Confusing beliefs about technology

It is thought that partitioning and defragmenting your hard disk can make your computer work at its best. In fact, that "performance" depends on the amount of files that users change / delete each day.

According to PC World (USA), this is one of the beliefs "invariant" for many technology experts. " The operating system has a stupid habit of taking advantage of every empty storage box, even if it is in the middle of a large area of ​​use, while there are lots of empty areas behind, " said Mario Apicella, an expert in junk. InfoWorld releases, comments. " Therefore, there are files scattered around the hard drive, making the device take time to find them together ."

But when conducting tests, PC World did not see any significant acceleration after using a series of defragmentation programs. For example: Diskeeper Corporation's products are advertised to enhance the processing capability of computers but must have at least 20% of free disk space. Therefore, each device has different changes.

In essence, partitioning a large hard disk into many smaller logical drives does not speed up the computer but only gives the user some benefits. For example, it is easy to manage system programs (drive C) and data warehouses (drive D, E .). When you have to reinstall the operating system, for example, the information on drive C will be gone, so users can back up the data on the remaining storage drive. Here are some other "mistakes" that have been recorded.

High-speed memory card in the camera helps to capture faster

" This product only allows digital cameras to save files faster, which doesn't mean faster shooting ," said Mike Wong, SanDisk PR Manager.

If using a high-speed camera with a slow memory card, the photographer will see the camera save for a long time. And using a fast card with a slow camera is like putting a racing engine on a turtle. However, this difference is only evident in SLR (single lens), while simple shooting and shooting modes are not.

High-speed cards also reduce file transfer time to computers, as long as there are corresponding fast card readers. This becomes important when the resolution of the image and the size of the card is large.

When the PC is hacked and turned into a "zombie", the user will know

Lawrence Baldwin, of MyNetWatchman, believes that this is not possible. If the hacker turns your computer into a spamming place, the system can only report when there is security software that checks the amount of e-mail sent. But often malicious code has turned off anti-virus software, firewalls, Windows Update services to be free to run.

Users pointed out this issue when the notification service provider had a "drive" that discovered their IP address to take advantage of and the e-mails they sent were blocked because of a local security committee. find out. According to the expert, PC users should not be naïve to believe in malicious software.

The X-ray scanner at the airport can erase all images in the camera

" Our equipment will not affect digital cameras and memory cards ," said the US Traffic Security Commission.

In fact, CompactFlash cards, Secure Digital or Sony Memory Stick are more durable than expected. In the tests of Digital Camera Shopper, these products can be operated after being soaked in a bath, turned in a washing machine, overwritten by a skateboard .

In case of loss of images on the card, you can use CardRecovery, EasyRecovery Lite . to recover.

Rechargeable batteries are more economical than disposable ones

The cost effectiveness of rechargeable batteries depends on the battery type and frequency of use. For example, the nickel cadmium and nickel metal hydride rechargeable batteries run out of energy quickly when kept in the device for a long time without being used. Meanwhile, lithium-ion rechargeable batteries keep energy longer.

" Rechargeable batteries are a cost-effective solution for regular users ," said Blayne Murphy, battery specialist Duracell. " But for less-used people, the one-time use proved to be more dominant ."

In addition, they have to spend money to buy battery chargers and see how many energy storage devices can work through charging.

Google can find everything online and that information cannot be removed from their database

If you follow the instructions on Google Webmaster Central, you can remove the pages they find, including your site. If the site already has links to other sites, this process will take longer.

If you manually type in the URL, the user will not enter the wrong phishing page

According to Dave Jevans, chairman of the Anti-Phishing Working Group, there are two dangers lurking on users.

One is in the pharming attacks, although manually typing the correct domain name, the user can still be directed to the impersonation page. Jevans said the only way to prevent it is to save these pages in a private security area (starting with https :). In addition, they also need to pay attention to warnings from the browser.

Two, malicious code can rewrite host files in the computer or attack the browser. Therefore, it is necessary to regularly update its patches.