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How to connect two computers using a null modem

Have you ever taken a look at all the port and connectors available at the back of your computer tower? You will find connectors like for LAN, Sound, Parallel Port (15 Pin), Serial Port (9 Pin), Serial Port (15 Pin), VGA (15 Pin) and many more. We know that VGA is used for connecting the display device, parallel port is used for connecting printers, serial ports are used for connecting old external dial-up modems, but is there any other use of serial ports? Yes the 9 pin serial port can be used for connecting two computers together so that they can communicate with each other and share data and resources together. The device which is required for making the connection over these serial ports is called a null modem and it is nothing but a simple cable with 9 pin serial port connectors at both its ends. The RS 232 serial port is quite an old component of motherboards and you will seldom find it in motherboards available today. But if you have this port available in your laptop or computer then you can easily use it to connect the two devices together.

Step 1: If you do not have an RS 232 Serial port available in your device still you can make it work over the USB port by getting USB to RS232 convertor. This will allow you to connect you null modem over USB.

Step 2: While connecting the null modem to a laptop not much of precaution is required but if you are connecting it to your desktop computer then better would be if you switch off the computer. This is precaution to avoid any electrical shock. Computer towers are generally metallic and ten to accumulate static charge while they are ON. If the tower is not properly grounded then you may get electric shock on touching it by your naked hands. So please turn off the computer, unplug it from the power supply and only then connect the null modem to the RS 232 serial port at the back of the tower.

Step 3: Now please check the orientation of the pins on the connector. This will reduce the chances of you trying to connect it to the MIDI port which is also a 9 pin connector of same shape.

Step 4: Once you have made the connection insert the disk which you would have received with the null modem cable. This disk carries special software which makes the communication between the two computers possible over the serial port. Windows by default has no way to control null modem and you would need this software installed on both the machines. In case you do not have the disk then search for software called Laplink which is meant for solving the same purpose.

Solutions for Black Screen on Windows Startup

When opening a PC, there are times when the monitor does not show anything. This may happen when you start up your Windows 7. But in this case, what is the probable cause? What can you do to fix this?

Resolving the Issue

The first thing to do is to check the plugs, cable and connections of your computer especially the parts that are connected to the monitor. You should try disconnecting and reconnecting the cables and plugs in the monitor. Moreover, if you have alternate connection to you monitor such as that of HDMI, DVI or VGA, try to connect the monitor to each of this connection to make sure if the problem is with the connection or not. Moreover the problem as discussed earlier is usually caused by the video adapter of your PC. To avoid problem as such, be sure to turn of the computer power button before plugging or unplugging.

A black screen may also appear if you are using multiple monitors. To make sure that this is not the reason for the problem that occurred, try first to use a single monitor. If it works, this means that having two monitors create a problem to the display function of your PC. Simply stick to using a single monitor.

There are actually three processes that you can follow to know where the problem lies and to avoid having this problem. The first process is to enable low-resolution video then restarting the video adapter driver. The second option is to start the computer in the safe mode and disable the video adapter. And the last would be to start the computer in the safe mode and running the System Restore. How would you be able to do these things?

Instructions

In enabling your low-resolution video and updating your video adapter drive, restart your computer first. The next thing to do is to put your operating system into safe mode. Press F8 then the advanced boot options screen will show. Choose the Enable Low-resolution video (640 x 480). Log on to the computer and find out if the problem is with the video adapter or in somewhere else. You’ll be able to know if the problem is with the adapter and if you will be able to see the desktop.

With the second option, the first step is to restart the computer again. Then press F8 to access the Advanced Boot Options. Choose the safe mode in the advanced boot options and press enter. After this, log in to your account or the administrator. The words safe mode will appear in your monitor. Click the start button, go to control panel. Click the System and Security, choose System then Device Manager. You will see a list of hardware and you should choose Display Adapters. Disable it by right-clicking and choosing disable. The last step would be to restart the PC normally. Seeing the desktop after this process would mean that the problem is with the adapter.

The last option is simple. Follow the steps in the second option until in the using safe mode in the Advanced Boot Options. Click Start button, then search for the system restore in the search box. Click System Restore after searching it. Just click nest until you end up in the Finish button. Then restart your computer. Choose the option that you like most or you can do all of them.

The Lenovo Q150: The ideal Nettop!

Nettop is the name given to a small, low wattage desktop whose primary purpose is to surf the internet and serve low end computing purposes. This genre of products is also very well suited to meet the entertainment needs of the customer. The Lenovo Ideacentre Q150 serves the purpose well and can be considered to be an ideal choice for the medium range Nettop segment.

The latest product in Lenovo’s Q series range of Nettop, the Q150 aims to make a mark in the home entertainment field. Small in size (it measures 0.8 by 6.8 by 6 inches), this Nettop comes with the benefit of fitting into most places. Few of its key features include the Intel Atom D410 1.60 GHz processor, 160 GB hard disk, up to 2 GB DDR2 RAM, Intel GMA 3150 graphics card and integrated 802.11b/g/n Wi-Fi. Few of these features are upgradeable on request which is pretty decent for a basic Nettop.

As far as aesthetics is concerned, the Q150 is very well designed. It has a neat, glossy finish which makes it appropriate for a home theatre system while it fits well into an office atmosphere as well! The look of the Nettop is very contemporary and is more suitable for the newer generation. All the ports in the system are along the back which includes 4 USB ports, HDMI (Nvidia ION graphics only), VGA, headphone and microphone jacks, and Ethernet. These ports at the back give the whole system a clean and elegant look!

The Q150 comes with a number of optional features. For example you can choose to go for a USB keyboard and mouse, but then it is not favorable if you are buying it for home theatre purposes. You can even choose to purchase a hand-held keyboard with a trackball mouse and multimedia keys! One drawback of the Nettop is that it does not have a DVD or Blue-Ray drive. Most conventional Nettop, however, do not come with this feature. If you’re looking for an optical disk drive, the Apple Mac Mini at $599 is a good buy with its DVD drive. PCs such as this have a very small form factor making them suitable for such applications.

Priced at a mere $399, the Lenovo Q150 has an advantage in this segment. Nonetheless, competitors such as The Pollywell Giada ION-100, priced at $449 will give it stiff competition. The Q150 advertises itself as a miniature Home Theatre PC and lives up to the expectation of being one. It is ideal for storing all your digital media, if that’s what you’re looking at.

Lenovo has given good, affordable products to the market and has always been a favorite in the medium range segment. The Q150 treads the same path. It is a good looking and reasonably priced PC offering decent performance. But if you’re looking at high end applications, this is not the product you should be considering. In fact most Nettop are not built for such purposes, but are ideal for some fun and games!

Ultimate connectively with Acer Travelmate 4600 series Laptop

Be it an email conversation, web surfing or a document creation, Acer Travelmate 4600 laptop has got the potential to get the person going. It weighs about 6.4 pounds and measures about 13.2 inches in width. The depth and thickness is 11.2 and 1.4 inches thick. When compared with the HP it weighs 6.5 pounds. Certainly, one would like to choose lesser load for better travel experience. That is the reason why for being lighter Acer has named it as Travelmate. Typing is so much comfortable with the Acer Travelmate 4600. It is designed in an ergonomically fashion to give a smooth experience. Unfortunately the multimedia features are not so effective in this model of Acer. There are three quick launch buttons for different applications and also there is a WiFi On/Off button for easy access. Compared to the old laptops, this new version is much quieter and faster. The only exception about this is that the DVD burner makes a lot of noise at times and one can listen to the sound of the internal fans at the bootup. It also passed the battery drain test by giving 4 hours of amazing battery life to the customers.

At the right side of the edge, there are 6-in-1 card reader, type II PC card slot, infrared port and all the major flash memory cards. USB 2.0, VGA, DVI, S-video, four pin Fire Wire and docking along with a Gigabit Ethernet jack plus are attached to the back edge of the device. Headphones, modem jacks, microphones, three USB 2.0 ports along with an integrated single layer DVD burner are included at the left side of the device.

Acer utilities include the power management, password management and other available basic settings. Other features include Cyber Link power DVD for disc playback and the NTI CD and DVD maker for burning the disk. As compared to the other models, this one would be very cost effective for the features it includes in the model.

The product comes with an average of one year warranty and it is through mails. It is disappointing to see that the Acer was not able to provide a round the clock phone support system. The support is from 8AM to 5PM CT in the weekends and 7AM to 9PM Central time on the weekdays. The support is not live so you would not get to talk to a real representative. Acer claims to return to the customer within an hour of the call but most of the time it doesn’t happen. It would be better if there is any other means of technical support, through chat or through any other means.

The suggested price for the Acer Travelmate in the market is $1,149 but it is found that most of the online resellers have increased the price to $1,200. With the combination of components and services it provides it sure is a fair deal with the Acer Travelmate even if it is not bought at the suggested price.

New Projectors from Home Vu uses LED Technology for Home Theatre Projectors

There has been a buzz recently n in news about a launch of a home theatre projectors using LED technology. A company named Home Vu has come up with two designs which uses the revolutionary LED technology for its operations. Home Vu has been pioneers in Home theatre products and related electronic appliances since its inception back in 2001. Since then they have come up with some really wonderful products which could make your home theatre really spectacular. One such product is their latest launch – the projectors making the use of LED technology. Home Vu has introduced two  models initially called HD650 and HD850.

The major and the most eye-catching advantage by using this technology will be the lamp. Up till now changing the lamp has been a big problem in all projectors. You always have to change the lamp of projector after using it for about 4,000 hours. But these LED projectors s give you a guarantee that nothing will happen to the lamp of your projector for 50,000 hours which makes 2 decades even if you run your projector 6 hours daily. That’s just phenomenal and out of the ordinary.

The story doesn’t stop there. It was just  like Home Vu had determined to solve all problems in all projectors prevalent today in the market. They claim that their LED technology powered projectors are able to start and shut down instantaneously. Gone are the days when you had to wait for the projector to get heated up and then start using it. Now you push the button ‘on’ and your projector is ready to use, isn’t that incredible? Well you might also be dumbfounded when I say that despite these astounding properties these projectors consume very less power in comparison to its other contemporaries. Yes, the LED technology makes it possible to reduce energy consumption.

The surprises are not yet over folks. These two marvels from Home Vu are totally quiet when they run. They are completely free from the noise which the projectors used to make traditionally. So from now on there will be ‘pin drop’ silence in your home theatre room and the thriller and horror movies will get real spell bounding. That little hissing sound coming out of other projectors is now a history.

There are several more such features which can really astonish you. In some of its features the LED projector  have all ports in it, you have HDMI port and also a VGA port for your older laptops, you have a luxury of several colours to choose from, there is also a feature called picture-in-picture which allows you to watch two different things at a same screen simultaneously and several more. But at a price tag of $499 (for HD650) and $540 (for HD850) these gadgets definitely seems to be a catch. It would be definitely wise money spent. These two projectors have got lot of admiration globally from end users as well as dealers and will surely go places as far as home theatre projector markets are concerned.

ViewSonic PJD6251 projector

The ViewSonic PJD6251 arrangement projector has a filter-less architecture and can be army on the beam or acclimated on a table-top, additionally accouterment 3700 ANSI lumens of angel brightness.

It offers chip 10W speakers and displays a best 1024 x 768 resolution at a awning ambit of 33 feet. Additionally alms RJ-45 connectivity for alien arrangement ascendancy and an HDMI port.

The ViewSonic PJD6251, with a resolution of 1024×768 XGA DLP Arrangement Projector, HDMI, 10W Speakers, RJ45 and 3700LM. An avant-garde 120Hz / 3D accessible DLP projector which includes BrilliantColor technology to aftermath added active colors, while the aerial accuracy and adverse ratios accomplish this projector flash in around any lighting situation. The PJD6251 delivers 3700 lumens with a 1024 x 768 XGA built-in resolution. This projector is advised for table-top use or can be army on the beam for classrooms and affair rooms. The top amount lamp and filter-less architecture provides for accessible aliment and low absolute amount of ownership. RJ-45 connectivity enables alien arrangement control, while the all-encompassing ascribe options and chip 10W speakers accommodate for able presentations or classroom lessons.

ViewSonic’s PJD6251 is an avant-garde 120Hz, 3D-ready DLP projector which includes BrilliantColor technology to aftermath added active colors. Aerial accuracy and adverse ratios accomplish the Viewsonic PJD6251 projector flash in around any lighting situation. Advised for table-top use or it can be army on the beam for classrooms and affair rooms. The top amount lamp and filter-less architecture provides for accessible aliment and low absolute amount of ownership. RJ-45 connectivity enables alien arrangement control, while the all-encompassing ascribe options and chip 10W speakers accommodate for able presentations or classroom lessons. The Viewsonic PJD6251 is ideal for use in both schools and accumulated settings.

What It Is And Why You Need It:

  • Advised for table-top use or it can be army on the beam for classrooms and affair rooms
  • RJ-45 connectivity enables alien arrangement control
  • Top amount lamp and filter-less architecture provides for accessible aliment
  • Aerial accuracy and adverse ratios accomplish this projector flash in around any lighting situation
  • Advised for table-top use or it can be army on the beam for classrooms and affair rooms
  • Top amount lamp and filter-less architecture provides for accessible aliment and low absolute amount of ownership
  • RJ-45 connectivity enables alien arrangement control, while the all-encompassing ascribe options
  • Chip 10W speakers accommodate for able presentations or classroom lessons.
  • Aerial accuracy and adverse ratios accomplish this projector flash in around any lighting situation
  • Advised for table-top use or it can be army on the beam for classrooms and affair rooms
  • Top amount lamp and filter-less architecture provides for accessible aliment and low absolute amount of ownership
  • RJ-45 connectivity enables alien arrangement control, while the all-encompassing ascribe options
  • Chip 10W speakers accommodate for able presentations or classroom lessons.

The PJD6251 is ideal for use in both schools and accumulated settings.

Many bodies may acquisition it accessible to let their absorption aberrate abroad back confronted with a addled and achromatic presentation from a projector…The DLP accessory is meant for baby to average ambiance settings like classrooms, boardrooms or appointment rooms…The PJD6251 can be affiliated to several accessories accompanying by its blended VGA and S-Video inputs.

ViewSonic is a common baton in beheld affectation articles for today’s business, chump electronics, apprenticeship and able markets. The aggregation offers a complete band of avant-garde LCD and CRT desktop displays, agenda televisions, projectors and beheld accessories that are all advised to accomplish the customer’s beheld acquaintance easier and added enjoyable. ViewSonic charcoal a arch adviser cast in the United States and has won added than 2,000 awards from absolute all-around publications and organizations.

ViewSonic is adherent to chump achievement and is committed to architecture absolute relationships with every aggregation and alone it interacts with. ViewSonic strives to accept interests and concerns, and amusement bodies with respect, address and consideration.

Call Now: +1 833-522-1003
Call Now: +1 833-522-1003
Call Now: +1 833-522-1003