The key difference between hub and bridge is that hub works on the physical layer, but bridge runs on the data link layer of OSI model. Hubs and bridges have different uses. Hubs send data to each device connected to them, and it broadcasts data. On the other hand, the bridge is more intelligent, checking and filtering data before forwarding data. This mechanism can significantly reduce network traffic and improve security. Hubs can connect two LAN segments, while bridges can connect two different LANs. Differences between Hubs and Bridges BASIS FOR COMPARISON HUB BRIDGE Basics Used to connect a number of devices. Facilitates in the segmentation of the larger network. Types Active and Passive Transparent, translational and source route. Data filteration Not performed Conducted Uses Multiple ports Single incoming and outgoing port Links Segments of LAN Two different LAN employing same protocol. What is the hub? Hub is a basic network device because it provides a very simple function of establishing connections between several devices. In addition, the device can also be used as a connector for different LAN segments. These devices are connected to the hub by twisted pair cables. The main purpose of hubs is to transmit data packets to each device connected to them. It does not perform any filtering, which means that each block of data is transmitted to all connected terminal devices, even if it is not the target device. That's why it's considered a non-intelligent device. Hubs work in a single conflict area, which means that transmission lines should run at the same speed.…

Dec 6, 2018 0Comments 964Browse 1Like Even Read more

DDR2 and DDR3 are DDR RAM memory versions, among which DDR3 is a more advanced version with higher functions, such as high data transmission speed, low power consumption, memory reset options, more memory, etc. But the main difference is that DDR3 provides data rates twice as fast as DDR2. As technology advances, faster memory versions, such as DDR (double data rate) memory, have also been developed. The main concept behind DDR memory is to simultaneously access a large number of bits in the chip by applying row addresses to the chip. There are several technologies that can improve bit transfer speed from pin to chip. In order to effectively utilize clock speed, data is transmitted externally to the rising and falling edges of the clock, which is why these memories are called double data rate memory. BASIS FOR COMPARISON DDR2 DDR3 Clock frequency (theoretical) 400 - 800 Mhz 800 - 1600 Mhz Transfer data rate 400 - 800 Mbps 800 - 1600 Mbps Supply voltage 1.8 volts 1.5 volts Prefetch bit width 4 bit 8 bit Memory reset option No provision of reset options Provided Power consumption High Low Speed Slower comparatively Faster Latency 2 - 5 7 - 11 Performance Better than DDR3 Average Cost Less More Definition of DDR2 DDR2 is the second version of DDR (double data rate) memory. These versions of RAM were developed to achieve high data rates for block transmission. It can transmit data at a clock rate of 400 to 106 Mhz. DDR version 2 is a follow-up version of DDR, which mainly…

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It is reported that there are dozens of "ghost ships" in the coastal areas of Japan every year. These boats usually do not have anyone, or just carry corpses or even bones. The number of "ghost boats" drifting to Japan's coast this year has reached 95, up to 33 in November alone, and some of them carry dead bodies that have become white bones. What's wrong with a large number of ghost ships in Japan? As many as 95 dilapidated vessels have drifted to Japan's coast this year, at this rate it is highly likely to exceed the record 104 in 2017. At present, 12 bodies have been found on these "ghost ships". Details of Japan's massive ghost ships According to the statistics of Japan's Maritime Security Agency, 33 ships have been found in November alone, much more than in October, which is also related to the strong sea storms in autumn and winter. Most of them were wooden fishing boats. In addition to corpses, some boats also left small pots, spoons, fishing gear and other items. Since autumn, these "ghost boats" have mostly appeared near Hokkaido, and the authorities have also strengthened their vigilance. In recent years, there have been successive "ghost boat" landings in Japan. The number of "ghost boat" incidents reached 104 in 2017, which is the largest year since the statistics began in 2013. The previous record was in 2013, when 80 related vessels were discovered. Let's see what a ghost ship looks like. Phantom boats are inexplicable ghostly vessels. They are usually missing or sunk…

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I stay away and let her do what she needs to do with her life, Father Lockwood told me one evening during a visit to the rectory in Kansas City. I stay away from games of chance. How to use I stay away I am not God obedient daughter, because I stay away from him. If I stay away from him? She gets to fretting if I stay away form home too long. But other than that I stay away from work over the weekend and spend time with my family, friends, a good book or movie or I do some other fun activity. Now, I stay away from age extremes, and in those rare moments I meet someone extremely younger or older that I'm into, I look for common interests before committing to a date. At the meantime their families were wait at home with great worries. She gets to fretting if I stay away form home too long. I stay away and let her do what she needs to do with her life, Father Lockwood told me one evening during a visit to the rectory in Kansas City. I'd stay away from that part of town, if I were you. He says I should stay away from you. Why would I ever stay away from you? Tony: As long as I can stay away from TV and my stereo. Or maybe I should stay away from all men. I should stay away from married women. I can stay away from guesthouses and hotels and just sleep at train stations…

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Owning a luxury car is not only a man's dream, but also a woman's dream. Now women are more and more fond of sports cars. This list is a series of cars that suit women's taste. Explore the ten most attractive cars for women. BMW M6 Cabrio BMW has always been great, representing wealth and social status. The BMW M6 Cabrio is an excellent car. It is one of the most sporty products in the series. Because of its sexy and charming appearance, women like it very much. It can be your safe and amazing driving choice. Dodge Viper Dodge Viper is another excellent car equipped with V10 engine. It has aerodynamics, fashionable fuselage and excellent color. It's beautifully made, made in Detroit, Michigan, where some of our greatest cars are located. This is a confident car for men and women. Are you one of them? Cadillac Eldorado Cadillac Eldorado embody class and wealth. This is a luxury car, fashionable and unique. It must be included in the top gadgets of your home. The optional audio system has the right to bragging, making cars look great. Ferrari GTO There are several versions of Ferrari's GTO. In fact, some old models are expensive. Ferrari GTO's new car sells for about USD200,000. It attracts women and men to love this car because it has attractive appearance and great specifications. Jeep Wrangler Jeep Wrangler is a good choice for sexy driving. It allows girls to be wrapped up by powerful vehicles with their loved ones. This car is absolutely attractive and famous for…

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What 'TFW' means and why people love to use it online? If you have just discovered a social media post, a commentary or an article. They start with TFW and follow a sentence behind them. What does this mean? TFW: That Feel When Although this is not grammatically correct, it is a popular saying in social media. When you want to express your feeling of doing something, you can use TFW. You may be sad or happy. People can know how you feel after the sentences behind TFW. The origin of TFW It is not yet clear when the initials should begin. But it is probably related to the meme of "I Know That Feel Bro". It is characterized by a simple rendering of roles, embracing another character, as if he sympathized with him. It appeared on the Internet some time in 2010. TFW generally means accompanied by some descriptive sentence. It can be paired with photos or even GIF to express the emotions behind the information intuitively. Sometimes, nothing can convey it better than image. How to use TFW Generally speaking, acronyms are used at the beginning of a sentence, followed by ordinary daily activities that most people have done before. The following two examples should let you know how TFW is used. TFW you finally get a text back after eight and a half hours. TFW you realize you almost just poured coffee in your cereal instead of milk. This acronym is popular on Twitter because it's perfect for describing strange, funny, and embarrassing situations. People are using text, bad grammar and…

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Ninite is a convenient online service. Ninite is a good choice when you need to install multiple software programs on the computer. It's very easy to use. You can install multiple programs when doing other operations. Why do I need to use Ninite? When we use computers, we often use a variety of software, such as Skype, WhatsApp, Chrome, Firefox and so on. If you are a IT professional, you will use more software. Usually, we install individual programs one by one, and although it's not complicated to install each program, it's time consuming. Ninite is a tool designed to install multiple programs at the same time. The apps in Ninite are downloaded from their respective official websites, and they are the latest versions. If the application contains advertisements, it will be ignored and prevented by Ninite. Ninite will also update any software you install and do not need to install it again. Not all programs can be installed through Ninite, if it just meets your needs, you can try it . How to use Ninite If you have used the Ninite tool, you will find it very simple. You only need to select the application you want to install on the system, and Ninite will download an installation package that contains all the selected applications. Open a web browser that you use frequently, enter http://ninite.com. Select all applications to be installed one by one. Click Get your Ninite to download your customized installer. The download time is related to the number of software you choose. After the download is completed,…

Aug 29, 2018 0Comments 1132Browse 0Like Even Read more

This article is a Full Review of FileHippo App Manager v2.0, it is a Free Software Updater. It scans your computer for obsolete software and lets you download the latest version to your computer. FileHippo App Manager is very convenient to use because it supports internal updates. This means that you do not need to leave the FileHippo program and download the updates manually. You can download the updated software immediately by using the Download and Run buttons within the FileHippo Application Manager. Then you can start installing. What are the functions of FileHippo App Manager? You can use it in a variety of operating systems, such as Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2003 and Windows 2000. In FileHippo App Manager, you can see the version number of the application. If there is an update, it will also show the release time of the version and the latest version. FileHippo App Manager can sort the installed program list to show the oldest program and need to be updated. For example, it might show that your version is v2.0, which was released three years ago, and now there is a V6.0 available for updates. You can switch options on the Result page, and there are three options: updates, installed programs, and ignored updates. You can hide any program updates and current versions so that you won't see them on the results page. If you want to see the update again, you can undo this step later. If you have applications that are not installed in the…

Aug 29, 2018 0Comments 728Browse 0Like Even Read more

If you don't know how to make a lifelike Hallmark birthday card, you can try some happy birthday memes. Interesting birthday memes are easier to share than traditional cards. Not only can you save some money, but also help you reduce the waste of paper. How to use birthday meme in 2018? Happy birthday memes and birthday ecards are used the same way. You can use them to wish others happy birthday on the Internet. Ecards are usually sent to others by e-mail on an ecard platform. But memes are more versatile, because they can be saved to computers or devices. Then send the image to someone else, you can use email or instant messaging software. Happy birthday meme example Are you late? The endless war is now over. Everyone has a Hollywood obsessed with the whole actor. Here are some actors who wish the fans happy birthday. No Gift? No Problem It's been said that the greatest gift you can give someone is your presence. Ain't that the truth! Let's have some glitter It's very interesting to celebrate birthday with a bunch of glittering confetti.

Aug 28, 2018 0Comments 949Browse 0Like Even Read more