News Tech Hardwares

Mother board , PCB

2010-09-22T07:07:00.000-07:00

A printed circuit board short in word id called (PCB) in modern computers are called as mother boards. it holds many of the crucial components of the system, while providing connectors for other peripherals. the motherboard is some time called as main board, system boardon apple computers, logic boards. some of us casually called as mobo.

Nexsan doubles storage capacity on SATABeast to 84 TB

2009-11-20T17:48:00.000-08:00

Nexsan Technologies Inc., a storage system provider, announced at the company's NexStep EMEA VAR conference that it has doubled the capacity of the SATABeast storage system from 42 TB (terabytes) to 84 TB in four units (4U) of rack space.

Built to provide ideal power and space efficiency, along with meaningful cost efficiency, the SATABeast enables midsized organizations to achieve both exceptional capital and operational cost savings. The highly efficient SATABeast is ideal for data intensive storage applications that require 24x7 online data access.

The Nexsan SATABeast is an enterprise-class RAID (redundant array of independent disks) system designed to deliver performance, reliability and simplified operation in a very dense storage footprint. With a customer reported system reliability rating of more than 99.9 percent, the high density SATABeast is an option for both primary and secondary storage applications, including content archiving, disaster recovery and disk-based backup.

The system's chassis design reduces hard drive stress with anti-accumulative rotational vibration and horizontal midplane cooling technology supporting one of the lowest storage system maintenance rates. As with the company's storage systems, the Nexsan SATABeast features AutoMAID (Automatic Massive Array of Idle Disks) technology for policy-based power management that cuts energy demands up to 70 percent without impacting storage performance.

"Midsize organizations are challenged with continued data growth and seek solutions that not only reduce upfront costs but also lower day-to-day operating expenses. They want to use systems that provide greater power, space and cost efficiencies to drive down their total costs of ownership," said Mark Peters, senior analyst for the Enterprise Strategy Group. "Nexsan's latest generation of products, including the enhanced SATABeast, reflects the company's steadfast commitment to deliver such improvements; with capabilities that will help their customers to save money -- and their partners to compete -- in today's challenging economy and beyond."

The features of the enhanced SATABeast include up to 84 TB of native capacity in 4U, power efficient AutoMAID technology for reduced power consumption, dual-function Fibre Channel and iSCSI connectivity with wire-speed performance. It also offers flexible, scalable and completely OS independent storage system for supporting a range of storage infrastructures, support for RAID 0, 1, 1+0, 4, 5 and 6, and Worldview single GUI interface for simplified management.

"Customers are seeking solutions that achieve capital and operational savings and the enhanced SATABeast is specifically designed to deliver these benefits with power efficient, space efficient and cost efficient technologies," said Bob Woolery, Senior Vice President, Marketing for Nexsan. "We invite customers to unleash the capacity and power of the SATABeast for their data intensive applications and benefit from technology that is proven in thousands of deployments worldwide."

The Nexsan SATABeast is available through the company's worldwide channel network. Pricing for a fully populated SATABeast with 2 TB drives starts at $38,000, and scales based on configuration options.

How to choose my printer to buy?

2009-02-26T23:09:00.000-08:00

How to choose my printer to buy?

Printer is the final stage to creating a document. Since the results you can obtain with different types of printer will vary substantially, here is a guide to help you decide which one of the most suitable for your needs. To begin with, you should take into account that printers vary to cost, speed, print quality, and other factors such as noise or printing method. Technology is evolving so quality that there is always a printer every application or need.

Dot matrix printers use pins to print the dots required to shape a character. They can print text and graphics; however they produce relatively low resolution output – 72 to 180 dots per inch (dpi). They are used to print multi – part forms, self – coping paper and continuous – form labels. They are slower than laser printers but much cheaper.

Inkjet printers operate by projecting small ink droplets onto paper to form the required image. Colour and hues are created by the precise mixing of cyan, magenta, yellow and black inks. Inkjets are fairly fast, quest, and not expensive as laser printer. Nevertheless, you can still expect high quality results because there are some inkjet printers on the market with a resolution of 2,400 dpi.

Laser printers produce output at great speed and with a very high solution of 1 200-2’400 dpi. They scan the image with a special link powder called toner. They are constantly being improved. In terms of speed and image quality, laser printers are preferred by experts for various reasons; for instance, they have wider range of scalable fonts than inkjets, can emulate deferent language systems, and can produce high quality graphics; however, they are still expensive home users.

Thermal transfer printers are used to produce colour images by transferring a wax – based ink onto the paper. They are popular for printing barcodes, labels and medium – resolution graphics.

Imagesetters produce very high – resolution output (up to 3540 dpi) on paper or on the actual film for making the printing plates. In addition, they are extremely fast. Imagesetters are most often used in desktop publishing (DTP). Although they produce the highest quality output, there is a one important disadvantage: they are too expensive to homes or small offices. In modern lithographic printing, images are created on a DTP computer and then output directly to the printing plates, without requiring film as an intermediate step. This technology is called computer to plate or CTP and machine used to called a platesetter.

Finally, we have plotters. Plotters used ink and fine pens held to carriage to draw vary detailed designs on paper. They are used for constraction plans, engineering drawings and other technical illustrations. Nowadays, traditional plotters are being replaced with wide – format inkjets.

Koobface virus attack on face book

2009-02-05T00:53:00.000-08:00

The social site Facebook is facing problem from the thieves they find many ways to lift private information, the Phoenix Better Business Bureau warns. A huge numbers of the new users join Facebook every day -- Christina Higdon with the BBB said many scam artists are mounting ways to obtain a hold of personal information.

"You'll take delivery of a post on your Facebook page, fundamentally saying something to the effect, 'Oh, you look awesome in this video' or 'You look funny in this video.' It will have a link that will take you away from Facebook.

If you click on the link, you could download the Koobface virus.

"It's designed to monitor your internet activity and potentially steal some personal information," Higdon said, adding, "The virus is so difficult to remove that sometimes people have just completely stopped their computers."

windows malware infected over 9 million PCs

2009-01-29T19:19:00.000-08:00

A malicious worm targeting the Windows operating system is "skyrocketing" and indications are that the infections could "get worse," according to security software vendor F-Secure.
The worm, known as Conficker, Downadup, or Kido, is spreading through improperly configured computer networks, USB and other memory sticks as well as Windows PCs without the latest security updates.F-Secure said that the principal target of the malware are corporate Windows servers that have not been patched properly with the latest security updates.The anti-virus and software security company said that an estimate 8.9 million machines were infected with the virus, but other security experts estimate that the number could be much higher than that. A senior technology consultant with anti-virus company Sophos, said in an interview, with UK's BBC news that (he outbreak was "of a scale they had not seen for some time."Microsoft said that the malware has already infected many computers across the world, with machines in China, Brazil, Russia and India having the most number of victims. The worm is believed to be capable of cracking computers with weak passwords, but is able to infect computers through memory sticks without needing to break any password protection.It infects machines by searching for "services.exe," a core Windows file, and attaching itself to that file. After creating a DLL library file with a random name, it runs itself as a service on the machine, creates a web server and downloads files from the hacker's web site. While most malware download from a limited number of hacker websites, Conficker, according to F-Secure, generates hundreds of domain names a day, making it hard to track down the site used to download the hackers' files and shut it down.

what is OVI?

2009-01-23T10:35:00.000-08:00

LAUNCHED last November, ovi by Nokia is the telecommunication giant's latest platform for file and media sharing.Ovi combines the computer, mobile device and online environment into an easy-to-use, consistent and complete experience. Just download Ovi to your mobile internet-compatible Nokia mobile device to begin sharing.On the website Ovi.com, now being offered as a public beta, the programme helps sync and manage user's personal information online. It offers free functionality for synching your calendar, contacts, notes and tasks between a Nokia mobile phone and the website.
Ovi.com users can now create an online backup of their important information, which they can access andedit anytime when connected to the internet. This helps to safeguard user personal information in case their device is lost or stolen.
Users can also use the website to discover Nokia services in media sharing, maps, music and games, and connect with them while browsing the Net on a Nokia mobile device.
For those who want to share their images or videos with friends, they can use a Flickr media stream to upload and create their own media archive, users can also back up the contents of their Nokia device and drag-and-drop photos and videos to Share on Ovi, a service that helps manage their personal media.For those who want to store files and information from their Nokia mobile device to their computer, there is the Nokia Ovi Suite for PC application.
Another helpful service is Files on Ovi, which allows users to access remote PC files.anytime, from any browser-enabled mobile phone or computer. Even if the computer is offline, users can access the files in their private, secure Anytime Files storage.
if users are away from their computer but need to send a file urgently, Files on Ovi allows them to email a link to the PC files to one or more people. Even large files can be accessed, without having to download them to your mobile phone or having them clog up the recipient's inbox.' Recipients can view the files stored on users PCs and choose to download them directly to their own PCs.
in order to ensure secure access, the link is password-protected, and the user can decide who can access files and folders and how long the link is active.
Ovi is accessible to owners of the Nokia N96, N95, N95 8GB, N85, N82, N81, N79, N78, N76, N73, N71. N66, the Nokia 6220 Classic, 6210 Navigator and 5320 XPressMusic.

Rise of the netbook

2009-01-20T19:03:00.000-08:00

As more of what we do moves online, why not design a simple notebook computer that's intended primarily to gel us there?
That's the idea behind the net book, and the success of early models from makers including Asus and Dell suggest that 2009 will see this category of computer gaining widespread attention. The appeal of net books is obvious: they're about half the size, and half the weight, of a typical all-purpose notebook computer. They focus on what matters to working online: a decent keyboard and a nice- screen, fast wireless Internet connectivity, and enough local storage- in the form of a solid state disk - to store the essentials. Gone are the CD/DVD, power hungry screens, and traditional hard drives. The result: a notebook that's a joy to carry. pleasant In use. and that gets vein online to check your e-mail, write documents, or surf the Internet This year will no doubt be all about saving money for many, and the tech products that w ill excite us next year will justify their place in our lives by providing an obvious return on investment They'll help us In save time, money, and lo do more with less. What more could we ask for?

online apple store take off

2009-01-20T18:16:00.000-08:00

In 2009, you'll be tempted to move more of your real work online. The Internet is quickly becoming not just a place for research and Leisure but also the platform on which all business documents can be created and, more importantly, shared.
Google Docs - with its very capable and free online wind processor, spread-sheet, and presentation program - has led the way. But Think free Office and Zoho (below) represent significant competition. Even Microsoft has announced plans to move its office suite of productivity tools to an online format. All of this is part of a movement that's being widely referred to as "cloud computing", which essentially refers in software and applications being delivered to you over the Internet. With "always on" internet connections becoming increasingly common, the case for working and storing documents online is compelling. You no longer have the concern over where your documents are stored, since they're ,AL-ways available from any computer connected to the Internet. And because you're working online, you have the ability to collaborate with others, no matter where they're located, to this point, the main obstacle that online app vendors have to overcome is reluctance among users.
Wild all of the big players in the industry moving lo online applications, expect to have your reluctance challenged in 2009.

SSDs threaten hard drives

2009-01-20T07:39:00.000-08:00

Solid slide disks (SSDs) are faster, cooler more durable quieter, and use less power i Man traditional hard drives. So what's not to like?
capacity and cost Current SSDs top out at around 128 GB, and they cost almost 10 times more per gigabyte than the hard drives that are in most people's PCs today
When demand is there and it is with SSDs - cost will come down. Expect SSDs to complete seriously for your attention in 2009, especially if you're looking for notebook
computer storage-, where capacity needs are often tower than for desktop PCs. A 64 GB SSD would provide all the storage that most notebook users need.
Sure, a traditional hard drive of the same capacity is a lot cheaper, but when it comes lo speed and having the peace of mind that your hard drive won't decide to die in the blink of an eye, a bit of extra cost is worthwhile many.
Today's major hard drive makers -Seagate, Hitachi, Western Digital, Sam sung aren't going lo like the shift to SSI )s because the companies well positioned to move in this market are chip makers, mil disk makers. But the Seagates of the world are starting to play now. as well, which should add yet more downward pressure to SSD prices.

Canon EOS 1000D boasts sharp

2009-01-20T07:13:00.000-08:00

THE Canon EOS 1000D boasts sharp 10.1 megapixel images, life-like coiour, a wealth of camera functions while being highly compatible with the full range of Canon lenses & Speedlites.
Canon's new addition is a force in driving down the barriers towards the adoption of high performance cameras and systems, by reducing costs, boosting capabilities, while improving ease of use.
The EOS 1000D is the best-value platform for young enthusiasts who are passionate in exploring the art and craft of professional pho-tography. Specifications include a single- piece 10.1 megapixel APS-c size CMOS sensor, DIGIC III image processor offers life-like, natural colour processing at high speed, noise reduction for high ISO speeds & long exposure and 2.5-inch live-view LCD.

HP Touch Smart personal computer (PC)

2009-01-20T07:08:00.000-08:00

REQUIRING only a power cord for set up, the HP Touch Smart personal computer (PC) combines a 22-inch diagonal, high-definition wide screen display with a powerful, energy-efficient Intel Core 2 Duo processor in a single, integrated design.While providing all the capabilities of a traditional PC, selected models also offer an array of entertainment features, including a TV tuner for watching and recording TV shows, a built-in DVD burner and integrated premium stereo speakers.A low-profile wireless keyboard, wireless mouse and integrated WLAN offer a truly clutter-free, wireless experience; and the PC's adjustable screen tilts up and down for maximum viewing comfort. The HP Ambient Light lets people set mood lighting and see the keyboard in the dark.

Stay organized SONY Ericsson

2009-01-20T07:04:00.000-08:00

SONY Ericsson has added a new line, the G series, which starts with the Symbian UIQ based G900.This candy bar handset sports a 2.4" QVGA touch screen, and comes with 160MB of internal memory and a Memory Stick Micro (M2) card slot. The Opera web browser comes pre-installed and the Sony Ericsson jf G900 also fea-''JF' tures FM radio, Bluetooth 2.0 with A2DP stereo and support for Sony Ericsson's Play Now music store. The touch display allows for handwriting recognition, and users can easily create persona! Notes and save them as stickier, on the handset's home screen.The Sony Ericsson G900 candy bar is available in dark red or dark brown color schemes.

Picture perfect Samsung

2009-01-20T06:55:00.000-08:00

DESIGNED for mobile multimedia, Samsung innovates provides devout tech addicts with the most innovative 24/7 multimedia entertainment features.
it also offers a fun, easy to use experience for those who want to get the most out of their mobile phones.
With the 8-megapixel camera, pre-embedded 3D games, high speed data connections and much
more other features will help users gain the true benefits of mobile entertainment.
Also, supporting a wide range of video player formats including DivX, WMV, Real Player and MPEG4, users can enjoy an exciting pocket cinema experience.
its external dual speakers and 3D surround sound supported by DNSe 2.0 make every video clip and movie more realistic than ever.

What does a camcorder do?

2008-12-30T21:09:00.000-08:00

A camcorder, or digital video camera, records moving pictures and converts them into digital data that can be stored and edited by a computer with special video editing software.
Digital video cameras are used by home users to create their own movies, or by professionals in
Computer art and video
Conferencing.
They are also used to send live video images via the Internet. In this case they are called web cameras, or webcams.

What does a digital camera do?

2008-12-30T21:08:00.000-08:00

A digital camera takes photos electronically and converts them into digital data (binary codes made up of 1 s and Os). It doesn't use the film found in a traditional camera; instead it has a special light-sensitive silicon chip.

Photographs are stored in the camera's memory card before being sent to the computer. Some cameras can also be connected to a printer or a TV set to make viewing images easier. This is usually the case with camera phones - mobile phones with a built-in camera.

What does a scanner do?

2008-12-30T21:06:00.000-08:00

A scanner'sees'images and converts the printed text or pictures into electronic codes that can be understood by the computer. With a flatbed colour scanner, the paper with the image is placed face down on a glass screen, as with a photocopier. Beneath the glass are the lighting and measurement devices. Once the scanner is activated, it reads the image as a series of dots and then generates the digitized image that is sent to the computer and stored as a file.
The scanner operates by using three rotating lamps, each of which has a different coloured filter: red, green and blue.The resulting three separate images are combined into one by appropriate software.

What is a computer?

2008-12-30T20:31:00.000-08:00

A computer is an electronic machine which can agree to data in a confident form, process the data, and provide the results of the processing in a particular format as information.
First, data is fed into the computer's memory. Then, when the program is run, the computer performs a set of instructions and processes the data. Finally, we can see the results (the output) on the screen or in printed form
A computer system consists of two parts: hardware and software. Hardware is any electronic or mechanical part you can see or touch. Software is a set of instructions, called a program, which tells the computer what to do. There are three basic hardware sections: the central processing unit (CPU), main memory and peripherals.
Perhaps the most influential component is the central processing unit. Its function is to execute program instructions and coordinate the activities of all the other units. In a way, it is the 'brain' of the computer. The main memory (a collection of RAM chips) holds the instructions and data which are being processed by the CPU. Peripherals are the physical units attached to the computer. They include storage devices and input/ output devices.

Storage devices (hard drives, DVD drives or flash drives) provide a permanent storage of both data and programs. Disk drives are used to read and write data on disks. Input devices enable data to go into the computer's memory. The most common input devices are the mouse and the keyboard. Output devices enable us to extract the finished product from the system. For example, the computer shows the output on the monitor or prints the results onto paper by means of a printer.
On the rear panel of the computer there are several ports into which we can plug a wide range of peripherals - a modem, a digital camera, a scanner, etc. They allow communication between the computer and the devices. Modern desktop PCs have USB ports and memory card readers on the front panel.