The Tricks

12 Type Of Servers And What They Do!

1. Real-Time Communication Servers

Also known as chat servers or IRC, and
sometimes known as instant messaging (IM)
servers, these servers are meant to allow huge
number users to exchange information
instantly.

2. FTP Servers

This is one of the oldest of the Internet
services available. The FTP or File Transfer
Protocol allows the users to securely transfer
one or more files of any size between two
computers.

3. Collaboration Servers

In many ways, collaboration software, once
called 'groupware,' demonstrates the original
power of the Web. Collaboration software
designed to enable users to collaborate,
regardless of location, via the Internet or a
corporate intranet and to work together in a
virtual atmosphere.

How do you know your computer is infected?

Unfortunately, there is no particular way to identify that your computer has been infected with malicious code. Some infections may completely destroy files and shut down your computer, while others may only subtly affect your computer's normal operations. Be aware of any unusual or unexpected behaviours. If you are running anti-virus software, it may alert you that it has found malicious code on your computer. The anti-virus software may be able to clean the malicious code automatically, but if it can't, you will need to take additional steps.

What can you do if you are infected?

Minimize the damage - If you are at work and have access to an IT department, contact them immediately. The sooner they can investigate and clean your computer, the less damage to your computer and other computers on the network. If you are on your home computer or a laptop, disconnect your computer from the internet. By removing the internet connection, you prevent an attacker or virus from being able to access your computer and perform tasks such as locating personal data, manipulating or deleting files, or using your computer to attack other computers.

Remove the malicious code - If you have anti-virus software installed on your computer, update the virus definitions (if possible), and perform a manual scan of your entire system. If you do not have anti-virus software, you can purchase it at a local computer store . If the software can't locate and remove the infection, you may need to reinstall your operating system, usually with a system restore disk that is often supplied with a new computer. Note that reinstalling or restoring the operating system typically erases all of your files and any additional software that you have installed on your computer. After reinstalling the operating system and any other software, install all of the appropriate patches to fix known vulnerabilities.

How can you reduce the risk of another infection?

Dealing with the presence of malicious code on your computer can be a frustrating experience that can cost you time, money, and data. The following recommendations will build your defence against future infections:

Use and maintain Anti-virus software - Anti-virus software recognizes and protects your computer against most known viruses. However, attackers are continually writing new viruses, so it is important to keep your anti-virus software current .

Change your passwords - Your original passwords may have been compromised during the infection, so you should change them. This includes passwords for web sites that may have been cached in your browser. Make the passwords difficult for attackers to guess .

Keep software up to date - Install software patches so that attackers can't take advantage of known problems or vulnerabilities . Many operating systems offer automatic updates. If this option is available, you should enable it.

Install or enable a firewall - Firewalls may be able to prevent some types of infection by blocking malicious traffic before it can enter your computer . Some operating systems actually include a firewall, but you need to make sure it is enabled.

Use anti-spyware tools - Spyware is a common source of viruses, but you can minimize the number of infections by using a legitimate program that identifies and removes spyware .

Follow good security practices - Take appropriate precautions when using email and web browsers so that you reduce the risk that your actions will trigger an infection .

          Ray Tomlinson, widely credited as the creator of email, has died, his employer Raytheon, told CNN on Sunday. He was 74.
          Tomlinson invented direct email messages in 1971. Before his invention, electronic messages could be shared only on a very limited network.
          Among those paying tribute was Gmail, one of many offshoots of Tomlinson's creation."Thank you, Ray Tomlinson, for inventing email and putting the @ sign on the map," Gmail's Twitter account said.

History of hacking

Hacking has been around for more than a century. In the 1870s, several teenagers were flung off the country's brand new phone system by enraged authorities. Here's a peek at how busy hackers have been in the past 35 years.

Early 1960s

University facilities with huge mainframe computers, like MIT's artificial intelligence lab, become staging grounds for hackers. At first, "hacker" was a positive term for a person with a mastery of computers who could push programs beyond what they were designed to do.

Early 1970s

John Draper John Draper makes a long-distance call for free by blowing a precise tone into a telephone that tells the phone system to open a line. Draper discovered the whistle as a give-away in a box of children's cereal. Draper, who later earns the handle "Captain Crunch," is arrested repeatedly for phone tampering throughout the 1970s.

Yippie social movement starts YIPL/TAP (Youth International Party Line/Technical Assistance Program) magazine to help phone hackers (called "phreaks") make free long-distance calls.

Two members of California's Homebrew Computer Club begin making "blue boxes," devices used to hack into the phone system. The members, who adopt handles "Berkeley Blue" (Steve Jobs) and "Oak Toebark" (Steve Wozniak), later go on to found Apple Computer.

Early 1980s

Author William Gibson coins the term "cyberspace" in a science fiction novel called Neuromancer.

In one of the first arrests of hackers, the FBI busts the Milwaukee-based 414s (named after the local area code) after members are accused of 60 computer break-ins ranging from Memorial Sloan-Kettering Cancer Center to Los Alamos National Laboratory.

Comprehensive Crime Control Act gives Secret Service jurisdiction over credit card and computer fraud.

Two hacker groups form, the Legion of Doom in the United States and the Chaos Computer Club in Germany.

2600: The Hacker Quarterly is founded to share tips on phone and computer hacking.

Late 1980s

The Computer Fraud and Abuse Act gives more clout to federal authorities.

Computer Emergency Response Team is formed by U.S. defense agencies. Based at Carnegie Mellon University in Pittsburgh, its mission is to investigate the growing volume of attacks on computer networks.

At 25, veteran hacker Kevin Mitnick secretly monitors the e-mail of MCI and Digital Equipment security officials. He is convicted of damaging computers and stealing software and is sentenced to one year in prison.

First National Bank of Chicago is the victim of a $70-million computer heist.

An Indiana hacker known as "Fry Guy" -- so named for hacking McDonald's -- is raided by law enforcement. A similar sweep occurs in Atlanta for Legion of Doom hackers known by the handles "Prophet," "Leftist" and "Urvile."

Early 1990s

After AT&T long-distance service crashes on Martin Luther King Jr. Day, law enforcement starts a national crackdown on hackers. The feds nab St. Louis' "Knight Lightning" and in New York grab Masters of Deception trio "Phiber Optik," " Acid Phreak" and "Scorpion." Fellow hacker "Eric Bloodaxe" is picked up in Austin, Texas.

Operation Sundevil, a special team of Secret Service agents and members of Arizona's organized crime unit, conducts raids in 12 major cities, including Miami.

A 17-month search ends in the capture of hacker Kevin Lee Poulsen ("Dark Dante"), who is indicted for stealing military documents.

Hackers break into Griffith Air Force Base, then pewwwte computers at NASA and the Korean Atomic Research Institute. Scotland Yard nabs "Data Stream," a 16-year-old British teenager who curls up in the fetal position when seized.

A Texas A&M professor receives death threats after a hacker logs on to his computer from off-campus and sends 20,000 racist e-mail messages using his Internet address.

Kevin Mitnick [photo / AP ]In a highly publicized case, Kevin Mitnick is arrested (again), this time in Raleigh, N.C., after he is tracked down via computer by Tsutomu Shimomura at the San Diego Supercomputer Center.

Late 1990s

Hackers break into and deface federal Web sites, including the U.S. Department of Justice, U.S. Air Force, CIA, NASA and others.

Report by the General Accounting Office finds Defense Department computers sustained 250,000 attacks by hackers in 1995 alone.

A Canadian hacker group called the Brotherhood, angry at hackers being falsely accused of electronically stalking a Canadian family, break into the Canadian Broadcasting Corp. Web site and leave message: "The media are liars." Family's own 15-year-old son eventually is identified as stalking culprit.

Hackers pierce security in Microsoft's NT operating system to illustrate its weaknesses.

Popular Internet search engine Yahoo! is hit by hackers claiming a "logic bomb" will go off in the PCs of Yahoo!'s users on Christmas Day 1997 unless Kevin Mitnick is released from prison. "There is no virus," Yahoo! spokeswoman Diane Hunt said.

1998

Anti-hacker ad runs during Super Bowl XXXII. The Network Associates ad, costing $1.3-million for 30 seconds, shows two Russian missile silo crewmen worrying that a computer order to launch missiles may have come from a hacker. They decide to blow up the world anyway.

In January, the federal Bureau of Labor Statistics is inundated for days with hundreds of thousands of fake information requests, a hacker attack called "spamming."

Hackers break into United Nation's Children Fund Web site, threatening a "holocaust" if Kevin Mitnick is not freed.

Hackers claim to have broken into a Pentagon network and stolen software for a military satellite system. They threaten to sell the software to terrorists.

The U.S. Justice Department unveils National Infrastructure Protection Center, which is given a mission to protect the nation's telecommunications, technology and transportation systems from hackers.

Hacker group L0pht, in testimony before Congress, warns it could shut down nationwide access to the Internet in less than 30 minutes. The group urges stronger security measures.

7 Tools for every Hacker

This tools are most important in every hacker, network penetrator's life. They must need these tools.

1. Nmap :- For network exploration

Nmap logo

Nmap ("Network Mapper") is a free and open source utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. It was designed to rapidly scan large networks, but works fine against single hosts. Nmap runs on all major computer operating systems, and official binary packages are available for Linux, Windows, and Mac OS X. In addition to the classic command-line Nmap executable, the Nmap suite includes an advanced GUI and results viewer, a flexible data transfer, redirection, and debugging tool, a utility for comparing scan results, and a packet generation and response analysis tool.

2. Nessus Remote Security Scanner :- Vulnerability scanner

Nessus logo

Nessus is a remote security scanning tool, which scans a computer and raises an alert if it discovers any vulnerabilities that malicious hackers could use to gain access to any computer you have connected to a network. It does this by running over 1200 checks on a given computer, testing to see if any of these attacks could be used to break into the computer or otherwise harm it.

3. Wireshark :- Sniffer

Wireshark logo

Wireshark is the world's foremost network protocol analyzer. It lets you see what's happening on your network at a microscopic level. It is the de facto (and often de jure) standard across many industries and educational institutions.

Wireshark development thrives thanks to the contributions of networking experts across the globe. It is the continuation of a project that started in 1998.

Internet

Internet is a world-wide/global system of interconnected computer networks.
Internet uses the standard Internet Protocol (TCP/IP)
Every computer in internet is identified by a unique IP address.
IP Address is a unique set of numbers (such as 110.22.33.114) which identifies a computer location.
A special computer DNS (Domain Name Server) is used to give name to the IP Address so that user can locate a computer by a name.
For example, a DNS server will resolve a name http://thetrick.blogspot.com to a particular IP address to uniquely identify the computer on which this website is hosted.
Internet is accessible to every user all over the world.

Intranet

Intranet is system in which multiple PCs are networked to be connected to each other.
PCs in intranet are not available to the world outside of the intranet.
Usually each company or organization has their own Intranet network and members/employees of that company can access the computers in their intranet.
Each computer in Intranet is also identified by a IP Address, which is unique among the computers in that Intranet.

Similarities in Internet & Intranet

Intranet uses the internet protocols such as TCP/IP and FTP.
Intranet sites are accessible via web browser in similar way as websites in internet. But only members of Intranet network can access intranet hosted sites.
In Intranet, own instant messengers can be used as similar to yahoo messenger/gtalk over the internet.

Differences in Internet & Intranet

Internet is general to PCs all over the world where Intranet is specific to few PCs.
Internet is wider access and provides a better access to websites to large population whereas Intranet is restricted.
Internet is not as safe as Intranet as Intranet can be safely privatized as per the need.

We know that youtube is the biggest online video network. But we can not download videos from the youtube. but now you can use this trick to download videos from youtube.

This method is very easy and any one can use without using any software. You can download any video from youtube in various formats you can also convert it to the .mp3. Follow the simple steps as below:-

Tricks To Clean All Temporary Files,Cookies,Temporary Internet Files
Just use notepad....

Step 1:
Start with making a new txt file.

Awesome & Simple VLC Media Player Trick

this is the simple and funny trick by using VLC media player. To do this trick follow this simple steps as bellow

1. Open Vlc Media Player.

2. Then Press Cltr + N
3. Now Type "Screen://" (without quotes)
4. Click on Play and watch this simple little trick.

20 Things You Didn't Know About Computer Hacking :-
----------------------------------------------------------------------------

1 Hacker originally meant “one who makes furniture with an ax.” Perhaps because of the blunt nature of that approach, the word came to mean someone who takes pleasure in an unconventional solution to a technical obstacle.

2 Computer hacking was born in the late 1950s, when members of MIT’s Tech Model Railroad Club, obsessed with electric switching, began preparing punch cards to control an IBM 704 mainframe.

3 One of the club’s early programs: code that illuminated lights on the mainframe’s console, making it look like a ball was zipping from left to right, then right to left with the flip of a switch. Voilà: computer Ping-Pong!

4 By the early 1970s, hacker “Cap’n Crunch” (a.k.a. John Draper) had used a toy whistle to match the 2,600-hertz tone used by AT&T’s long-distance switching system. This gave him access to call routing (and brief access to jail).

5 Before they struck it rich, Apple founders Steve Wozniak and Steve Jobs made and sold “blue boxes,” electronic versions of Draper’s whistle.

An A-Z Index of the Windows CMD command line

Here is nearly all the A to Z cmd commands.

To open the command prompt use shortcut key i.e. win key + R

GOTO start menu >> all programs >> Accessories >> command prompt

A

ADDUSERS :- Add or list users to/from a CSV file
ADmodcmd :- Active Directory Bulk Modify
ARP :- Address Resolution Protocol
ASSOC :- Change file extension associations•
ASSOCIAT :- One step file association
AT :- Schedule a command to run at a specific time
ATTRIB :- Change file attributes

B

BCDBOOT :- Create or repair a system partition
BCDEDIT :- Manage Boot Configuration Data
BITSADMIN :- Background Intelligent Transfer Service
BOOTCFG :- Edit Windows boot settings
BROWSTAT :- Get domain, browser and PDC info

C

CACLS :- Change file permissions
CALL :- Call one batch program from another•
CERTREQ :- Request certificate from a certification authority
CERTUTIL :- Utility for certification authority (CA) files and services
CD :- Change Directory - move to a specific Folder•
CHANGE :- Change Terminal Server Session properties
CHKDSK :- Check Disk - check and repair disk problems
CHKNTFS :- Check the NTFS file system
CHOICE :- Accept keyboard input to a batch file
CIPHER :- Encrypt or Decrypt files/folders
CleanMgr :- Automated cleanup of Temp files, recycle bin
CLEARMEM :- Clear memory leaks
CLIP :- Copy STDIN to the Windows clipboard
CLS :- Clear the screen•
CLUSTER :- Windows Clustering
CMD :- Start a new CMD shell
CMDKEY :- Manage stored usernames/passwords
COLOR :- Change colors of the CMD window•
COMP :- Compare the contents of two files or sets of files
COMPACT :- Compress files or folders on an NTFS partition
COMPRESS :- Compress one or more files
CON2PRT :- Connect or disconnect a Printer
CONVERT :- Convert a FAT drive to NTFS
COPY :- Copy one or more files to another location•
CSCcmd :- Client-side caching (Offline Files)
CSVDE :- Import or Export Active Directory data

10 reasons why PCs crash you must Know

Fatal error: the system has become unstable or is busy," it says. "Enter to return to Windows or press Control-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications."
You have just been struck by the Blue Screen of Death. Anyone who uses Microsoft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening?

1 Hardware conflict

The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device.

For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself.

If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ number. When the user tries to use both devices at the same time, a crash can happen. The way to check if your computer has a hardware conflict is through the following route:

* Start-Settings-Control Panel-System-Device Manager.

Often if a device has a problem a yellow '!' appears next to its description in the Device Manager. Highlight Computer (in the Device Manager) and press Properties to see the IRQ numbers used by your computer. If the IRQ number appears twice, two devices may be using it.

Sometimes a device might share an IRQ with something described as 'IRQ holder for PCI steering'. This can be ignored. The best way to fix this problem is to remove the problem device and reinstall it.

Sometimes you may have to find more recent drivers on the internet to make the device function properly. A good resource is www.driverguide.com. If the device is a soundcard, or a modem, it can often be fixed by moving it to a different slot on the motherboard (be careful about opening your computer, as you may void the warranty).

When working inside a computer you should switch it off, unplug the mains lead and touch an unpainted metal surface to discharge any static electricity.

To be fair to Mcft, the problem with IRQ numbers is not of its making. It is a legacy problem going back to the first PC designs using the IBM 8086 chip. Initially there were only eight IRQs. Today there are 16 IRQs in a PC. It is easy to run out of them. There are plans to increase the number of IRQs in future designs.

2 Bad Ram

Ram (random-access memory) problems might bring on the blue screen of death with a message saying Fatal Exception Error. A fatal error indicates a serious hardware problem. Sometimes it may mean a part is damaged and will need replacing.

But a fatal error caused by Ram might be caused by a mismatch of chips. For example, mixing 70-nanosecond (70ns) Ram with 60ns Ram will usually force the computer to run all the Ram at the slower speed. This will often crash the machine if the Ram is overworked.

One way around this problem is to enter the BIOS settings and increase the wait state of the Ram. This can make it more stable. Another way to troubleshoot a suspected Ram problem is to rearrange the Ram chips on the motherboard, or take some of them out. Then try to repeat the circumstances that caused the crash. When handling Ram try not to touch the gold connections, as they can be easily damaged.

Parity error messages also refer to Ram. Modern Ram chips are either parity (ECC) or non parity (non-ECC). It is best not to mix the two types, as this can be a cause of trouble.

EMM386 error messages refer to memory problems but may not be connected to bad Ram. This may be due to free memory problems often linked to old Dos-based programmes.

3 BIOS settings

Every motherboard is supplied with a range of chipset settings that are decided in the factory. A common way to access these settings is to press the F2 or delete button during the first few seconds of a boot-up.

Once inside the BIOS, great care should be taken. It is a good idea to write down on a piece of paper all the settings that appear on the screen. That way, if you change something and the computer becomes more unstable, you will know what settings to revert to.

A common BIOS error concerns the CAS latency. This refers to the Ram. Older EDO (extended data out) Ram has a CAS latency of 3. Newer SDRam has a CAS latency of 2. Setting the wrong figure can cause the Ram to lock up and freeze the computer's display.

Mcft Windows is better at allocating IRQ numbers than any BIOS. If possible set the IRQ numbers to Auto in the BIOS. This will allow Windows to allocate the IRQ numbers (make sure the BIOS setting for Plug and Play OS is switched to 'yes' to allow Windows to do this.).

4 Hard disk drives

After a few weeks, the information on a hard disk drive starts to become piecemeal or fragmented. It is a good idea to defragment the hard disk every week or so, to prevent the disk from causing a screen freeze. Go to

* Start-Programs-Accessories-System Tools-Disk Defragmenter

This will start the procedure. You will be unable to write data to the hard drive (to save it) while the disk is defragmenting, so it is a good idea to schedule the procedure for a period of inactivity using the Task Scheduler.

The Task Scheduler should be one of the small icons on the bottom right of the Windows opening page (the desktop).

Some lockups and screen freezes caused by hard disk problems can be solved by reducing the read-ahead optimisation. This can be adjusted by going to

* Start-Settings-Control Panel-System Icon-Performance-File System-Hard Disk.

Hard disks will slow down and crash if they are too full. Do some housekeeping on your hard drive every few months and free some space on it. Open the Windows folder on the C drive and find the Temporary Internet Files folder. Deleting the contents (not the folder) can free a lot of space.

Empty the Recycle Bin every week to free more space. Hard disk drives should be scanned every week for errors or bad sectors. Go to

* Start-Programs-Accessories-System Tools-ScanDisk

Otherwise assign the Task Scheduler to perform this operation at night when the computer is not in use.

5 Fatal OE exceptions and VXD errors

Fatal OE exception errors and VXD errors are often caused by video card problems.

These can often be resolved easily by reducing the resolution of the video display. Go to

* Start-Settings-Control Panel-Display-Settings

Here you should slide the screen area bar to the left. Take a look at the colour settings on the left of that window. For most desktops, high colour 16-bit depth is adequate.

If the screen freezes or you experience system lockups it might be due to the video card. Make sure it does not have a hardware conflict. Go to

* Start-Settings-Control Panel-System-Device Manager

Here, select the + beside Display Adapter. A line of text describing your video card should appear. Select it (make it blue) and press properties. Then select Resources and select each line in the window. Look for a message that says No Conflicts.

If you have video card hardware conflict, you will see it here. Be careful at this point and make a note of everything you do in case you make things worse.

The way to resolve a hardware conflict is to uncheck the Use Automatic Settings box and hit the Change Settings button. You are searching for a setting that will display a No Conflicts message.

Another useful way to resolve video problems is to go to

* Start-Settings-Control Panel-System-Performance-Graphics

Here you should move the Hardware Acceleration slider to the left. As ever, the most common cause of problems relating to graphics cards is old or faulty drivers (a driver is a small piece of software used by a computer to communicate with a device).

Look up your video card's manufacturer on the internet and search for the most recent drivers for it.

6 Viruses

Often the first sign of a virus infection is instability. Some viruses erase the boot sector of a hard drive, making it impossible to start. This is why it is a good idea to create a Windows start-up disk. Go to

* Start-Settings-Control Panel-Add/Remove Programs

Here, look for the Start Up Disk tab. Virus protection requires constant vigilance.

A virus scanner requires a list of virus signatures in order to be able to identify viruses. These signatures are stored in a DAT file. DAT files should be updated weekly from the website of your antivirus software manufacturer.

An excellent antivirus programme is McAfee VirusScan by Network Associates ( www.nai.com). Another is Norton AntiVirus 2000, made by Symantec ( www.symantec.com).

7 Printers

The action of sending a document to print creates a bigger file, often called a postscript file.

Printers have only a small amount of memory, called a buffer. This can be easily overloaded. Printing a document also uses a considerable amount of CPU power. This will also slow down the computer's performance.

If the printer is trying to print unusual characters, these might not be recognised, and can crash the computer. Sometimes printers will not recover from a crash because of confusion in the buffer. A good way to clear the buffer is to unplug the printer for ten seconds. Booting up from a powerless state, also called a cold boot, will restore the printer's default settings and you may be able to carry on.

8 Software

A common cause of computer crash is faulty or badly-installed software. Often the problem can be cured by uninstalling the software and then reinstalling it. Use Norton Uninstall or Uninstall Shield to remove an application from your system properly. This will also remove references to the programme in the System Registry and leaves the way clear for a completely fresh copy.

The System Registry can be corrupted by old references to obsolete software that you thought was uninstalled. Use Reg Cleaner by Jouni Vuorio to clean up the System Registry and remove obsolete entries. It works on Windows 95, Windows 98, Windows 98 SE (Second Edition), Windows Millennium Edition (ME), NT4 and Windows 2000.

Read the instructions and use it carefully so you don't do permanent damage to the Registry. If the Registry is damaged you will have to reinstall your operating system. Reg Cleaner can be obtained from www.jv16.org

Often a Windows problem can be resolved by entering Safe Mode. This can be done during start-up. When you see the message "Starting Windows" press F4. This should take you into Safe Mode.

Safe Mode loads a minimum of drivers. It allows you to find and fix problems that prevent Windows from loading properly.

Sometimes installing Windows is difficult because of unsuitable BIOS settings. If you keep getting SUWIN error messages (Windows setup) during the Windows installation, then try entering the BIOS and disabling the CPU internal cache. Try to disable the Level 2 (L2) cache if that doesn't work.

Remember to restore all the BIOS settings back to their former settings following installation.

9 Overheating

Central processing units (CPUs) are usually equipped with fans to keep them cool. If the fan fails or if the CPU gets old it may start to overheat and generate a particular kind of error called a kernel error. This is a common problem in chips that have been overclocked to operate at higher speeds than they are supposed to.

One remedy is to get a bigger better fan and install it on top of the CPU. Specialist cooling fans/heatsinks are available from www.computernerd.com or www.coolit.com

CPU problems can often be fixed by disabling the CPU internal cache in the BIOS. This will make the machine run more slowly, but it should also be more stable.

10 Power supply problems

With all the new construction going on around the country the steady supply of electricity has become disrupted. A power surge or spike can crash a computer as easily as a power cut.

If this has become a nuisance for you then consider buying a uninterrupted power supply (UPS). This will give you a clean power supply when there is electricity, and it will give you a few minutes to perform a controlled shutdown in case of a power cut.

It is a good investment if your data are critical, because a power cut will cause any unsaved data to be lost.

Today I am posting the interesting facts about computer. That facts you may not know ;-)

1. There are approx. 6,000 new computer viruses released every month.

2. Doug Engelbart, invented the first computer mouse in the year 1964 and it was made up of wood!

3. It is believed that the first computer virus released in the world was a boot sector virus, which was created in the year 1986 by Farooq Alvi brothers. It was designed by them to protect their research work.

4. A normal human being blinks 20 times in a minute, whereas a computer user blinks only 7 times a minute!

5. TYPEWRITER is the longest word that can be made using the letters only on one row of the keyboard.

6. While it took the radio 38 years, and the television a short 13 years, it took the World Wide Web only 4 years to reach 50 million users.

7. The first domain name ever registered was Symbolics.com.

8. On an average work day, a typist's fingers travel 12.6 miles.

9. The world's first computer, called the Z1, was invented by Konrad Zuse in 1936. His next invention, the Z2 was finished in 1939 and was the first fully functioning electro-mechanical computer.

10. Domain names are being registered at a rate of more than one million names every month.

11. The house of Bill Gates was designed using a Macintosh computer.

12. The group of 12 engineers who designed IBM PC were called "The Dirty Dozen".

13. One of the world's leading computer and computer peripheral manufacturer Hewlett Packard was first started in a garage at Palo Alto in the year 1939.

14. On eBay, there are an average of $680 worth of transactions each second.

15. Early hard drives in Personal Computers held 20 MB, or 20 Megabytes, and cost about $800. By comparison, an $8 flash drive holds 2 GB, or 2 Gigabytes. That's a 100-fold decrease in price and a 100-fold increase in capacity.

16. The computer mouse, the windowing GUI, laser printing, and the network card were all developed at one company; Xerox in Palo Alto, California.

17. The computer in your cell phone has more processing power than all the computers in the Apollo 11 Lunar Lander that put 2 men on the moon.

18. 'Crash Course' is another name for Microsoft Windows tutorials.

19. Although we normally think of computers as the ones we use in our everyday lives to surf the web, write documents etc, small computers are also embedded into other things such as mobile phones, toys, microwaves and MP3 players. We use computers all the time, often without even knowing it!

20. Almost all computer users must know how destructive a virus can be. But then, it would be interesting to know that a virus cannot corrupt your PC on its own. It corrupts your system only when you activate it by either downloading infected files from the Internet or by sharing these infected files. -

ONE WINDOWS MAGIC TRICK:-

Nobody can create a FOLDER anywhere on the computer which can be named as “CON” (without Quotes).
TRY IT NOW ,IT WILL NOT CREATE ” CON ” FOLDER

Actually CON is one of system reserved words, that's why it cant create CON Folder !!! ( even though u may can create other methods )

Nowadays, many programs take lots of memory during operation, which is a nightmare for low RAM systems. So to avoid this make your pen drive/USB of large size as RAM, which will allow your system to handle more operations and tasks. That allows you to boost your computer speed. It may increase your computer processing speed.
Now follow the simple steps in your windows 07.

Transcend 4GB DDR3L 1600 LAPTOP RAM

SanDisk Cruzer Blade SDCZ50-016G-I35 16 GB USB 2.0 Pen Drive

Insert your pen drive

Format it

Right click on your pen drive and click on "Properties".

Click on 'Ready boost' tab and then on 'Use this device'

Choose maximum space to reserve system speed and hit OK

Great! You're done! Now use your pen drive as RAM
enjoy!!!

hiii friends this post is related to the most useful run command used in the windows.

this is accessed by using short-cut key i.e.. windows key + R for more information about the short-cuts you can see my previous post windows short-cuts.

There are, however, tools and utilities that I bet you never knew you had that can be accessed through the Run feature. The main reason most people don't use the Run feature is because they don't know the Commands. So, to solve that problem, I decided to put together the following listing

To Access…	Run Command
Accessibility Controls	access.cpl
Accessibility Wizard	accwiz
Add Hardware Wizard	hdwwiz.cpl
Add/Remove Programs	appwiz.cpl
Administrative Tools	control admintools
Adobe Acrobat (if installed)	acrobat
Adobe Designer (if installed)	formdesigner
Adobe Distiller (if installed)	acrodist
Adobe ImageReady (if installed)	imageready
Adobe Photoshop (if installed)	photoshop
Automatic Updates	wuaucpl.cpl
Bluetooth Transfer Wizard	fsquirt
Calculator	calc
Certificate Manager	certmgr.msc
Character Map	charmap
Check Disk Utility	chkdsk
Clipboard Viewer	clipbrd
Command Prompt	cmd
Component Services	dcomcnfg
Computer Management	compmgmt.msc
Control Panel	control
Date and Time Properties	timedate.cpl
DDE Shares	ddeshare
Device Manager	devmgmt.msc
Direct X Control Panel (if installed)*	directx.cpl
Direct X Troubleshooter	dxdiag
Disk Cleanup Utility	cleanmgr
Disk Defragment	dfrg.msc
Disk Management	diskmgmt.msc
Disk Partition Manager	diskpart
Display Properties	control desktop
Display Properties	desk.cpl
Display Properties (w/Appearance Tab Preselected)	control color
Dr. Watson System Troubleshooting Utility	drwtsn32
Driver Verifier Utility	verifier
Event Viewer	eventvwr.msc
Files and Settings Transfer Tool	migwiz
File Signature Verification Tool	sigverif
Findfast	findfast.cpl
Firefox (if installed)	firefox
Folders Properties	folders
Fonts	control fonts
Fonts Folder	fonts
Free Cell Card Game	freecell
Game Controllers	joy.cpl
Group Policy Editor (XP Prof)	gpedit.msc
Hearts Card Game	mshearts
Help and Support	helpctr
HyperTerminal	hypertrm
Iexpress Wizard	iexpress
Indexing Service	ciadv.msc
Internet Connection Wizard	icwconn1
Internet Explorer	iexplore
Internet Properties	inetcpl.cpl
Internet Setup Wizard	inetwiz
IP Configuration (Display Connection Configuration)	ipconfig /all
IP Configuration (Display DNS Cache Contents)	ipconfig /displaydns
IP Configuration (Delete DNS Cache Contents)	ipconfig /flushdns
IP Configuration (Release All Connections)	ipconfig /release
IP Configuration (Renew All Connections)	ipconfig /renew
IP Configuration (Refreshes DHCP & Re-Registers DNS)	ipconfig /registerdns
IP Configuration (Display DHCP Class ID)	ipconfig /showclassid
IP Configuration (Modifies DHCP Class ID)	ipconfig /setclassid
Java Control Panel (if installed)	jpicpl32.cpl
Java Control Panel (if installed)	javaws
Keyboard Properties	control keyboard
Local Security Settings	secpol.msc
Local Users and Groups	lusrmgr.msc
Logs You Out Of Windows	logoff
Malicious Software Removal Tool	mrt
Microsoft Access (if installed)	msaccess
Microsoft Chat	winchat
Microsoft Excel (if installed)	excel
Microsoft Frontpage (if installed)	frontpg
Microsoft Movie Maker	moviemk
Microsoft Paint	mspaint
Microsoft Powerpoint (if installed)	powerpnt
Microsoft Word (if installed)	winword
Microsoft Syncronization Tool	mobsync
Minesweeper Game	winmine
Mouse Properties	control mouse
Mouse Properties	main.cpl
Nero (if installed)	nero
Netmeeting	conf
Network Connections	control netconnections
Network Connections	ncpa.cpl
Network Setup Wizard	netsetup.cpl
Notepad	notepad
Nview Desktop Manager (if installed)	nvtuicpl.cpl
Object Packager	packager
ODBC Data Source Administrator	odbccp32.cpl
On Screen Keyboard	osk
Opens AC3 Filter (if installed)	ac3filter.cpl
Outlook Express	msimn
Paint	pbrush
Password Properties	password.cpl
Performance Monitor	perfmon.msc
Performance Monitor	perfmon
Phone and Modem Options	telephon.cpl
Phone Dialer	dialer
Pinball Game	pinball
Power Configuration	powercfg.cpl
Printers and Faxes	control printers
Printers Folder	printers
Private Character Editor	eudcedit
Quicktime (If Installed)	QuickTime.cpl
Quicktime Player (if installed)	quicktimeplayer
Real Player (if installed)	realplay
Regional Settings	intl.cpl
Registry Editor	regedit
Registry Editor	regedit32
Remote Access Phonebook	rasphone
Remote Desktop	mstsc
Removable Storage	ntmsmgr.msc
Removable Storage Operator Requests	ntmsoprq.msc
Resultant Set of Policy (XP Prof)	rsop.msc
Scanners and Cameras	sticpl.cpl
Scheduled Tasks	control schedtasks
Security Center	wscui.cpl
Services	services.msc
Shared Folders	fsmgmt.msc
Shuts Down Windows	shutdown
Sounds and Audio	mmsys.cpl
Spider Solitare Card Game	spider
SQL Client Configuration	cliconfg
System Configuration Editor	sysedit
System Configuration Utility	msconfig
System File Checker Utility (Scan Immediately)	sfc /scannow
System File Checker Utility (Scan Once At The Next Boot)	sfc /scanonce
System File Checker Utility (Scan On Every Boot)	sfc /scanboot
System File Checker Utility (Return Scan Setting To Default)	sfc /revert
System File Checker Utility (Purge File Cache)	sfc /purgecache
System File Checker Utility (Sets Cache Size to size x)	sfc /cachesize=x
System Information	msinfo32
System Properties	sysdm.cpl
Task Manager	taskmgr
TCP Tester	tcptest
Telnet Client	telnet
Tweak UI (if installed)	tweakui
User Account Management	nusrmgr.cpl
Utility Manager	utilman
Windows Address Book	wab
Windows Address Book Import Utility	wabmig
Windows Backup Utility (if installed)	ntbackup
Windows Explorer	explorer
Windows Firewall	firewall.cpl
Windows Magnifier	magnify
Windows Management Infrastructure	wmimgmt.msc
Windows Media Player	wmplayer
Windows Messenger	msmsgs
Windows Picture Import Wizard (need camera connected)	wiaacmgr
Windows System Security Tool	syskey
Windows Update Launches	wupdmgr
Windows Version (to show which version of windows)	winver
Windows XP Tour Wizard	tourstart
Wordpad	write