The best tools for Windows LANs

August 30, 2010 No comments »

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A small, private network will be maintained as regularly as an office or a large corporate LAN. The search for errors or bottle necks is the custom. Small free tools to make the Windows board funds advanced functions. This allows you to remotely control computer,your Dell inspiron 1501 battery and monitor some or gain an overview of the data flow on the LAN.

In this updated article we present a collection of useful network utilities for Windows systems prior to you life easier. The tools were from our sister publication tecCHANNEL collected.

Wireshark: Traffic Monitoring Network

System managers set for fault diagnosis often a network sniffer, mitprotokollieren with the traffic. The sniffer collects transfer protocols and allows a bit-accurate analysis of the transmitted data. With sniffers can detect errors in the LAN, but also programs that secretly send data. Professionals to invest in a good packet sniffer be several hundred or thousand €. Administrators of small and medium-sized networks often come with more freeware sniffers.

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One of the few well-made free tools for evaluating the network traffic is Wireshark. The tool relies on the free WinPcap Capture Driver (http://battery-store.com.au), the setup is automatically downloaded and installed while. Winpcap hooks itself into the driver of a network adapter and ensures that all messages sent and received packets in a buffer are cached. It takes to Wireshark.

The software allows to analyze both the current data networking, and archived data to read from a log file. It can be details about each TCP / IP packet to bring to the screen. In addition, the sniffer on analysis and reporting capabilities and its own scripting language for filtering network packets. The only drawback to Ethereal is the complicated definition of the filters.

Alternative to Wireshark: In terms of equipment exceeds Colasoft Capsa , the free tool Wireshark only slightly, in terms of ease of use Capsa is significantly forward. The software can detect errors and identify the data fragments. An extensive set of individual Filtermechnismen with protocol rules support the administrator at work.

A-Toolbar: Fast Connection Control

The easiest way to check whether a website or server is running is accessible, using the ping command. With PING.EXE of Windows, you check the network connection to another station. Ping is thus particularly interesting for the fault diagnosis before, because it can not ping computer only himself but all the devices own IP address feature. Once a station does not respond to ping, all other network services work this remote does not. Either there is hardware malfunction in one, or the appropriate network settings are incorrect, or an understanding of different protocols is not possible due. For Web, FTP and news servers, you can ping out with whether the corresponding server is online at all.

More comfortable than with PING.EXE you use ping with the A-Toolbar. After starting the program, click on the round blue button, type in the address of the remote station to be checked in the “Host” and start the check of the Returnkey. In addition to Ping holds bar of choice AToolbar still a lot of other Internet and desktop tools provide the. Says program offers the example, port scanner, address lookup function, search engine mask, DNS lookup, Whois, Google Page Rank and link manager. With the desktop computer and inspiron 1520 battery for the search, you can mail and documents to investigate. The results shows the tool under “Result on Tabs. The starting block of the A-Toolbar settles on the taskbar on the desktop. You can minimize, if necessary, so that the familiar applications available for area.

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ARP and determine getmac : MacAddress and configure

August 26, 2010 No comments »

ARP and determine getmac : MacAddress and configure

ARP

The Address Resolution Protocol ARP takes over the implementation of the MAC address to an IP address. In the so -called ARP cache IP addresses are stored , which were already resolved in Mac addresses. ARP will not find it here , is a broadcast (broadcast ) sent to all the network accessible by computer and Dell inspiron 1545 battery to determine the MAC address for the requested IP address. The unit , which includes the requested IP address responds , and sends its MAC address. ARP carries out the requesting computer ’s IP address in the ARP cache, all requests to that machine will now be sent directly . After a reboot, all ARP messages are deleted – you do this with arp -d.

Arp -a displays the contents of the ARP cache. Arp -s IP address ” MAC address “creates a static entry . Arp /? shows all options. With arp -s IP ADDRESS MAC ADDRESS connects to the IP address with the MAC address. After a PC reboot but this entry is lost.

The use of the ARP protocol takes a specific security issue called ARP poisoning or ARP spoofing for themselves. This shows an attacker to an IP address a wrong MAC address and thus leads to questions.

Getmac : Mac -Address

Each network controller has a unique distinctive and not alterable MAC address (Media Access Control), which is essential for addressing the data packets on the Internet – the MAC address is now the physical address of your network card, which is usually in a fixed EEPROM Memory on the network card or the onboard LAN adapter in the BIOS chip is located . The MAC addresses are managed centrally , each address consists of twelve hexadecimal digits.

The well-known for IP addresses that are initially responsible for the addressing of the data packets are mapped to the MAC addresses. For every Internet communication has therefore to belonging to an IP address, MAC address to be sought. This is the address resolution ARP Procotol jurisdiction.

If you configure your network or router you often need the MAC addresses of your network adapter. To determine since Windows XP, Mac addresses ruckzuck Getmac.exe with the tool . That is, type in the command prompt and press Enter getmac . On Windows, there used the tool winipcfg . It is now not to all features of Windows, because its functionality through the further down command ipconfig / all is made available . You can install winipcfg but still.

Besides the well-known TCP / IP Protokollpaar Internet communication is based on a number of other protocols , including ICMP , Internet Control Message Protocol. ICMP is used for the transmission of short News used primarily deals with this is to collect status and error information. The main command of the Internet Control Message Protocol ping is .

Ping (Packet Internet Groper ) is the classic of the network command and the first choice if you want to test quickly whether your computer and Dell inspiron 1526 battery or network is the Internet or a Web site is reachable. Enter “ping IP address ” or ” ping ww.name -the- desired – website.de ” one . So , for example, ping www.pcwelt.de . This inquiry is called Echo Request. The pinging host responds when it is available, with an echo reply. If the connection is working properly, you should get a display that indicates whether obtained by the ping packets Web site as an answer.

Go to site pinged the IP address is specified (this is relevant for Internet communication , the DNS names are used so only as a convenience to the user), and the time that the 32 -byte data packets need – the so -called response time. The Ping statistics should have no lost Datenpakate . Are the response times okay and that no packets are lost , then everything fits. Does not ping the other hand, is a time-out , then something is wrong with your internet connection or not pinged the site is not available.

You can also check with ping your local host by pinging the loopback address : ping localhost or ping 127.0.0.1. If then the correct response , IP is properly installed on the host, which is a prerequisite for a functioning Internet connection. Testing the Loopback guaranteed but not yet , you can also on the Internet, because it is hit by the ping to localhost , for example, not a statement about your Gateway. Ping for the IP address of your gateway. Is this achievable, at least the connection works within your network to the gateway.

Ping sends ICMP echo packets by default, four and shows the amount of time to pass the answer. If no response within a second, provides a ping time-out for the package. When you enter ping with the- t, is a Dauerping you cancel with CTRL + C: www.pcwelt.de ping -t. The time to the timeout can be increased with the- w. To ping , there are many other interesting options , two , we present here :-a resolves IP addresses to host names. -N specifies the number of ICMP packets (default is 4 ).

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The most important networking and Internet orders for Windows

August 23, 2010 No comments »

Windows provides a powerful set of commands available to verify that not only administrators and webmasters, but also end users quickly their network or their Internet connections and configure . We present the most important commands for the command line of Windows XP , Vista and Windows 7.

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On the next page We provide you the most important Windows commands from your network and your Internet connection. They learn , among other things , how to determine the MAC address , which it has with Arp on how you figure out the IP address of your computer ,Sony vgp-bps9/s and follow the route of your packets. How do you test quickly and easily if your computer can ever establish a connection to the Internet and how the network configuration of your PC looks like concrete. If you suspect a Trojan on your PC, so we present you with a Windows command that you can detect such undesirable connection and view all open Internet connections on your computer.

Previously, some general guidelines for entering command line commands from Windows

To enter Windows commands that you always go as follows: Open the Run in Windows XP from a command prompt on startup. Typing cmd and press Return. In Vista , type in ” Start Search ” cmd. This will open a DOS window , where you enter the command line commands. If you typed a command, you must then always press Return to execute it . Snap to it you will see the result.
Note: The screenshots are taken in part of Windows Vista and the other part of Windows XP Professional. Depending on the employed from you Windows system, the representation and the exact name of the command prompt more details. In addition, all computers and Dell inspiron 1520 battery are not on all DOS commands equally available.

General tips for the console window :

If you want to know what makes your Windows DOS version available, just type ” ver ” one in the console window.
If you need more information on a specific DOS command, type help “and the sought COMMAND “field. However, this support function exists only for common DOS commands in netsh helps less common commands such as a further alternative support request: netsh /? .
As with Linux, you can navigate on the command line with the ” arrow ” – and the “down arrow “key between previously entered commands and execute them so easily again.
If you want to shutdown the computer and you are a DOS window open, you can shutdown by entering shutdown , together with the right parameters to the PC.
whoami : Displays the username and machine name

Tap whoami (English for who I am? ) one . Windows shows that the name of your PC and your username.

cls : remove screen contents

If you have already typed in several commands in a console window, and therefore receive a lot of expenses , you may lose the overview. Order creates cls ( clear screen ) and the window is empty again.

path: path for executable data shows

With the path you can view the directories where you store files that can be run directly from the command line without having to change to the directory in question . You can add directories by either path or use the menu of Windows Explorer.

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Virus safety in the home network

August 16, 2010 No comments »

Virus safety in the home network:

The biggest threat comes from the PC ,Trojans and other pests. With a good anti-virus software and the right advice to protect themselves and Dell inspiron 1501 battery effectively. The fraudsters to spread their malware in three ways:

Pure mass: The criminals hang a pest an email with more or less doubtful text and send it a million times. Or they put the virus on a server on the Internet and send emails or news via Messenger with a link to the pest. Defense: These attacks have little chance of success, as less experienced users already know the trick. To attachments and links in strange mails respond today only absolute computer novices wrong. This must then anti-virus software can help. Incidentally, these days are dangerous in principle almost all file types. Even on a PDF document can hoist system to viruses.
Social engineering: It works in principle as first, just in mail or on a website a truly sophisticated text to the recipient to click on the link or the attachment to the lead that. Examples are alleged accounts, warnings, police documents in the appendix – or porn videos or pictures of naked people who want to be downloading it. If the text is well done and the mesh is true even experienced users can fall for the trick, and attachment or downloading the malicious file start. Defense: Be as wary as possible! If in doubt, please do not just click on the click. Against very well done with social engineering attacks, no one is immune. Fortunately, these are still very rare. If you have a virus but once started, must take the anti-virus tool.
Drive by download & Co.: This method injects virus into the system without the user much dazutut. Visiting a website prepared enough – and the malicious code reaches about bugs in the browser onto the system. Defense: against such attacks only help a well-protected system and a good antivirus software.

Shall work anti-virus tools

If all care has been of no use and want to sneak a virus on the PC and pavilion dv4000 battery, the antivirus software must prevent that. Take precedence, the tools:

Signature: The antivirus program file is one with signatures. They are the fingerprints of viruses that uniquely identify a pest. The signatures by the tool gets update from its manufacturer. This method detects the virus reliably. False alarms are rare. the signature on a PC come up, but takes some time. For in the first spread of the pest, and only then can the anti-virus vendors discovered and analyzed. This must create a signature and by providing fix. The time span is between a few minutes or days, rarely weeks.
Heuristic: Most pests are only a few variants, up to date successful viruses. Antivirus programs have therefore stored program model, probably in all variants occur. This method also detects new variants. However, they also produced false positives in tests and showed detection rates of only 20-45 percent.
Behavior analysis: It analyzes the actions of every unknown program and stop it if a suspicious conduct. This method also detects completely new pests, but also produces many false positives. The tools are usually the right decision to rely on the user.

If your antivirus program reports a pest, it is important how you respond. The further procedure depends on which module the message prints, and locate the virus and what kind of kind of virus it is.

Virus scanner: Activate a test run with the scanner activate manually to allow the PC to examine all files. Some anti-virus tools to start such a test run automatically – a week or two displays. When notified by the anti-virus program in the present investigation a pest, then this is probably some time on the PC. You should install the system from scratch. Exception: The pest is in the mail database as an attachment to an email and you are sure that no one has opened your PC and thinkpad x61 battery this Annex to.
Quarantine pest in transport: The guard is permanently active and monitors all current write operations on the PC. Reports of the virus monitors pest tried probably just sneak it. It is usually sufficient, anti-virus tool in quarantine to take leave of the pest.
Virenart: Check your anti-virus program is a virus is found mostly about the pest and also classifies them according to one of his dangerousness. The tool reports about a tracking cookie, is the equally little reason for a new installation as a hoax virus. All other messages, you must take very seriously.

Tip: As part of our specials to BitDefender Internet Security 2010, we offer a free 30-day trial version for download. The security solution combines Antivirus-/Antispam-Software, firewall, parental control and much more, and slows your PC technology, the Rechnleistung not been reworked. Get more information on BitDefender Internet Security 2010. We also offer PC World readers an exclusive 60-day trial version of the software to download.

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Digital Cameras: More ISO for Olympus E -500

August 11, 2010 No comments »

Digital Cameras: More ISO for Olympus E -500

From factory, the digital SLR camera from Olympus E-500 offers a sensitivity range from ISO 100 to ISO 1600. But with a combination of keys you can adjust the light sensitivity to ISO 50 or ISO 3200 to expand – without the firmware of the camera! Turn on the camera, and open the card cover. Simultaneously press the “Play “and” OK “. The name of the camera appears on the display ( “Olympus E -500 “). Now press Down , the four -way directional pad and the trigger in this order : Top , Left, Right, trigger , Up, Up, Left, Down, Right , Down . You are now on page 3 (Page 3 ) of the test mode menu. Press the button for exposure compensation , then on the Control Pad Right , Down, the shutter button and OK. The display shows the ” test. ” menu with options for “Prg “and “Item “(see picture). For ISO 50 , set the “Prg ” value to ” 10 “, the value for “Item” let on ” 0 “. For ISO 3200 set ” Prg “to” 10 “and “Item “to” 18 “. Press ” OK “to activate your changes and close the card cover. Now you can take pictures with ISO 50 or ISO 3200 ( depending on what you selected ), even if the display shows the ISO setting as “Car”. Note, however, that the changes are only as active until you select another value sensitivity or turn off the camera.

Digital Cameras: Canon models drill

CHDK is a firmware – use extension that brought several models from the PowerShot and Digital IXUS range , Canon additional functions: for example, can be with the CHDK RAW format, and cut short the time limit for video recording. The display shows a histogram and other useful information. There are also ongoing on the Acer aspire 3000 battery life in percentage. Over-and underexposed areas of an image can be marked by flashing. CHDK -optimized digital cameras work with longer exposure times, faster shutter speeds and additional exposure series . And they can be programmed so that they perform a series of basic commands ( scripts). Even games work then with the camera. The CHDK software works from an SD card with a maximum of 4 GB. The camera boots up by it , the actual firmware is not changed. So you need not worry about the warranty of your camera to have. Also, you are always going CHDK by formatting the memory card or switch . We show you step by step how to install CHDK onto an SD card and use it.

Step 1 : Gather Important Information

First you need in the List of all supported Canon digital cameras Find out whether there is a CHDK version for your camera model. Decisive , however, is not only the product name, but also the firmware version of your device. To find it , create a blank document with Notepad . Save this as ” ver.req “(Version Request from) and select the file type “All Files “. Place this file using card readers in the root directory of the memory card , directly after the drive letter. Insert the card into the camera. Select the mode dial to Play mode and turn the camera on. Lets you choose the play mode by button , turn the camera on first, and then switch to play mode. Press the “Set “button and hold it down. With the ” Disp “button you can now see the firmware version of your camera , such as ” GM1.00C .

Step 2: Prepare CHDK

Based on the firmware version of your camera, you have to find the corresponding CHDK version and reboot your Canon model from it. All you need is an SD card with a maximum of 4 GB, a card reader and the English-language tool Card Tricks. Insert your SD card into the card reader, and run Card Tricks. Click the SD Card icon , and select your memory card into the tree. Click the ” Format as FAT ” to format the card in the correct format . Then click “Make bootable “so the camera can then boot from the map. Select not yet read ! “Download CHDK ” takes you to a list of all available versions of CHDK . Select the version that suits your camera model ,8n544 batteryand its firmware version. Click the file name to start the download. The ZIP file is stored on your hard drive. Caution : If the list of supported cameras , although your model, but not its firmware version is listed, You will need only a firmware update. If this is not possible , you can not use CHDK in the case.

Step 3: CHDK on SD card bring

Click Card Tricks on the ” CHDK -> Card “, and select the location where lies the CHDK version , such as the desktop. Double click on the ZIP file extracts Card Tricks the CHDK software and installed the files and Diskboot.bin ver.req on the SD card. Quit Card Tricks with ” Exit “, and remove the card from the reader. Activate the write protection on the small switch on the side, and insert the card into the camera. You can despite write-protect images on the Map Store ! Turn the camera on , start the CHDK software. With some Canon models , you must press after power nor the play button and then briefly press the shutter button . To reach the CHDK menu press the Direct Print button (and sometimes the key to facial recognition) and then the menu button. To navigate using the directional pad and ” Set “. but remember to leave the CHDK menu on the same road again, After you have made your settings.

Step 4: If the camera does not boot

In some cases, you have to make the finished card CHDK manually bootable. Unzip to the Zip Archive Bootable on the hard disk and copy the file Bootable.exe on the map. Under ” Start, Run , type ” cmd “and press the Enter key to open the command prompt. Change to the directory of the card by , for example, “F ” and <Return> . press Type the command ” bootable.exe F: “, and confirm with “y “for” Yes “to start the process. The camera now starts the CHDK software from the SD card.

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How to solve common technique error

August 6, 2010 No comments »

PCs , cameras , smart phones , printers , networks – if they give up the ghost there is need for action. We show you what you can do .

Craftsman home

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Your PC crashes , your camera battery and your laptop battery(vgp-bps8 battery)is broken , your network breaks down and crush your printer paper. Everyday problems – but how they are correct ? Instead of investing time and money into a technical service employee , you still prefer to venture out to the troubleshooting. We provide you with the most basic knowledge to your PC , your home network, your printer , digital camera and your phone back on its feet.

Problems on the PC

When you consider how many different software and hardware packages are needed to allow a PC to work properly, it is little wonder that computers today run as good as they do in the rule. In this respect, we can provide a panacea for all ailments of your PC available – because there is quite simply none. Therefore , we treat the most common PC problems and show you what you can do about it.

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The PC will not turn onIf you use a laptop you are trying to replace the Sony vgp-bps9/b or switch to external power. Take a desktop PC , try another outlet . Make sure also that all internal connections and cards are inserted correctly and nothing is loose. If no one helps the proposals , the issue could be the motherboard or the power supply . In this case, the only way to hardware vendors or pick up the phone for the Support Hotline.

Windows will not start: Restart your computer normally and then press F8 during the boot process repeated. This will take you to a menu from which you can select different boot options for Windows – including the safe mode . Start Windows in Safe Mode and uninstall all the programs you most recently installed. Update all device drivers, and also open the System Restore utility ( Start Menu , Accessories , System Tools, System Restore ). This puts your system in the last state that is known as working . If the safe mode does not work, could be wrong with your hard drive. Take the case of a self-created rescue disks or the manufacturer’s recovery disc , boot from the CD and back up all data you want to save you. Then run a diagnostic program – you should not have a separate program for it , let the pre-installed Check Disk will check your hard disk (right click on a check of your hard disks , Properties , Tools, …). Now There is no cure for damaged hard drives it. This helps only one purchase. When you hear some beep sounds at startup , you would like to tell your BIOS likely that there is a problem with the motherboard. For instance, the cable of your CPU fan to be solved or the power supply from sony vgp-bpl2c battery is not working sufficiently enough. exactly what the problem was , you said the sound sequences of the twittering . Since there are no standardized guidelines for this , however , you must check the manufacturer’s website of your computer on the importance of sound.

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Hardware components identify: What ’s in your PC?

August 3, 2010 No comments »

Screwdriver ade : If you want to know what hardware works in your PC, you only need the appropriate diagnostic tools. We present three free programs .

You are looking for updated drivers for older hardware or a BIOS update from the Internet and need the exact device name. Or do you have a gaming PC unknown age distended and no idea what graphics card is installed. Tools for system analysis will reveal graphics chip , video memory capacity , form factor and the installed driver version. This allows you to quickly check on the packaging of current DirectX 10 games on the system , whether the particular game is still running on the computer and ibm thinkpad x61 tablet battery or a video card upgrade is necessary. Interestingly , the use of diagnostic tools so that even on older PCs that you have no more manuals

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It is not easy to elicit with Windows on board means the hardware in the PC or notebook is working . In the Control Panel tells you the operating system , although some details about the hardware , but you have to laboriously such information in several places. Far too short overview is available in the Control System. The Device Manager reveals further details , but remains – for example in the used memory modules – important information guilty. You’ll need to unscrew the PC and hard look at every single label of all components? Remedy free tools with which to quickly and easily identify hardware data and Ibm thinkpad r50 battery of the computer can look at and clearly .

How does the device revealing the level ?

The analysis tools identify the installed hardware as follows : Almost all manufacturers specify a hardware identifier in a small memory in the device, which can be read by the system tools . For PCI devices , there are , for example, the class ID, the vendor ID and device ID. The Class ID identified by a four digit code, the device type, for example, 0200 for an Ethernet LAN controller . The Manufacturer ID identifies the manufacturer – for example, is 8086 for Intel. The device ID indicates the exact model. For unknown manufacturers and unusual products, it can happen in very rare cases, once that none can name the tools presented to the hardware. In this case, you have to actually open the PC or ask the manufacturer .

What do you need this information?

Many tools provide for a comprehensive report about the detected hardware and ThinkPad x40 battery , which would be several hundred pages long in by hard state. Thus, a lot of information you need in everyday life almost never . An important application scenario is a newly purchased PC: If the manufacturer has really built all the components that he has promised full-bodied in advertising ? A system analysis tool , you can immediately tell if the processor is the model corresponds to the prospectus , or whether the network controller really Gigabit -LAN supported.

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Netbooks: The battery lasts longer now

July 28, 2010 No comments »

Netbooks: The battery lasts longer now

Great stamina already had the older – generation netbook . The new set top it: The Pine Trail Netbooks kept in thinkpad t43 battery 30-45 minutes longer than comparable with previous models . The MSI Wind U135 with 48- watt-hour battery ran for Internet access via wireless just under six hours. brought the HP Mini Note with 58- watt-hour battery test on it in 8:35 hours. The Samsung N220 held out thanks to the 63- watt-hour battery even 10:04 hours.

Even more stamina showed the Asus Eee PC 1005PE : When Wi-Fi test he reached 10:19 hours, although he is only equipped with a 48- watt-hour battery. The Asus device was thus the most economical in the test. But can be the result not directly comparable with those of the other Pine Trail Netbooks : For wireless testing, the PC World is in fact the brightness of the Netbook screens to 100 cd / m². It can thus be in a normally lit room read easily . But the Asus netbook managed only a maximum of 96 cd / m². Also at the second test of the battery – dim screen the Asus netbook helped to a lush period of 6:20 hours. This test checks the PC World , as long as the Netbook , when playing a movie from the hard drive hold out. Here the image is set as light as possible : learn how to make films and photos the best impression. Until Asus released a BIOS update that gives the Eee PC 1005PE to a higher brightness, PC World , the device is therefore devalue the Pavilion DV1000 battery time.

The Samsung N220 outperformed the Eee PC 1005PE with 6:44 hours, and the HP Mini Note was 210 for six hours. But in both netbooks puts a larger battery, which makes them a little harder. The MSI Wind U135 with 48- watt-hour battery ran 4:19 hours.

Thus the new netbooks beat at games & HD movies

The Pine Trail Netbooks are therefore a bit more economical than their predecessors. Much faster they are not. The new processor Atom N450 for example, offers a little more processing power than its predecessor Atom N280 . In the tests, the 3D velocity of the new netbooks cut but twice as good as the predecessor Windows XP. But that was less in the new GMA 3150 graphics chip than 7 to Windows

Still, for 3D games and the new netbooks are far too slow. The Aero interface of Windows 7 could be the new netbooks well : it makes the Windows interface by program windows with a transparent border and shadows not only look elegant, but will in many windows open even better overview. But in the Starter Edition of Windows 7 Aero is not included .

The playback of high resolution videos overwhelmed by the way , the new netbooks. Although it is on such a device is rarely high- definition ( HD) movies to play from an external Blu -Ray drive. But the Internet is true more often on high-definition video , even with Youtube. Those who absolutely need HD to the netbook , it must be with the Minis – Ion graphics from Nvidia attack , which in 3D and HD are stronger than the Pine Trail representative. However, the ion netbooks running on battery power much shorter.

The HP Mini Note 210 was the fastest of the new netbooks. In it lies a hard drive that operates at 7200 revolutions per minute. All other netbooks use a hard drive with 5400 rpm. The HP netbook brought in some tests a small rate increase , which occurred at the expense of the duration.

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No CD / DVD drive ? To solve the problem!

July 23, 2010 No comments »

Netbooks have become increasingly popular : They are small and cheap, but one of its biggest drawbacks is the lack of optical drive. Most of the time it would hardly interfere , but we want a software from a CD or DVD , one has to rely on a few tricks. We reveal what they are.

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Not only for netbook owners are the following tricks helpful. Even sub-notebooks usually have no CD / DVD drive and when the laptop or PC drive is adopted , if you want to burn an urgent Powerpoint presentation, or MP3s, will be more than the following tricks. Even if your drive is working perfectly , you save some of the tips even electricity of Dell inspiron 1525 battery- an important factor when working on the road.

Tip: A useful addition for Netbook users are also virtual CD drives around with them Virtual CD . Setting Once one of the following tricks used , the tool saves the Silberling compressed on the hard disk. You must apply the tip so a second time , but just start the virtual CD from the drive.

Effective Replacement: External CD / DVD drive

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The simplest solution is an external drive that you connect via USB to the computer. Firewire models should be of interest because of the lack of connection on netbook or subnotebook for most users. His current pulls the external CD / DVD drive , depending on the model via the USB cable or a power cord from the Dell inspiron 6400 battery outlet.

If you value takes as little extra baggage , the ultra-thin slimline model. In addition, the user has the choice between external drives, move the CD on a tray , or through a narrow slit , similar to the CD player in your car. The latter option is usually even thinner , but does not mini – CDs. If you buy the drive you should use the most equal to a torch: With it, you not only read data , they also have backups on CD or DVD.

Usually lag the external CD drives their internal counterparts in terms of speed behind slightly. In our Comparison of the best DVD burner it creates an external burner but in the top 5. For an external burner you do not have very deep into their pockets , entry-level models cost substantially less than 40 €.

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How to protect yourself from Internet threats hidden

July 19, 2010 No comments »

Anti-virus software and a firewall alone does not guarantee your safety. We show you how to thwart sneaky Internet attacks.

Do you know how to protect themselves against Scareware ? What about disguised as a text message from Trojans ? Or with data collectors in social networks? Malicious hackers develop targeted more new methods that exploit our way of dealing with computers and your apple a1175. New attack strategies and cautious deceive Internet users.

This effort is also to the data of the cautious and well informed to get PC users. On the following pages will be presented to the eleven most recent and most malicious Internet threats, and describes how you can protect yourself from them.

Shortened URLs

Many Tweets , and some other electronic messages contain links that will be reduced from services such as Bit.ly , Tr.im and Goo.gl . These reductions are often very practical, but also very risky. Because shortened URLs provide no indication of where you land after a click , attackers can use them to you so as to lure you to a malicious website by hackers .

Use a Twitter client

In the options of programs, such as web , you can specify that the secret behind the shortened URL is displayed as a page preview. When you click on a shortened URL in the tweets, opens a window that displays the page name and URL of full length. In addition, it says how many people have already hit this shortened link. With this information, you can now better evaluate whether you should click on the link to visit the hidden face behind it .

Install a URL preview plug -in

Some Web browser plug -ins and internet services also enable previews . For example, when creating a shorter web address with TinyURL You can select an option that allows other to see the site as a preview before you click on the link. On the other hand, you can offer a Preview Service , see if you want to visit a TinyURL link to earlier to see the full URL. This work TinyURLs preview options , your browser must accept cookies.

ExpandMyURL and LongURLPlease both offer Web browser plug -ins or Apps to verify the security of the full URL the acronym of almost all URL – shortening services. Instead of converting the shortened link to the full URL, checked ExpandMyURL the website in the background and colors the green link , if it is safe.also it is safe for your laptop and apple a1185.

Goo.gl , Google URL – shortening service ensures a degree of security by automatically the URL is scanned to detect any malicious websites. If the scan strikes , the user of this shortened URL will be warned that behind it lies a potentially unsafe site. Unfortunately, Google has restricted his service Goo.gl so that it is only in combination with other Google products and services available .

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