IP addresses, and vice-versa. At one time ISPs issued one IP address to each user. These are called static IP addresses. Because there is a limited number of IP addresses and with increased usage of the internet ISPs now issue IP addresses in a dynamic fashion out of a pool of IP addresses (Using DHCP). These are referred to as dynamic IP addresses. This also limits the ability of the user to host websites, mail servers, ftp servers, etc. In addition to users connecting to the internet, with virtual hosting, a single machine can act like multiple machines (with multiple domain names and IP addresses).

Basically, they all fall under the generally category of "viruses".
However, there are a few distinctions.

Virus - Technically, a virus infects another file (attaches or inserts
itself into it). They usually infect program files or MS Office
documents. From there, it can replicate, do damage, etc. Unlike a worm,
these do not function as a stand alone (except possibly to infect a
given file).

Worm - This is almost identical to a "true virus", except that it lives
on its own and generally doesn't infect other files (although it can
replace them). Usually, these copy themselves using e-mail, networks,
disks, etc. Again, these are very close to a true virus, and can do the
same kind of damage.

Trojan Horse - This type of program doesn't copy itself but does do
damage to your computer. These types of programs rely on people to pass
them around and to run them. They do not e-mail themselves. The idea is
to make the program look like it's something harmless, like a screen
saver or joke, so it gets sent around.

1. MONITOR LED IS BLINKING
Check all the connections like Monitor Cable, Data cables,RAM, Display Card , CPU connections.

2. CONTINUOS THREE BEEPS
Problem in RAM Connection.

3. THREE BEEPS ( 1 Long 2 Short)
Problem in Display Card Connection

4. THREE LONG BEEPS PERIOD WISE
Problem in BIOS or RAM (Basic Input Output System)

5. CONTINUOS NON-STOP BEEPING
Key Board Problem (I.e.; Some Key is pressed for Longer time)

6. FDD LED IS GLOWING CONTINUOSLY
Data cable to be connected properly (twisted cable).

7. NO DISPLAY ON THE SCREEN AT ALL
Hard Disk cable connected wrongly. Connect rightly seeing the Red mark (Faces power supply) and then Restart.

8. POWER LED IS OFF
a. Check main power cord
b. Check S.M.P.S.
c. Check Mother Board connection

9. SHOWING CMOS ERROR
Replace 3 Volt battery of Mother Board . Set Original Settings Manually.(Refer CMOS Setup chart)
Enter your search termsSubmit search form

10. SHOWING FDD ERROR OR FLOPPY DRIVE IS NOT WORKING PROPERLY
Check Power cord of FDD , Data Cables , set CMOS & Finally the Check drive.

11. SHOWING HDD ERROR OR HARD DISK FAILURE
a. Check Power Cord
b. Check connection of HDD
c. Check Data cable
d. Check Hard Disk parameters in CMOS or Auto detecting Setting Partitions by Fdisk Command, then format it to set track 0.

12. MOTHER BOARD HANGS DUE TO UNSTABILIZED POWER SUPPLY
a. Check S.M.P.S
b. RAM not functioning properly.
c. Software problem (due to using pirated software)
d. CPU fan not functioning properly.

13. DANCING SCREEN
a. Check Display card connection
b. Virus Problem
c. Video Memory Problem

14. SHAKING SCREEN
a. Earthing problem
b. Magnetic waves comes around.

15. CPU CABINET SHOCK
a. Check Earthing
b. Check main power cord.

16. NON-SYSTEM DISK ERROR
a. Floppy Drive having different disk (Non-Bootable Disk) OR CMOS Parameters for Hard Disk may not be set properly.
b. Hard Disk Partitions may not be created.
c. Hard Disk may not be formatted.

7. MISSING OPERATING SYSTEM
The System files missing namely Ie; command.com} - User File IO.SYS & MS_DOS.SYS } - Hidden Files. These above three files required for Start up of the system that can be transferred by using SYS C: Command OR While the time of formatting by using Format c:/u/s

18. MISSING COMMAND INTERPRETOR
May the file Command.com is corrupted OR Infected by Virus OR Some one has Erased it.

19. SHOWING I/O ERROR
a. The type of Hard Disk in CMOS may not be set properly.
b. Operating system used for formatting is not valid

20. SHOWING DIVIDE OVER- FLOW MESSAGE
a. May some Directories or Files crash with other files.
b. Use CHKDSK/F or SCANDISK Command to correct it.


21. HARD DISK MAKING NOISE WHILE PROCESSING
a. Unstabilized power supply.
b. Check for Loose Contact.
c. Do not use Y Connectors for Hard Disk.
d. It may create Bad Sector OR Weak Hard Disk.

22. HARD DISK HANGS WHILE PROCESSING
Check for Bad Sector by using CHKDSK or SCANDISK Command. If found format the Hard Disk and set Partition before that area.(This is the only procedure to use Hard Disk with Bad Sector) OR (To avoid Bad Sectors use Standard Power Supply)

23. HARD DISK NOT DETECTED
a. Check Power Connector
b. Check Data Cables
c. Check Jumpers

24. PARTITION NOT SHOWN
Operating System where the Hard Disk formatted is not supported with present Mother Board. For Eg: Hard Disk formatted with Pentium System will hide their partitions for 486 System.

25. MMX/DLL FILE MISSING
May the above files may be corrupted due to power failure or Virus. Make available above files from other Computer. OR Reinstall Windows 98 Operating System. (This procedure will not make any effect on existing Data).

26. WINDOWS REGISTRY ERROR
This will happen due to sudden ON/OFF of the system. Final solution is to Reinstall Operating System.

27. DISPLAY COLOUR DOES NOT MATCH
a. Configure Display Card properly with their CD.
b. The Standard setting for Windows is set it to 800x600 for better performance.

28. UNKNOWN DEVICE FOUND
May the Driver utility is not provided with operating system . Insert Driver CD and install software for the above Device. (Every Device requires driver utility to set active