Understanding the importance of ECA’s(Extra Curricular activities) of student, Department of Business Studies arranged the event “Talent Hunt & 2nd Inter Batch Debate Competition 2010” .
It is truly a great moment for Department of Business Studies.
“It’s time to show” with this Slogan we have started our journey to make this event successful.
Our enthusiast faculty members from school of business spare their valuable time to short list 10 student among 60 participants.
Today those 10 finalists will perform from different category and among them our celebrity judges and the panelist will select 3 Best Entertainer.
Today we are dedicating all our performance to those ‘WOMEN’ Unable to bear the insults and have committed suicide.
It is a pleasure to announce today’s event is directly telecasted by our media partner Radio Amar FM 88.00 and the whole ceremony will be livecasted by Comjagat.com on its website

Processor: Intel Core i5-540M Processor – 2.53 GHz with Turbo Boost up to 3.06 GHz, 1066 MHz, 3 MB (L3 Cache)

Chipset: Intel HM57 Express Chipset

Memory: Pre-installed 6 GB DDR3 SDRAM (upgradeable up to 8 GB), 2 SO-DIMM slots

Storage Drive: 128 GB (64 GB x 2, SATA, RAID 0 support)

Optical Disc Drive:  Drive: DVD±RW/±R DL/RAM Drive

Graphics: Graphics Accelerator: NVIDIA GeForce GT 330M – GPU with CUDA Technology (SPEED MODE) / Intel HD Graphics (STAMINA MODE) with 1 GB dedicated DDR3 SDRAM

Display: 13.1-inch screen display with the resolution of 1600 x 900 TFT colour which has VAIO Display Premium and LED backlight technology.

Camera: Front Side 640 x 480 pixels camera

Audio: Intel High Definition Audio compatible, 3D audio, Built-in stereo speakers, Built-in monaural microphone,

Battery Life: VGP-BPS20/B Lithium-ion battery that will provide up to 5.5 hours of use and VGP-BPL20 Lithium-ion battery to support up to 8 hours of use.

Dimensions & weigh: 314 x 23.8-32.7 x 210 mm, 1.39kg

September 14, 2010 will be a historic day in the arena of Electronics and Communication Technology as it enabled the Human race to transmit power without the use of wire and comes with a compact design of a highly efficient power transmit and receiving wireless system. The audience of the 2010 conference of the Institute of Electronics, Information and Communication Engineers (IEICE) had the opportunity to witness this remarkable achievement of the Fujitsu Laboratories Limited, where they presented their design of magnetic resonance based wireless charging system that can simultaneously recharge various portable electronic devices.

With the advent of several electronic devices (e.g. laptops, mobile phones, digital cameras other portable devices) we adopted a headache of carrying chargers. Portable devices inherently demanded a wireless charging system. We have been using the wireless charging system in our cordless phones over the years but it had its drawbacks too. Fujitsu proposed a more efficient system that will be 1/150^th time faster than the current wire technology. It also enables charging multiple types of portable electronic devices from a long distance without any restriction on their positions. More information can be found in the Fujitsu Laboratories Limited website.

That day isn’t far, when we will be able to run our car, laptop, mobile phone and other portable electric devices and charge them altogether simultaneously using the wireless power system.

632 submissions from 102 countries have been evaluated by the WSYA Jury 2010 in order to find three winners and two runners-up for each of the six categories of the World Summit Youth Award 2010.WSYA is both a showcase to the world for young e-content creators, journalists and writers, application designers, technologists and as well as a contribution on a global scale to addressing poverty, protecting the environment, sharing knowledge and empowering young people.

Lemon24.com has been invited by WSYA to participate in the Winners Event taking place September 18th – 22nd in New York City alongside the UN Millennium Review Summit.

More: http://youthaward.org/

from the left Mr. Andy Sim, Regional Enterprise Director DELL South Asia ASG Group, Managing Director of ESL Mr. Abdul Fattah and Mr. Mir Saadat Ali, The Country Manager of DELL Bangladesh.

The Country Manager of DELL Bangladesh, Mr. Mir Saadat Ali, said that COE will give the opportunity to DELL’s customer, if required to test and do the POC (proof of concept) for new application and storage solution before taking a final decision.
Mr. Andy Sim, regional Enterprise director DELL South Asia ASG Group and along with other DELL team members were also present at the launch.
The Managing Director of ESL Mr. Abdul Fattah said the main goal of COE is to improve the organization and implementation of research and thus achieve better use and value of the know-how potential and strength. The COE will contribute a lot for the development of the IT sector in Bangladesh. It will be a revolutionary approach in the IT sector in Bangladesh.”

Dhaka, August 24, 2010: HP, the world’s number #1 printer manufacturer brand has launched “Eid Promotion” program by offering Eid gifts for its valued customers. Country Business Development Manager of HP IPG Bangladesh, Mr. Shabbir Shafiullah and HP Bangladesh officials Mr. Sydur Rahman and Mr. Ashaduzzaman officially announced the promotion launch in a grand Iftar Mahfil in Dhaka.  More than 120 HP Business Partners and IT Journalists took part in the Mahfil.

Mr. Shabbir Shafiullah hosted this grand Iftar Mahfil and thanked HP Business Partners and Resellers for their sincere effort and dedicated drive to make HP as the leading brand in Bangladesh market and the number #1 choice for majority of the users. The promotion organizing agency Inpace Management Services along with HP Distributors Flora Distributions and Multilink Intl. Company described the promotion mechanism and gifts to the present audience. Under the promotion, with purchases of selected Inkjet cartridges and toners customer can get HP Logo Glass, HP Logo Mug, Shopping voucher & associated charges, Fatua, Mobile Phone and DVD Player. With the purchase of selected HP Inkjet Printers and All-in-Ones customers can scratch and win Shopping vouchers, Fatua of Renowned brand shops, Digital Camera, Mobile Phone and DVD Player.

The HP reseller outlets in BCS Computer Market, Multiplan Centre and other Computer Markets across the country are being decorated with EID and Ramadan themed colorful posters and banners. The HP Resellers are also distributing Leaflets containing features of selected products. The selected Original HP Inkjet & Laserjet Cartridge boxes and HP Inkjet printer and all-in-one boxes are pasted with large promotion stickers, to make customers aware of upcoming promotion and collect their gifts from authorized redemption centers. HP has placed more than 20 redemptions centers countrywide in major IT Markets for easy collection of the promotional gifts.

HP is the leading IT Manufacturer holding number #1 position in world-wide market-share for LaserJet Printers, Inkjet Printers, All-In-One Multifunction Printers, Scanners, Wide-Format Printers and Printing Supplies. HP is also holding A+ rating for last 15 years in PC Magazine Service & Reliability Survey Results. On an average HP ships more than 60 million printers every year and invests US$4 billion per year in Research and Development to ensure HP customers can get the best value for their money with the latest cutting-edge technology. HP is committed to providing customers with inventive, high quality products and services that are environmentally sound and conducts operations in environmentally responsible manner. That commitment continues to be one of the guiding principles that are deeply ingrained in HP values. It is from this history and these values that HP has become a leader in delivery of environmentally sustainable solutions for the common good.

Azam Mahmood

Client-server concepts began to gain common acceptance in 1990. They have now become popular in commercial applications of PC’s in many countries.

Client-server computing is one way of combining PC’s in a network. Specifically it involves designing the network in such a way that a database is stored and maintained on the network server, which makes data available to users on their PC’s, who are treated as Clients. A high-speed mainframe, minicomputer or a PC is dedicated to this task. More specifically, the processing of the application is shared between the server and the client PC, and may be controlled by the client.

Client-server computing is a form of distributed or co-operative computing where the work on applications can be off-loaded from a host or server in a network to the employee or department where the work would be done it, were being done clerically. For example, in a payroll system, the employee database may be created, updated and maintained on the server. Programmes on the server may control the updating of the database but programmes on the client computers will be used to check the process any transactions that will update the database, except those checks that require access to the database i.e. ensuring that an employee is on file and is active.

Much of the recent popularity of client-server computing is due to the development of a common language for accessing information in database called the Structured Query Language (SQL). This has enabled database vendors to use a variety of processing platforms to store the databases, yet still make information available to a variety of client PC’s running different software packages from Lotus 1-2-3 to application-specific reporting programmes.

Although client-server computing is often associated with decision support systems and Executive Information Systems, there are no limits on the application of the concept and the concept is also found in On-line Transaction Processing systems and other systems.

The prime advantage of client-server computing is that it will make it easier for end-users to develop their own applications. Second, it is claimed that client-server computing will allow MIS department . Employees to concentrate on corporate processing needs, rather than user needs. Corporate processing needs are directed by users, who will continue to ask MIS employees to do the work for them.

The third advantage claim is that client-server computing will reduce application backlogs in the MIS departments. This is not likely to happen, even if the systems development process does become more efficient through the adaptation of client-server computing and other innovative techniques. The nature of information is that each time someone obtains a piece of information; it leads to several new questions that were not foreseen earlier. This very quest for additional information shall create greater backlogs in many companies as client-server computing becomes more popular.

The major snag in client-server computing is the higher cost of maintaining software as information needs keep changing because of unforeseen questions that get asked by the consumers or buyers and the changing environment in which system has to operate. The cost of highly skilled analysts and programmers keep increasing which cannot dispense with to maintain and change the systems.

The more likely benefits will be improved customer service, employee satisfaction and faster reaction to new marketing opportunities. The benefits may reduce costs indirectly or they could increase enterprise revenues. Client-server computing will allow PCs networked in LANs to replace mainframes and minicomputers. Client-server computing can boost the performance of existing networks, create more flexible solutions and enables users to develop more novel systems solutions. As more work is taken from the server and placed on the client computer, all of these benefits can be achieved. In addition, as more processing is done by the users, many benefits can be realized in ensuring that all data on the system is more accurate, more complete and entered more promptly. This obviously increases the value of the information abstained from the system.

When migrating to client-server, the organization must cost-justify the downsizing operation and must realize cost and productivity benefits associated with downsizing.

Although client-server hardware and software costs are much less than mainframe hardware and software costs, the ongoing expense of operations for client-server today can be much higher. It would be wise to consider all hidden and up front costs.

It is important to note that there are differences between deploying client-server in a small environment versus a large enterprise setting.

There also goes a false alarm that client-server computing will force (MIS) department to disappear. Most people don’t care what platform the application is on, they hate to do all of the work that (MIS) department used to do.

As all the major database vendors vigorously promoting client-sever computing, the trend is developing and as more people are attracted to the concept, users will benefit form the experience and knowledge of other users, just us they have with other software.

Client-server Issues Starting

*      Start with a small to medium sized project. Staff can acquire experience and skills over the time.

*      Spend a lot of time on design and requirements gathering.

*      Do not jump into it with unrealistic expectations. End-user expectations can get very high and need to be managed.

*      Do not underestimate the time required to install the necessary software utilities if the skills are not readily available.

Usage

*      Develop prototypes of potential bottlenecks first, to test data transfer times and the impact on other systems.

*      Use virtual fields and triggers.

*      Put all validation rules into a data dictionary

*      Avoid transferring too much data through communication sub-systems.

*      Do realistic tests / benchmarks before implementation and remember : I / O and communication, sub-system performances degrade when overloaded. The amount of data transferred includes the data stored on the server, the programme stored on the server and presentation data.

Draw panels / windows

*      Present minimal information

*      Present detail upon request, not by default

*      Keep windows clean and uncluttered

*      Do not rely on cursor location

*      Screen painting time is very long in many products. In some products it may take 6 seconds to paint a complex window.

*      Drawing time is directly related to the amount of Information / obj ects in the window.

Successful EIS

*      Simply buying a generic Executive information system (EIS) tool will not allow you to build a. really effective and fast client / server-based EIS over your existing decade-old database. A database designed for transaction processing is totally different to that required for an EIS.

*      The most rapid and useful EIS systems use pre-summerised data with the end user querying the summary data.

*      Summarizing the data needs a clear understanding of the client requirements and means extra design and programming effort independent of the client tool used.

*      Summarizing a lot of records takes time and consumes a vast amount of CPU power.

*      Early in the design phase include the method and cost of distributing the client software

*      Throughput rate of client data routed in a twin ax and LAN communications sub systems is not close to that of channel attached hard disk drives. The many layers between the client and server almost always means slower response to database access.

Originally Published in Computer Jagat Magazine

Kazi Sayeda Momtaz (Sharmin)

The encryption process in particularly useful if one wishes to market programs developed in the dBASE programming language and in the case it helps reduce the possibility of unauthorized use. Encrypting command files is also useful in a LAN environment as the Source Code Program, therefore, the actual program listing is not accessible to the users. Moreover, encryption reduces the size of programs by removing the comment lines and indentation and thus results in faster program execution. This process writes the command files in different way and this is why these files cannot be read directly by dBASE III+ or any other DOS program or a standard word processor. However, the encrypted programs still run on dBASE III+.

Another feature of encrypted files is that they can be linked together to generate a single linked file and this helps reduce the number of files present on the disk.

Two separate programs come with dBASE III+ package for encrypting and linking program files viz. dBCODE and dBLINKER and the package is called RunTime+.

dBCODE is used to encrypt the program files. It removes the comment lines and extra blank spaces from the command file and re\irrites the files in such a fashion that can be understood and run by dBASE III+ or dBRUN but not by any other standard word processor. Command files may be encrypted one file at a time or all command files at a time through a response file.

Now if we want to encrypt our file then we must use encrypt program DBC. COM and we can get this type of file in the “Sample programs and Utilities” diskette in dBASEIII+ package.

dBCODE requires that the file which is to be encrypted should have the file extension name “src”. So we have to copy the program file to some other file name with file extension “.src” with the help of DOS copy command. Lastly, for encrypting the file we have to type

c:\dBASE>DBC J

then the monitor displays a massage and asking for a source file name and also promoting that the file name should have “src” as the file extension name. Now if we want to encrypt Test, src file then we have to type

C:\DBASE>Test J

After locating the source file dBCODE encrypts the Test, src file and displays the following message:

Creating C:Test.prg……..Completed.

Enter a source filename (.src) or press enter to end:

Thus, it has encrypted the Test.src file and generated a new file Test, prg which is the encrypted file. We have to remember that if we want to encrypt a file we have to copy the above-mentioned file to the” .src” extension name before encryption.

When encryption is over, removing the “.src” files from the disk we have to preserve them in a safe place. The encrypted files will run like a normal program, but will not be able to view them. If any modification is required, we can use the “.src” files and then we can encrypt them again.

For encrypting a few files there is a advantage in dBASE III+. Let us assume that we have more than five files and if we want to encrypt them at a time then we can encrypt them in one stroke though a response file. The response file is standard ASCII text file which can be created by MODIFY COMMAND or any text editor. This response file contains only the names of the command files to be encrypted. Each line of this type of file contains one file name and file name followed by J. As for example, to create a response file Test.rsp and to include STUDENT, MARKS, EXAM, SUBJECT, REPORT files in it we have to use the following commands :

.Modi Comm Test.rsp J

STUDENT J

MARKSJ

EXAM J

SUBJECT J

REPORTJ

and lastly by pressing AW we can save it.

Through the response file if we want to encrypt above-mentioned files then we need to create a directory which is called the source directory and we must copy the above-mentioned files with the file extension name “.src”. After creating source directory we have to create another directory and which is called destination directory which will receive the encrypted files. If we want to know more about dBCODE we must type C:\DBASE>DBC J and then we will get more information about dBCODE. The screen displays all the available options with dBCODE. However, only the required options should be entered. These options may be entered in any sequence and a dash (—) precedes the options letter and different options should be separated by at least a space e.g.

C:DBASE>DBC-Test.rsp-s / Source/-0/Output/ J

where rTest.rsp is the response file, Source is the source directory and output is the destination directory.

The dBCODE reads all the files to be encrypted from the source directory and writes them in the output directory after encryption.

dBLINKER is used to link all the encrypted files together to generate one consolidated application program. dBLINKER reduces the number of program files on the disk and speeds up the execution of a program. Now if we want to link encrypted files then have to use DBL.COM file which is available in the “Sample Programs and Utilities” disk.

Like dBCODE, dBLINKER too can be used to link files in the in the interactive mode or through the response file. To use the interactive mode, we have to use DOS prompt and then we have to type C:DBASE>DBL J and then monitor displays a message and asks a file name to store the final file. After this, it prompts to enter the source file names. After typing the encrypted files one by one DBLINKER generates a final linked-up output file.

For using dBLINKER to link several files in one stroke like dBCODE we can use a response file.

After all files have been correctly linked up, the final file can be run on dBASE III+ or dBRUN. To run the final linked-up file through dBRUN we may use

C:\DBASE>DBRUN Final J

where Final is the final linked-up file. Without dBRUN package we can use the final linked-up file through * dBASE dot prompt e.g.,    ‘

.Do Final J

dBASE can be used in the Local Area Network (LAN) environment through the dBASE Administrator. The Microcomputers communicate with each other through cables. The purpose of connecting computers in a LAN environment is resource sharing.

dBASE III+ (version 1.1) is supported on three LANs viz.

(1)  IBM PC Network

(2)  Novell Network

(3)  3Com 3 + Network.

In a LAN environment, a number of users can simultaneously access the same database file and try to modify the same record simultaneously. This may result in unpredictable data in records. To overcome this problem, the dBASE Administrator updates the records sequentially, thus maintaining the index files correctly. The dBASE Administrator locks the file/record before entering any data in it so that other users cannot access the file/record. Moreover., the database files may be encrypted through PROTECT.

PROTECT is a special facility available in dBASE Administrator. It is used for the security of database files. The PROTECT facility, though meant for the LAN environment, can also be used for a single user or for a single computer multi-user configuration. It includes three level of security.

LOG-IN Security; Unless the correct user Group Name, User Name and Password are entered, an access to dBASE III+ is impossible. File and Field Access Security: File and field access security is basically used for a LAN environment, Where different users are assigned different access levels for database files and their fields.

Data Encryption: Data encryption encrypts data i.e., dBASE Administrator rewrites the contents of a database file in such a fashion that they cannot be read. An encrypted file can be read only after decryption. dBASE Administrator automatically encrypts and decrypts the database files to which the user has legitimate access, as required, if accessed after successful log-in.

Using the protection facility we can market our program. So protection facility of dBASE III+ gives us great advantage.

Reference :

dBASE III Plus made simple with dBASE IV and FoxBASE+ By R.K. Taxali.