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Saturday, March 14, 2009

Time measurement with watch

A watch is a timepiece that is made to be worn on a person. The term now usually refers to a wristwatch, which is worn on the wrist with a strap or bracelet. In addition to the time, modern watches often display the day, date, month and year, and electronic watches may have many other functions.

Most inexpensive and medium-priced watches used mainly for timekeeping are electronic watches with quartz movements. Expensive, collectible watches valued more for their workmanship and aesthetic appeal than for simple timekeeping, often have purely mechanical movements and are powered by springs, even though mechanical movements are less accurate than more affordable quartz movements.

Before the inexpensive miniaturization that became possible in the 20th century, most watches were pocket watches, which often had covers and were carried in a pocket and attached to a watch chain or watch fob. Watches evolved in the 1600s from spring powered clocks, which appeared in the 1400s.

3D scanner and it work



A 3D scanner is a device that analyzes a real-world object or environment to collect data on its shape and possibly its appearance (i.e. color). The collected data can then be used to construct digital, three dimensional models useful for a wide variety of applications. These devices are used extensively by the entertainment industry in the production of movies and video games. Other common applications of this technology include industrial design, orthotics and prosthetics, reverse engineering and prototyping, quality control/inspection and documentation of cultural artifacts.

Inkjet printers information


Inkjet printers operate by propelling variably-sized droplets of liquid or molten material (ink) onto almost any sized page. They are the most common type of computer printer for the general consumer due to their low cost, high quality of output, capability of printing in vivid color, and ease of use.

Like most modern technologies, the present-day inkjet has built on the progress made by many earlier versions. Among many contributors, Epson, Hewlett-Packard and Canon can claim a substantial share of the credit for the development of the modern inkjet. In the worldwide consumer market, four manufacturers account for the majority of inkjet printer sales: Canon, Hewlett-Packard, Epson, and Lexmark.

The emerging ink jet material deposition market also uses ink jet technologies, typically piezoelectric jets, to deposit materials directly on substrates.

Netbook uses Web surfing in a small package



Since the invention of the smart phone, many people thought it would be the perfect solution to the big laptop. The user would now be able to surf the web and check emails on their phone. This trend soon slowed down when many users noticed it is a lot harder to write an email or surf the web on a small 2.5”- 3.5” screen.

The netbook is a miniature version of the laptop and as portable as the smart phone. The netbook is becoming the next big move in the technology world and many companies like Acer, Asus, Dell, Everex, Hp, Lenovo, MSI and Samsung all jumped onto this new trend and put out a newer smaller version of the netbook adding more features such as Bluetooth, a 6 cell battery and more USB ports. Some features missing from the netbook are a CD/DVD player and a standard size keyboard. Due to the netbook's small size, there is no place to insert a CD/DVD player, but many do come with multiple USB ports allowing the user to add on hardware such as, an external hard drive, CD player, mouse and a full size keyboard. The netbook satisfies both the battery life issue and the portability. Depending on the usage of the netbook the battery life is on an average 4 to 5 hours for a 3 cell battery and 6 to 9 hours for a 6 cell battery. They weigh on an average 2 to 3 pounds, that is 3 pounds lighter than a 14” laptop. They come in three different screen sizes 8.9”, 10.1”and 10.2” making it a lot more portable then a 15” laptop.

The operating system for these netbooks is Windows XP or Linux. Windows Vista requires too much memory to run smoothly on a netbook and consumes more battery life. All these netbooks vary from different colors to features and range in price from $299 to $500. If you’re looking for a laptop that is portable with a long battery life, then one of these netbooks would definitely suit you.

You can find one of these netbooks at your local electronic store or online at places like:

Friday, March 13, 2009

Sound boxTo Hear Sound


Sound box is used to hear sound through it and if it contains the amplifier then it can supply the sound loudly.
A sound box or sounding box (sometimes written sound box) is an open chamber in the body of a musical instrument which alters the instrument's tone quality by modifying the way the instrument resonates. Most instruments respond more strongly to vibrations at certain frequencies, known as resonances. The sound box typically adds resonances at lower frequencies, enhancing the lower-frequency response of the instrument.

The Application Area of Head Phone


Headphones can be used both with fixed equipment such as CD or DVD players, home theater, personal computers and with portable devices (e.g. digital audio player/mp3 player, mobile phone, etc.). Cordless headphones do not need to be connected via a wire, receiving a radio or infrared signal encoded using a radio or infrared transmission link, like FM, Bluetooth or Wi-Fi. These are actually made of powered receiver systems of which the headphone is only a component, these types of cordless headphones are being used more frequently with events such as a silent disco or Silent Gig.

Skullcandy Headphone:

Skullcandy's new G.I. Headphones come in a variety of military-inspired styles, and even come with bullets across the leather band. They cost $69.95 - which is a bit much considering they're purely fashion-oriented - but they look pretty hardcore. Bullets on the band! These are the kind of headphones you should wear while eating eating a raw steak and spitting.

Thursday, March 12, 2009

Acer TravelMate 6293 top-of-the-line all-purpose laptops.

The ThinkPad T400 unit we tested scored a 92 on our WorldBench 6 test suite, slightly outperforming the Acer TravelMate 6293 among top-of-the-line all-purpose laptops. Applications load swiftly on the 7200-rpm, 160GB hard drive, which uses an Intel Core 2 Duo 2.53GHz T9400 processor with 2GB of RAM and a 256MB ATI Radeon Mobility HD 3400 GPU. Regarding the GPU, however, it's best to keep your graphics expectations low: In our tests, game graphics fell flat, as indicated by the T400's frame rate of 16 frames per second on Enemy Territory: Quake Wars run at 1024 by 768 resolution. But that result isn't a huge shock; this notebook is strictly business.




About Acer TravelMate :
Depending on the model, the TravelMate Series' standard features may include: an Ethernet adapter, a Wireless Ethernet adapter, one or more PC Card slot. They also include USB 2.0 ports, an optical drive, and 1 VGA port, Windows 2000, Windows XP or Vista along with specific acer own brand software. Some come with a webcam and more bundled software that allows users to manipulate CD data, operate the included webcam, organise windows and empowering technology, a system that is designed to allow the safer, more comftable and practical use of the notebook. More recent versions feature dual core processors along with a 5 in 1 card reader, and a large hard drive and a lot of memory.

Nokia N95 mobile and its fasilities

Now a dayes mobile phone is very common and continuous friend to all and to supply the mobile
to user the nokia is most famous in the world.

Nokia N95:


The Nokia N95 (N95-1, internally known as RM-159) is a smartphone produced by Nokia. The N95's functions include those of a camera phone and portable media player, in addition to offering e-mail, web browsing, local Wi-Fi connectivity and text messaging.
Specification sheet:

Form factor: two-way slider Operating System: Symbian OS v9.2, S60 3rd Edition, Feature Pack 1 Screen: QVGA Matrix, diagonal 2.6" (N95-1, N95-3, N95-5) or 2.8" (N95-2, N95-4, N95-6), 16 million colours, 240x320 pixels Size: 99 x 53 x 21mm CPU: Dual 332 MHz Texas Instruments OMAP 2420 (ARM11-based)[13] Internal Dynamic Memory (RAM): 128 MB (55.9 MB for N95-1) Internal Flash Memory: 147.3 MB (8 GB for 8 GB versions) Camera: Frontal CIF video call & Main rear 5 Megapixel camera with auto-focus, Carl Zeiss optics, capture Aspect ratio (image) 4/3 (1.33:1) Video recording: yes, VGA (640x480) video capture of up to 30 fps, same aspect ratio as camera see above Graphics: Fully HW accelerated 3D (OpenGL ES 1.1, HW accelerated Java 3D) Memory card slot: Yes, microSD/microSDHC (except N95-4; 8 GB model) Bluetooth: Yes, 2.0 + EDR GPS: Texas Instruments GPS5300 NaviLink 4.0 (receiver located under the 0 key) ...........and so many other facilities

Nokia N97 for comfortable uses.

The Nokia N97 is an upcoming "mobile computer" by Nokia, announced on December 2, 2008.It will be Nokia's second touch screen phone (The first being Nokia 5800 XpressMusic) based on the Nokia S60 platform.

Specifications:
1.Network: WCDMA 900/1900/2100 (HSDPA), EGSM 850/900/1800/1900 MHzUser 2.Interface:S60 5th Edition
3.Dimensions:117.2 x 55.3 x 15.9 mm (L x W x H) *18.25 mm at camera area
4.Weight:Approx. 150 g
5.Display:3.5 inch TFT with up to 16 million colors (640×360 pixels)
6.Battery: Nokia Battery BP-4L, 1500 mAh
7.32 GB on-board memory
8.microSD memory card slot
9.Video playback:MPEG-4 / SP and MPEG-4 AVC/H.264, up to 30 fps, up to VGA resolution
10.RealVideo up to QCIF @ 30 fps
11.Windows Media (WMV9) up to CIF @ 30 fps
12.Flash Lite 3.0 / Flash Video in internet browser
13.Music playback: MP3, AAC, eAAC, eAAC+, WMA
14.5 megapixels camera (2584 x 1938 max)
16.Video capture: MPEG-4 VGA (640 x 480) at up to 30 fps
17.Flash: Dual LED camera flash and video light
18.Talk time:Up to 320 min (3G), 400 min (GSM)
19.Standby time:Up to 400 hrs (3G), 430 hrs (GSM)
20.Video playback:Up to 4,5 hours (offline mode)
21.Music playback:Up to 37 hours (offline mode)
22.WLAN IEEE 802.11b/g with UPnP support
23.Micro-USB connector
24.3.5mm stereo headphone plug and TV-out support (PAL/NTSC)
25.Bluetooth wireless technology 2.0 with A2DP stereo audio, enhanced data rates (EDR)
26.GPS receiver with support for assisted GPS (A-GPS)



Latest Nokia E61 Mobile Phones


The Nokia E61 is a smartphone from the Eseries range, a Series 60 Third Edition device with a QWERTY keyboard targeting business users in the European market.

The E62 is substantially similar but without an 802.11 WiFi chipset or W-CDMA (UMTS) 3G support. E61 supports 900/1800/1900 bands, while E62 can operate in 850/900/1800/1900 in order to support American networks.

Nokia E61i is the latest model which has been released recently and it is more superior in every aspect to its ancestor E61.

Nokia's research and development team have kicked it up a gear with an attractive "aeon" concept phone showing up in the research & development section of the company's website. The most prominent design feature of aeon is a touchscreen that stretches over the full surface area of the phone.


Wednesday, March 11, 2009

Motherboard as a main component of computer

The computer is the most useful and wonderful creation of science.The main parts of computer is motherboard.We mean by motherboard, the main board of a computer, usually containing the circuitry for the central processing unit, keyboard, and monitor and often having slots for accepting additional circuitry.

In other sentensce,a motherboard is the central printed circuit board (PCB) in some complex electronic systems, such as modern personal computers. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple computers, the logic board. It is also sometimes casually shortened to mobo.

Most computer motherboards produced today are designed for IBM-compatible computers, which currently account for around 90% of global personal computer sales[citation needed]. A motherboard, like a backplane, provides the electrical connections by which the other components of the system communicate, but unlike a backplane, it also hosts the central processing unit, and other subsystems and devices.

Motherboards are also used in many other electronics devices.A typical desktop computer has its microprocessor, main memory, and other essential components on the motherboard. Other components such as external storage, controllers for video display and sound, and peripheral devices may be attached to the motherboard as plug-in cards or via cables, although in modern computers it is increasingly common to integrate some of these peripherals into the motherboard itself.
An important component of a motherboard is the microprocessor's supporting chipset, which provides the supporting interfaces between the CPU and the various buses and external components. This chipset determines, to an extent, the features and capabilities of the motherboard.
History:

Prior to the advent of the microprocessor, a computer was usually built in a card-cage case or mainframe with components connected by a backplane consisting of a set of slots themselves connected with wires; in very old designs the wires were discrete connections between card connector pins, but printed-circuit boards soon became the standard practice. The central processing unit, memory and peripherals were housed on individual printed circuit boards which plugged into the backplane.

During the late 1980s and 1990s, it became economical to move an increasing number of peripheral functions onto the motherboard (see above). In the late 1980s, motherboards began to include single ICs (called Super I/O chips) capable of supporting a set of low-speed peripherals: keyboard, mouse, floppy disk drive, serial ports, and parallel ports. As of the late 1990s, many personal computer motherboards support a full range of audio, video, storage, and networking functions without the need for any expansion cards at all; higher-end systems for 3D gaming and computer graphics typically retain only the graphics card as a separate component.

USB hard drive to data storage

USB hard drive is very important to carry data,writen information,image,vedio,song etc. from one place to anothr.It is so small that we can take it at the bottom of our pocket.

A USB flash drive consists of a NAND-type flash memory data storage device integrated with a USB (universal serial bus) interface. USB flash drives are typically removable and rewritable, much smaller than a floppy disk (1 to 4 inches or 2.5 to 10 cm), and most USB flash drives weigh less than an ounce. Storage capacities typically range from 64 MB to 64 GB with steady improvements in size and price per gigabyte.
First commercial product:

Trek Technology and IBM began selling the first USB flash drives commercially in 2000. Singaporean company Trek Technology sold a model dubbed the "ThumbDrive," and IBM marketed the first such drives in North America, with its product the "DiskOnKey" (which was manufactured by the Israeli company M-Systems). IBM's USB flash drive became available December 15, 2000, and had a storage capacity of 8 MB, more than five times the capacity of the (at the time) commonly used floppy disks.
Second generation:

Modern flash drives have USB 2.0 connectivity. However, they do not currently use the full 480 Mbit/s (60MB/s) the USB 2.0 Hi-Speed specification supports due to technical limitations inherent in NAND flash. The fastest drives currently available use a dual channel controller, although they still fall considerably short of the transfer rate possible from a current generation hard disk, or the maximum high speed USB throughput

Tuesday, March 10, 2009

Camera reviews for know

Camera is an wonderful creation of science.It is nothing but the magic of the reflection of light.A photographer knows the inportance of camera.Today I will give you some short information about a camera.
A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.
History:
The forerunner to the camera was the camera obscura.The camera obscura is an instrument consisting of a darkened chamber or box, into which light is admitted through a convex lens, forming an image of external objects on a surface of paper or glass, etc., placed at the focus of the lens.The camera obscura was first invented by the Iraqi scientist Ibn al-Haytham (Alhazen) as described in his Book of Optics (1015-1021).Irish scientist Robert Boyle and his assistant Robert Hooke later developed a portable camera obscura in the 1660s.
Design:
Camera design is an intricate and specialized field. All designs begin with conceptualizing a product and evaluating the potential market and the needs of the consumer for the proposed product. Designs begin at computer-aided design (CAD) work stations, where the product's configuration and workings are drawn. The designer selects the materials, mechanics, electronics, and other features of design and construction, including interfaces with lenses, flash units, and other accessories.
For cameras like many other technical products, the future is electronic. The digital still camera introduced in 1995 stores approximately 100 pictures electronically. Instead of a viewfinder or eyepiece, the camera has a color LCD screen similar to the view-type screen on some video cameras, so photos can be viewed instantly. It can be connected by cables to a computer, television, or VCR, so pictures can be transferred to screen, tape, or digitized electronically
Digital cameras:
Today digital cameras are available everywhere in the world.There are some famous companies who produce stander label camera.

Acro , Adams, Adams & Westlake ,Adobe, Balcar, Balda, Banno, Barnet Ensign, Bardin, Calumet,

Cambo,Camera Man,
Cam-O, Candid,Dacora,Daidō,Daiichi Kikō,Daiichi Kōgaku (Zenobia),Daiichi Kōki,Daimaru,Earth Ebner,Ebony,Echt,Eder,Efke,Ehira,Eho-Altissa, Eikōdō, FAP (Norca), FED,Feinmess,Ferrania, Fex,Fodor,GAF,Gallus, Gandolfi,Gassner and Marx,Gaumont,Hachiyō (Alpenflex),Hagimoto,Haking (Halina), Hanimex, ICA, I.C.A.F.,Ichikawa,Ichikawaya, Ichizuka,
Kadunder, Kaftanski,Kafu,Kagiya,Laack,Lancaster,Lark Camerz


Leaf, Leica,Maki Shōji,Mamiya,Manhattan Optical Co ,Manufrance,Mars, Nagaoka,Nagata,Nagel,

Nakamura Patē Shōkai, Nakayama,Nikon,Nippon Kōgaku,
Nippon Kōsokki (Taron),Nishida,Olympus,Ōmiya (Hansa),Omori,Onoon , Pentacon

(Praktica),Pentax,Perken Son & Rayment,Petri.




Latest speed of FBDIMM and RDIMM modules to market



You are working in computer and your computer can not keep cought everything in it,is it possoble? The answer is yes and the condition is that if your competer has no ram,then it possible. Then what is ram? The ramisthe part of a computer’s memory available to execute programs and temporarily store data. The memory to which the operator has random access can usually be used for both reading and writing. Unless the file has been saved, RAM data are automatically erased when the computer is turned off.Other sense:the most common computer memory which can be used by programs to perform necessary tasks while the computer is on; an integrated circuit memory chip allows information to be stored or accessed in any order and all storage locations are equally accessible

Types
:

There are two different types of RAM: DRAM (Dynamic Random Access Memory) and SRAM (Static Random Access Memory). The two types differ in the technology they use to hold data, with DRAM being the more common type. In terms of speed, SRAM is faster. DRAM needs to be refreshed thousands of times per second while SRAM does not need to be refreshed, which is what makes it faster than DRAM. DRAM supports access times of about 60 nanoseconds, SRAM can give access times as low as 10 nanoseconds. Despite SRAM being faster, it's not as commonly used as DRAM because it's so much more expensive. Both types of RAM are volatile, meaning that they lose their contents when the power is turned off.


Random-Assess Memory Card (usually known by its acronym, RAM) is a form of computer data storage. Today it takes the form of integrated circuits that allows the stored data to be accessed in any order (i.e., at random). The word random thus refers to the fact that any piece of data can be returned in a constant time, regardless of its physical location and whether or not it is related to the previous piece of data.

This contrasts with storage mechanisms such as tapes, magnetic discs and optical discs, which rely on the physical movement of the recording medium or a reading head. In these devices, the movement takes longer than the data transfer, and the retrieval time varies depending on the physical location of the next item.
History

An early type of widespread writable random access memory was the magnetic core memory, developed from 1949 to 1952, and subsequently used in most computers up until the development of the static and dynamic integrated RAM circuits in the late 1960s and early 1970s. Before this, computers used relays, delay line memory or various kinds of vacuum tube arrangements to implement "main" memory functions (i.e., hundreds or thousands of bits), some of which were random access, some not. Latches built out of vacuum tube triodes, and later, out of discrete transistors, were used for smaller and faster memories such as registers and (random access) register banks. Prior to the development of integrated ROM circuits, permanent (or read-only) random access memory was often constructed using semiconductor diode matrices driven by address decoders

RAM disks:
Software can "partition" a portion of a computer's RAM, allowing it to act as a much faster hard drive that is called a RAM disk. Unless the memory used is non-volatile, a RAM disk loses the stored data when the computer is shut down. However, volatile memory can retain its data when the computer is shut down if it has a separate power source, usually a battery.

Desktops have had the PC2-6400 DDR2 800MHz generation for a quarter or more, but the Fully Buffered and ECC Registered and now in this higher performace speed market as well. The 2nd gereration Apple Mac Pro and xServe have shown to be some of the first to use this newest entry into the FBDIMM market.

Need a single 4GB desktop DDR2 module. If your running a 64-bit version of Windows Vista basic, premium Ultimate, Business or Enterprise you can now load that slot up with 4gb chips! With motherboards for desktop PC computers having only four sockets at time you can now get the MAXIMUM available memory you need.

Latest speed of FBDIMM and RDIMM modules to market:

Desktops have had the PC2-6400 DDR2 800MHz generation for a quarter or more, but the Fully Buffered and ECC Registered and now in this higher performace speed market as well. The 2nd gereration Apple Mac Pro and xServe have shown to be some of the first to use this newest entry into the FBDIMM market.

Need a single 4GB desktop DDR2 module. If your running a 64-bit version of Windows Vista basic, premium Ultimate, Business or Enterprise you can now load that slot up with 4gb chips! With motherboards for desktop PC computers having only four sockets at time you can now get the MAXIMUM available memory you need.








DVD drive as an inportant part for computer


DVD drive is now an important part for a computer.We mean dvd drive is
a high-density compact disk for storing large amounts of data, especially high-resolution audio-visual material.
DVD, also known as "Digital Versatile Disc" or "Digital Video Disc," is a popular optical disc storage media format. Its main uses are video and data storage. Most DVDs are of the same dimensions as compact discs (CDs) but store more than six times as much data.
Creation time:
In 1993, two high-density optical storage formats were being developed; one was the MultiMedia Compact Disc (MMCD), backed by Philips and Sony, and the other was the Super Density (SD) disc, supported by Toshiba, Time Warner, Matsushita Electric, Hitachi, Mitsubishi Electric, Pioneer, Thomson, and JVC.
High-density double-sided compact disc that can store up to 17 gigabytes of digital data-roughly the equivalent of 24 CDs. Although believed to be a better medium for distributing feature-length films than videocassettes, less than 1% of U.S. Households currently has a DVD video player. DVDs are primarily used to store encyclopedias and interactive magazines and games. It is expected that DVD-ROM will eventually replace CD-ROM for storing audio, video, and text data.

Monday, March 9, 2009

Touch Mobile network


Touch Mobile is a brand of Globe Telecom, the second largest telecommunications company in the Philippines. Touch Mobile was launched on September 12, 2001 as a family-centric value brand for Broad CD market. Since then, it has fine-tuned its services to cater to D/E subs with a special focus on blue-collar users


Apple iPod Touch:


If the Touch is the player that you want, that you really, really want, you've probably got one already. Fence-sitters should stay there until next year when third-party apps or version 2.0 comes out.


The reach of ‘One-Touch’ mobile network in the Volta Region will increase by about 350 percent by the last quarter of this year as Vodafone-Ghana Telecom gears up for competition in the mobile telephony business in Ghana.

Mr David Venn, Chief Executive Officer (CEO) of Vodafone Ghana, who made the projection at a meeting with Togbe Afede XIV, Paramount Chief of the Asogli State, in Ho on Saturday, said all existing 21 transmission towers would be strengthened and another 63 added throughout the region.

Mr Venn said Vodafone, which bought majority shares of Ghana Telecom last year, was expected to complete its transition with a stronger technical capacity and human resource base to offer clients excellent services associated with Vodafone worldwide.
He said Vodafone would increase fixed lines and access to high speed internet service in the region in the coming months.

Mr Venn donated GH¢3,000.00 to the Asogli Educational Fund and expressed interest in replicating in Ghana, a project of research and documentation of cultural practices of the people of Zambia his company supported, while in the East African country.

Head phones & Wireless headphones

Headphones:
Headphone is a very important output device for a computer user in noise place.We man by headphone A receiver, as for a telephone, radio, or stereo, held to the ear.Headphones are a pair of small loudspeakers, or less commonly a single speaker, with a way of holding them close to a user's ears and a means of connecting them to a signal source such as an audio amplifier, radio or CD player. They are also known as earphones, ear buds, stereo phones, headsets or, informally cans. Head-mounted speakers. Headphones have a strap that rests on top of the head, positioning a pair of speakers over both ears. For listening to music or monitoring live performances and audio tracks, both left and right channels are required. When used with the telephone, a microphone is attached, and only one speaker is required
Not only are headphones used by people who want to listen to music without disturbing others, but they have been used for years by critical audiophiles. Headphones can provide an extraordinary listening experience that is far more affordable than room speakers. Quality headphones can sound as good or better than room speakers costing tens of thousands of dollars because it takes a lot less power to drive headphones than it does regular speakers. Most important, headphones create a sealed listening chamber. Although necessary to get the best sound from floor speakers, people rarely configure their hi-fi systems to match their room acoustics. With headphones, there is little or no setup. See ear buds, earphones, virtual headphones and headset.
Wireless headphones:
Wireless Headphone System two wireless headphones with IR transmitter,each headphone features volume control and auto on/off switch

Wireless keyboard and mouse for computer and laptop.



wireless keyboard and wireless mouse are very fantastic and easily handled input device for computer.They do not make wire problem.

This Microsoft Wireless Laser Desktop 4000 keyboard and mouse kit is built for comfort and designed with style in mind! The comfort curve keyboard helps your hands rest in a more natural position and with the High Definition Laser Mouse, your desktop is ready for work and play!

The Wireless keyboard is equipped to simplify your experience with Hot Keys, Enhanced F Keys, Media Center buttons and My Favorite Keys. Plus, with built-in zoom on the keyboard you can easily zoom in to edit detail or zoom out of the entire image. The plush, Cushioned Palm Rest provides better, more comfortable support while you type.

With the ergonomically designed high definition Laser Mouse you can experience more responsiveness, greater precision, and smoother tracking while you work and play in comfort. Use the 4-way scrolling with Tilt to easily and efficiently scroll side to side as well as up and down in worksheets, Web pages, photos, and more!

Work and Play with the Wireless Freedom of this Microsoft Wireless Laser Desktop 4000 Keyboard & Laser Mouse Kit!

PC mouse information




The mouse is very important input device to operate the computer easily .But do you know the definition of mouse?
To say scientifically,mouse is a small box-shaped device with wheels that is moved about by hand over a flat surface and generates signals to control the position of a cursor or pointer on a computer display.
The most popular pointing device. It was called a "mouse" because it more or less resembled one, with the cord being the tail. Although key commands can often substitute, graphical interfaces (GUIs) are designed for pointing devices. However, graphics applications, such as CAD and image editing, demand a pointing device. On a PC, the mouse connects to the PS/2, USB or serial port
First come to market:
The first marketed integrated mouse – shipped as a part of a computer and intended for personal computer navigation – came with the Xerox 8010 Star Information System in 1981. However, the mouse remained relatively obscure until the appearance of the Apple Macintosh; in 1984 a prominent PC columnist commented the release of this new computer with a mouse: “There is no evidence that people want to use these things.”

Optical mouse:

Optical mouse is used for both as laptot mouse and personal computer.How it works actually?
Developed by Agilent Technologies and introduced to the world in late 1999, the optical mouse actually uses a tiny camera to take 1,500 pictures every second. Able to work on almost any surface, the mouse has a small, red light-emitting diode (LED) that bounces light off that surface onto a complimentary metal-oxide semiconductor (CMOS) sensor.
The CMOS sensor sends each image to a digital signal processor (DSP) for analysis. The DSP, operating at 18 MIPS (million instructions per second), is able to detect patterns in the images and see how those patterns have moved since the previous image. Based on the change in patterns over a sequence of images, the DSP determines how far the mouse has moved and sends the corresponding coordinates to the computer. The computer moves the cursor on the screen based on the coordinates received from the mouse. This happens hundreds of times each second, making the cursor appear to move very smoothly.

Sunday, March 8, 2009

India mobile market defies gloom

NEW DELHI (AFP) – Amidst all the economic gloom, one business is still booming -- India's mobile phones -- thanks to the world's lowest call rates driven by fierce competition among cellular operators, experts say.

And while economists forecast a sharp slowdown in India's economic growth, no downturn is seen in the mobile market, which added a record 15.4 million wireless users in January -- the biggest monthly growth ever, according to the latest official data.

"India represents a unique mobile market where competition is the highest and the tariffs are the lowest," T.V. Ramachandran, head of the Cellular Operators Association of India, told AFP.

And it's not just affluent Indians who are buying phones in the world's fastest growing cellular market -- India outstripped China last April.

Most of the growth has been driven by labourers, maids, drivers and other lowly paid people in cities and increasingly in rural areas as innovative marketing has made phoning cheap enough for some of the poorest pockets.

"One of the biggest factors in this growth has been affordability both in terms of handset and tariff plans," said Girish Trivedi, a senior analyst at consultancy Frost & Sullivan.

Customers can pay less than two cents for a call and 13 dollars for a new mobile handset. Second-hand ones can cost far less.

For many, mobile phones mean their livelihood.

Sixty-two-year-old house painter Akshaye Jha runs his two-man business in New Delhi from his mobile phone.

"It means people can get in touch with me. I get more jobs," said Jha.

"The mobile has become a device for the masses... an agent of change," transforming ways of communicating and doing business, Ramachandran said.

People are also buying phones even when they don't need them for work.

Munshi, a security guard, never learnt how to read numbers and gets other people to dial. He keeps his handset in his breast pocket and starts with surprise when it rings with a bouncy Hindi pop tune.
"It keeps me in touch with my family in the village," he smiles after getting a call from a nephew.

In rural areas, meanwhile, people are snapping up phones at an ever quicker pace as mobile firms aggressively roll out networks, sharing costs of infrastructure to reach far-flung areas quickly and cheaply, experts say.

Farmers are using mobile phones to call other farmers to find out the market price for crops like rice, fruit and coconuts.

Market players say tumbling stock markets and property prices are not stopping many poor Indians signing up for phones as they don't own shares or real estate and are not being hit.

"The people in rural India are not being affected by the global crunch," Sanjay Gupta, chief marketing officer of Bharti Airtel, India's leading cellular provider, said in an interview.

India's "mobile revolution" is still mainly seen in the cities, but the real prize for phone companies is the vast rural market, where nearly 70 percent of the 1.1-billion-strong population live, analysts say.

By the end of January, 34.5 percent of the population owned a telephone, Telecom Regulatory Authority of India said.

But those figures distort the picture, with 66 percent of people in cities owning a phone compared to around nine percent in rural areas, says Frost & Sullivan.

"The next addition of subscribers will come from rural regions," said consultant Trivedi. The government calls the rural market the "next accelerator" for mobile growth.

Total wireless connections stand at 362.30 million, up from 233.63 million a year earlier. Combined with fixed line users, the country now has over 400 million telephone connections.

"With aggressive rollout targets by operators... the trend of new subscribers will continue," said Trivedi.

The Cellular Operators' Association expects 525 million mobile subscribers by 2010, rising to 740 million by 2012.

Nokia 5800 music mobile is comming



Technical problems with the U.S. version of the newly launched Nokia 5800 music mobile phone have led flagship stores in New York and Chicago to pull the model, according to PC World. For now, U.S. customers have to settle for a European version instead.
Nokia announced the new Nokia 5800 Xpress Music's availability in the United States Friday. Positioned as a rival to Apple's iPhone, the phone is a music device with a touch-screen interface, priced at $399 before taxes and subsidies in the U.S.

But according to PC World, the U.S. launch has been interrupted by consumer complaints that the earpiece is not properly protected against moisture, which ruins the speaker. Users have also reported difficulties connecting to AT&T's 3G network, and many customers have reportedly already returned their phones.

The touchscreen 3G Nokia 5800, set to launch in North America later this month, will give the mobile world a pleasant surprise. This iPhone rival brings plenty of hardware goodies, but can it compete with Apple's crown jewel?

The 5800 will launch on February 26, and will be available in an unlocked version, which can be used on either AT&T's or T-Mobile's network, for $399. I've been using the Nokia 5800 as my primary phone for the past few days to see how well it performed--and how well it compares with my iPhone.

What struck me immediately about the Nokia 5800 is that it lacks external music controls--and it's supposed to be a music-centric handset. On its right side, you'll find SIM and memory card slots, with stereo speaker grills underneath. On the left side are volume controls, a sliding screen lock, and a camera shutter. At the top of the phone, there's a power/profile switching button, plus a microUSB slot and a standard 3.5mm audio jack. A pleasant surprise was the included stylus, housed at the bottom right corner of the handset's back.

One of Nokia's 5800 most important assets is located at the back of the phone. The 3.2-megapixel autofocus camera sports Carl Zeiss lens with dual LED flash (take that, iPhone). Nokia just upgraded 5800's firmware last night, adding geotagging for photos (using the built-in GPS antenna), among other features.
The 5800 features a 3.2-inch 16:9 aspect ratio touchscreen (360 x 640 pixels), which has three control keys underneath it: call, menu, and hang up. The front of the phone also has a secondary VGA camera for video calling. Above the touchscreen, there's a tiny touch sensitive area can be found that brings up five onscreen shortcuts for music, pictures, media sharing, movies, and Web.