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Mobile: +91-9368049120, 9058663378
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Jobs in Pharma

SRD Placement is growing placement services in North India for all candidates who wants jobs in pharma companies. Dear Candidates please contact us for jobs in Uttarakhan, Himachal, Delhi & NCR.

Mail your CV's at srdplacement@gmail.com

Raju Kumar
+91-9045775972

Deepak Kumar
+91-9058663378

15 January, 2011

We are launching the placement services for Pharma Industry to provide candidates for all fields. Our motto is to help our candidates to reach the heights of their career path and on the other hand we wish to provide efficient and prompt services to our clients.

Sockets and Socket Programming

Sockets and Socket Programming

An essential network programming concept
A socket is one of the most fundamental technologies of computer networking. Sockets allow applications to communicate using standard mechanisms built into network hardware and operating systems. Although network software may seem to be a relatively new "Web" phenomenon, socket technology actually has been employed for roughly two decades.
Software applications that rely on the Internet and other computer networks continue to grow in popularity. Many of today's most popular software packages -- including Web browsers, instant messaging applications and peer to peer file sharing systems -- rely on sockets.

Point-to-Point Communication

In a nutshell, a socket represents a single connection between exactly two pieces of software. More than two pieces of software can communicate in client/server or distributed systems (for example, many Web browsers can simultaneously communicate with a single Web server) but multiple sockets are required to do this. Socket-based software usually runs on two separate computers on the network, but sockets can also be used to communicate locally (interprocess) on a single computer.
Sockets are bidirectional, meaning that either side of the connection is capable of both sending and receiving data. Sometimes the one application that initiates communication is termed the client and the other application the server, but this terminology leads to confusion in non-client/server systems and should generally be avoided.

Libraries

Programmers access sockets using code libraries packaged with the operating system. Several libraries that implement standard application programming interfaces (APIs) exist. The first mainstream package - the Berkeley Socket Library is still widely in use on UNIX® systems. Another very common API is the Windows Sockets (Winsock) library for Microsoft operating systems. Relative to other network programming technologies, socket APIs are quite mature: Winsock has been in use since 1993 and Berkeley sockets since 1982.

Interface Types

Socket interfaces can be divided into three categories. Perhaps the most commonly-used type, the stream socket, implements "connection-oriented" semantics. Essentially, a "stream" requires that the two communicating parties first establish a socket connection, after which any data passed through that connection will be guaranteed to arrive in the same order in which it was sent.
Datagram sockets offer "connection-less" semantics. With datagrams, connections are implicit rather than explicit as with streams. Either party simply sends datagrams as needed and waits for the other to respond; messages can be lost in transmission or received out of order, but it is the application's responsibility and not the socket's to deal with these problems. Implementing datagram sockets can give some applications a performance boost and additional flexibility compared to using stream sockets, justifying their use in some situations.
The third type of socket -- the so-called raw socket -- bypasses the library's built-in support for standard protocols like TCP and UDP. Raw sockets are used for custom low-level protocol development.

Addresses and Ports

Today, sockets are typically used in conjunction with the Internet protocols -- Internet Protocol, Transmission Control Protocol, and User Datagram Protocol (UDP). Libraries implementing sockets for Internet Protocol use TCP for streams, UDP for datagrams, and IP itself for raw sockets.
To communicate over the Internet, IP socket libraries use the IP address to identify specific computers. Many parts of the Internet work with naming services, so that the users and socket programmers can work with computers by name (e.g., "thiscomputer.compnetworking.about.com") instead of by address (e.g., 208.185.127.40). Stream and datagram sockets also use IP port numbers to distinguish multiple applications from each other. For example, Web browsers on the Internet know to use port 80 as the default for socket communications with Web servers.

Socket Programming and You

Traditionally, sockets have been of interest mainly to computer programmers. But as new networking applications emerge, end users are becoming increasingly network-savvy. Many Web surfers, for example, now know that some addresses in the browser look like

http://336.01.253.82:8080/

where 8080 is the port number being used by that socket.
The socket APIs are relatively small and simple. Many of the functions are similar to those used in file input/output routines such as read(), write(), and close(). The actual function calls to use depend on the programming language and socket library chosen.

windows7 Defragment in easy ways

windows7 Defragment in easy ways

Defragmenting your hard disk is one of the best things you can do to speed up your Windows computer. But the question is How?
just  your think your hard drive like a file cabinet. If you're like most people, you've got your papers stored in alphabetized folders so you can find everything very  easy.
If someone took the labels off the folders, switched the locations of all the folders, and moved documents into and out of folders at random. It would take you a lot longer to find any file ,  since you wouldn't know where your documents were... That's sort of what happens when your hard drive gets fragmented: it takes the computer much more time to find files that are scattered here, there and everywhere. Defragmenting your drive restores order to that chaos, and speeds up your computer -- sometimes a lot.
Defragmentation is available in Windows XP and Windows Vista, although there are some differences between the two. The most important is that Vista allowed scheduling of defragmentation: you could set it to defrag your hard drive every Tuesday at 3 a.m. if you wanted. In XP, you had to defrag manually.
It's just as important to defrag a Windows 7 computer on a regular basis, but there are some new options, and a new look. To get to the defragger, click on the Start button, and type in "disk defragmenter" in the search window at the bottom. "Disk Defragmenter" should appear at the top of the search results, as shown above.
If you've used the defragger in Vista and XP, the first thing you'll notice is the that Graphical User Interface, or GUI, has been completely redesigned. It's from this main screen that you manage all your defragmentation tasks. In the middle of the GUI is a screen that lists all the hard drives attached to your system that can be defragmented.
This is also where you can schedule automatic defragmentation, or start the process manually.
To automate defragmentation, left-click on the "Configure schedule" button. That will bring up the window shown above. From here, you can schedule how often to defragment, what time of day to defragment (night is best, as defragmenting a drive can suck up a lot of resources which can slow down your computer), and what disks to defragment on that schedule.
I recommend setting up these options, and having defragmentation done automatically; it's easy to forget to do it manually, and have to spend hours defragging when you need to get something else done.
The middle window, shown above, lists all your hard drives eligible for defragmentation. Left-click any drive in the list to highlight it, then click "Analyze disk" at the bottom to determine if it needs to be defragmented (fragmentation is shown in the "Last Run" column). Microsoft recommends defragmenting any disk that has more than 10% fragmentation.
One of the advantages of Windows 7's defragmenter is that it can defragment multiple hard drives simultaneously. In previous versions, one drive had to be defragged before another one could be. Now, drives can be defragged in parallel, i.e. at the same time. That can be a big time-saver if you have, for example, an internal hard drive, external drive and a USB drive and they all need to be defragged.
If you enjoy being bored, or are just a geek by nature, you can monitor the status of your defrag session. After clicking "Defragment disk" (assuming you're doing a manual defrag, which you may want to do the first time you defrag under Windows 7), you'll be presented with detailed information on how the defrag is going, as shown in the image above.
Another difference between the defrag in Windows 7 and Vista is the amount of information provided during a defrag session. Windows 7 is much more detailed in what it tells you about its progress. This could be helpful to view if you're having insomnia.
In Windows 7, you can stop the defrag at any time, without damaging your disks in any way, by clicking "Stop operation" during a defrag.

Nokia X2 Price in India – Affordable Price of 5 Megapixel mobile

Nokia X2 Price in India – Affordable Price of 5 Megapixel mobile

Nokia X2

The new Nokia X2 is the cheapest Price mobile phone from Nokia with 5 Megapixel camera.Nokia X2 is also the cheapest price mobile in the new launched Nokia X series mobile phones.Nokia X2 is a good music mobile phone featuring dual speakers, dedicated music keys, FM stereo and 3.5mm headphone jack.Nokia X2 also features quick launch of Facebook from the homescreen and comes with Nokia Messaging for email and IM.
Nokia X2 is a S40 mobile platform aimed for music lovers. Yes, this phone is included in the nokia music phone. Nokia X2 comes with stereo speakers with good sound quality. In addition, Nokia X2 is also equipped with FM radio with RDS and an internal antenna so you do not need to attach a headset to listen to FM radio. Nokia X2 also features a 2.2 inch QVGA screen that will make users feel comfortable when using it. On the multimedia side, Nokia X2 is equipped with a 5 megapixel camera with fixed focus. For connectivity, Nokia X2 also provides a fairly complete features, Bluetooth, 3.5mm audio jack and hot-swap microSD card slot.
Nokia X2 has 13 mm thick and 81 grams weight. Nokia X2 will be available later in Europe in June 2010 and later will also be distributed in other countries. Nokia X2 will be available in two colors, the Blue on Silver and Red on Black.
This X2 is combination of 2.2 inch screen of 320 x 240 QVGA resolutions, support FM radio, two speakers and dedicated music keys.  Social network feature is supported and X2 phone allows the users to access to Facebook’s services.  5 megapixel camera with video recording and also Nokia messaging apps features are available in Nokia X2.
Moreover, Nokia X2 mobile phone features are not very extraordinary that impress some one but one should not  forget the low price of the phone. Nokia is supposed to launch X2 Nokia phone by the end of June this year 2010. Estimated retail price of the cell phone is 85 euro excluding taxes and
Nokia X2 features :

• Candybar form factor
• 2.2-inch QVGA screen
• 13mm thin
• Weight 81gm
• Dual speakers
  
• Dedicated music keys
• FM stereo
• microSD card
• Bluetooth 2.1
• 3.5mm headphone jack
• USB 2.0
• Ovi Player
• Windows Media Player 11.
• Direct access to Facebook from the homescreen
• access to apps from Ovi Store
• 5 megapixel camera

Nokia X2 detailed specifications :

• Network : Quad Band GSM
• Dimensions:111 x 47 x 13.3 mm, 61 cc
• Weight:81 g
• Display:2.2 inch TFT,256K colors,240×320 pixels resolution
• Series 40 User Interface
• Dedicated music keys
• Memory Internal 48 MB
• MicroSD memory card slot, hot swappable, up to 16 GB
• GPRS/EDGE
• Stereo Bluetooth version 2.1 with Enhanced Data Rate
• High-Speed USB 2.0 (micro USB connector)
• USB charging
• 3.5 mm AV connector
• Camera:5 Megapixel, 2592×1944 pixels, LED flash
• WAP 2.0/xHTML, HTML (Opera mini browser)
• Stereo FM radio with RDS; built-in antenna
• Games:Bounce Tales, City Bloxx, Snake III, Block’d, Diamond Rush, Rally 3D, Brain Champion, Sudoku
• Colors:Red on Black, Blue on SIlver
• Flight mode
• Nokia Messaging Service 2.0
  
• Java MIDP 2.1
• Video Player : MPEG-4, 3GPP: H.263 and H.264 codecs
• Comes with Music*
• Media Player with metadata ID3 tags and album art support
• Nokia Music Store support
• Music codecs: mp3, AAC, eAAC, eAAC+ and WMA
• Stereo Bluetooth 2.1 support
• Dual stereo speakers
• BL-4C 860 mAh Li-Ion battery
• Talk time: up to 810 mins
• Standby time: up to 540 hours
• Music playback time: up to 26.8 hours (idle, middle volume)

Nokia X2 Price

Nokia X2 Price in India : The new Nokia X2 is launched in India at price of Rs.5,000.It is the cheapest price 5 megapixel camera mobile phone available from Nokia.

Placement

Dear freinds,


Send your updated CV's for latest jobs in Pharma Industry at srdplacement@rediffmail.com or contact Deepak Kumar : 9058663378, 9045775972.