Tag Archive for Technology

Digital Printing Vs Offset Printing – Their Pros and Cons

The popular commercial printing choices available today are digital printing and offset printing. Offset printing is traditional and the natural method of printing process whereas digital printing is the emerging printing technology. Both of them are unique and bring you benefits. Confused on what printing technology to use for your printings, a common question arises for most people is which is more suitable – offset or digital printing.

You can choose the type of printing based on key factors and benefits. The key factors include budget, time and quality. These factors you need to figure out before you opt for any of the printing technologies. Along with this, you should also take a look at the pros and cons of each. To help you out, we have compiled the benefits and drawbacks of each printing technology.

Digital printing
Digital printing does direct printing with the help of digital medium. In other words, it sends the file from a computer to the digital printer that directly prints on a paper. Digital printing eliminates many steps involved in the offset printing like making films and plates for ink rollers. It uses inkjet or laser technologies for printing. Many high quality digital printers use laser for printing.

The pros:

  • The primary benefit of digital printing is it is fast and is suitable for businesses with stringent deadlines.
  • This is more efficient or economical option for the small number of prints or print runs.
  • It can quickly print off proof sheets i.e., few sheets at a time.
  • Digital printing is more flexible if you need frequent changes to your printing – customization is available in digital printing.
  • Digital prints are of very high quality as the colors shows perfectly on the prints and the quality of the color from the first print to last print will be the same on the print.
  • A major concern of the new companies or businesses in case of offset printing is whether the print that they had made would appeal to their clients or not. But with digital printing, you can eliminate this problem because there is chance of getting prototypes before you decide the final print and it doesn’t take much time for making samples as digital printing process is quick.

The cons:
Though there are lots of benefits with digital printing, and has also a few drawbacks that you need to consider when choosing.

  • It is expensive if you want to make a bulk or high volumes of sheets.
  • Some of the digital print papers can have cracks in folds or edges as the ink can’t fully absorbed by the paper.
  • Though digital prints are of good quality, they are inferior to the one offset printing because the color quality can’t match.

Offset printing
Offset printing is a traditional method used in printing. It involves a series of steps – at first, the inked image is transferred through a series of rollers from a plate to the rubber blanket and then sent to a roll of sheets/papers for printing. When it comes to mass creation, offset printing is the most common method.

The pros:

  • Offset printing is a cost effective option for long print runs or for high volumes.
  • You can have more choices or materials like stock, paper types, sizes, etc.
  • As for image quality, this is good choice for the graphic designers.

The cons:

  • Offset printing costs more for short volumes of printing.
  • It takes more time as it requires a huge set-up and the costs for the set-up are more.
  • It is more difficult if you want to customize or personalize the print during the print run.
  • Multiple changes and the accurate proofing is expensive in offset printing.

Make sure to choose the one that satisfies the above factors and your requirements.
Read more

Benefit Of PCB Electronic Ballasts Over Electric Ballast

A ballast is the big bulky box like structure on fluorescent lamps. The electric ballasts of the past have been replaced by PCB based electronic ballasts. The conglomeration of PCB technology and electronics has been helpful in achieving this.

What a ballast does
The ballasts are used to limit the electric currents in fluorescent lamps. The lamps are filled with mercury vapor. Due to negative resistance characteristics of the mercury vapor, it draws heavy currents in the lamps, which can destroy the lamp. For limiting these dangerous amounts of electric current, ballasts are used.

Electrical ballasts
The traditional ballasts used to be either inductive or resistive in nature. Inductive ballasts produced high voltages across discharge tubes that ionize the gas and limits the amount of current to save the lamp. One of the major disadvantages with the ballasts was the frequency at which the lamp operates. The electrical ballasts operating at low frequencies affected the performance of the lamps. Flicker could be observed in the lamps due to low frequency operation. Also, the windings used to be under constant stresses producing an irritating humming noise during their operation.

PCB based electronic ballasts
But now the tide has changed and with the development of solid state electronics and PCB technology, electronic ballasts are replacing the electrical ballasts and the the latter is on the verge of extinction.

The electronic ballasts are based on the principles of SMPS technology, pulse width modulation or frequency modulation techniques. The electronic components in the form of switching devices like MOSFETs, IGBT or transistor and diodes, transformers, etc. are embedded on a PCB. These circuits in addition to limiting the amount of current, increase the frequency of the power to high levels. As a result, flicker in the lamp is reduced and buzzing sound from the ballasts is also eliminated. Due to absence of preheating technique, the lamp life is increased.

Advantages of PCB electronic ballasts

  • With the advent of PCB electronic ballasts, which are relatively small sizes of the components, the electronic ballasts have become smaller and lighter than electric ballasts.
  • The lamps have become sleeker and the thickness has been reduced giving the same illumination.
  • They are comparatively inexpensive due to mass production techniques and low cost of the components.
  • Flicker and buzzing in the fluorescent lamps is reduced considerably.
  • They are more efficient than the electrical ballasts and result in saving of power and lead to long life of lamps.

Read more

HTML Vs PHP Vs ASP – Which is Best and Secure for a Website?

Are you looking for a good programming language that provides more security to your website? Then know the differences between HTML, PHP and ASP which are languages used to design a website. Choose the one that satisfies your requirements in providing security. Every language has got their own importance. Here, you have to know the differences and choose the language.
Choosing of the language for your site also varies depending on the whether you want dynamic site or a static website.

HTML for a website
website monitoring serviceIf you want your site to be simple and clean with only limited images, you choose this language to design your website. It has many features that are beneficial to your website.

  • The loading speed of the website designed with HTML will be fast. It can be easily accessed by large no. of audience.
  • HTML sites are search engine friendly as the code is clean and simple.
  • The server load will be less if the sites use HTML
  • If you want to update the site fast, this language will be useful.
  • It is compatible with all kinds of browsers.
  • As this language is easy to understand the user can make modifications in the code whenever necessary especially for novice users.
  • Here you no need to buy any software.

But it has some disadvantages apart from the benefits it brings to the user.

  • It only supports for the site which need static web pages as it can’t produce dynamic alone that is, it needs the help of other programming languages.
  • Security features offered by HTML are very limited.
  • In order to make your web site vibrant that is detailed you need to incorporate the CSS along with HTML because it is basic and can’t really provide the details.
  • It can’t run because it is not an execution script.
  • To show time and other features you need to incorporate PHP, etc.

ASP. Net for a website
Few advantages of ASP are:

  • It is a highly secure language for website designing as it supports windows authentication.
  • The web applications can be configured easily.
  • Web development with ASP is faster when compared with other languages.
  • It reduces the operational cost.
  • It is highly reliable language.
  • ASP and HTML can blend each other very well.
  • If any illegal behavior is there it immediately intimates to the user with alerts and notifications.

Disadvantages

  • In order to run ASP programs windows server platform need to be installed with IIS.
  • PHP code can’t run faster when compared to PHP.
  • ASP can run only a few platforms along with ASP-Apache installed on it.
  • It requires additional costs.
  • It mainly uses MS-SQL and not flexible.

PHP for a website
Developing the site with PHP is a good idea. Many of the sites today are being developed with this programming language. It has many advantages over the other two languages.

  • It is available or downloaded free of cost.
  • It is compatible in any kind of OS like windows, Unix, Linux etc
  • The website developed with PHP dose data processing quickly.
  • It has simple features and use simple techniques that can be easily understood by the users.
  • It is compatible, that it can be used in HTML.
  • It can integrate major web applications i.e., highly flexible and scalable.
  • It provides many security functions like protecting from spy , virus attacks etc.

Disadvantages

  • As it is an open source, all can see the source code of the sites designed with PHP. So, if the code contains any bugs, it will be a weakness of the site.
  • For large web applications, it is not suitable.
  • It is slower than other languages compared.
  • The code is in plain text.

As the owner of the website it is your responsibility to check which language suits based on the requirements to develop your website. We can’t conclude that one language is the best because everyone has got its own benefits over other. But when compared with security point of view PHP and ASP are better than HTML. ASP is the best we can say in providing security. So, it depends.
Read more

Microsoft Office Vs Apache OpenOffice

It is important for any organization to have software to increase productivity and accuracy. Office suite is one such software that helps organizations like schools, hospitals, small businesses, public organizations and individuals in their work. Office suite provides its users with word processors, calculation spreadsheets, presentation tools and database managing tools.

In the present market there are many office suites available from different developers and among them Microsoft Office is the most popular office suite. But, due to its high cost, many free office suites are developed and shared for free on the Internet. Among such free office suites, Apache OpenOffice is a well-known office suite .

Let us compare some basic differences between Microsoft Office and Apache OpenOffice in this article.

Cost

  • Microsoft Office: Microsoft Office suite is a paid tool. The cost of Microsoft Office 2013, ranges from $50 to $450 (Rs 4,000 to Rs 35,000 in India) and moreover they work only on one computer. If you increase the number of computers, the cost multiplies. Updates are sometimes free, but for some updates you need to pay.
  • OpenOffice: This is an open source suite available for free and can be used on any number of computers and can be shared with any number of people. Updates are available for free on many forums, groups and related websites.

Usability

  • Microsoft Office: Microsoft Office suite is not easy to understand and work with. A person who does not have knowledge about it may need special training or support to work on Microsoft Office. Even the “super users” need to upgrade themselves with every update as the techniques they know may change with every update.
  • OpenOffice: OpenOffice is almost similar to Microsoft Office. The whole software is freely available for you to make changes or improve its functionality to meet your requirements.

Compatibility

  • Microsoft Office: Microsoft Office is only compatible with Windows and Mac platforms (newest version, MS Office 2013 is just restricted to Windows 7 or later only). Also, it is not possible to open Microsoft Office 2003 documents (.doc format) in Microsoft Office suite after 2007 version (which supports .docx format). Upgrading the software is compulsory to make the software compatible.
  • OpenOffice: OpenOffice works on all platforms and it is capable of opening, reading and writing to any format and also the Microsoft Office documents.

Support

  • Microsoft Office: It is professionally supported and is officially provided by Microsoft to its licensed partners through call centers, books, documents and resources from the Internet.
  • OpenOffice: OpenOffice support is a community based support (not official) generally sharing information on forums and groups. Abundant resources like documentation and information are available on the Internet for free.

Security

  • Microsoft Office: It alerts the licensed user of any threats. It recommends its user to upgrade with latest updates and patches in order to protect the computer from possible threats and for securing critical information.
  • OpenOffice: Warnings are received from the forum or group members. Whoever detects them first will pass the information to their co-users (not official though).

Interfaces of both Microsoft Office and Apache OpenOffice are almost similar. Both work well with system specifications. (OpenOffice works well on older systems).

Some key features make Apache OpenOffice best suited to small, medium and non-profit organizations, and also for private use, as the software is free of cost and easy to learn.

How are Mainframes and PCs Similar

Mainframes can be termed as personal computers, but personal computers cannot be termed as mainframes. Mainframes are specifically designed for performing critical tasks that need massive amounts of data stored in disks. Large companies use mainframes to process applications such as payrolls, accounting, business proceedings, data retrieval, reservation of seats, computing calculations of scientific related researches. Mainframes are operated remotely with dumb terminals.

Whereas personal computers are designed for a single person to work at a time on it. It consists of several components such as CPU (containing 3 units – Arithmetic, logic, and integrated circuit), types of Memory elements, input/output devices – keyboard, display unit/monitor, printer, mouse etc.

For centralized environment, mainframes are used and users access mainframe through a workstation which is a dumb terminal, but real computing will done on mainframe. Large transactions are processed in batches by large organizations with the help of mainframes. Mainframe doesn’t allow any malicious attacks and thus they are more secure. Whereas PCs lead to virus attacks and crash when you try to work applications of large size. Multiple users can access data simultaneously using mainframes without any downtime at higher speed levels.

Personal computers evolved from mainframes, but these computers can be used to access information on mainframe for smaller portions. Both can perform calculations but their scalability levels differ. Personal computers fit for personal needs whereas mainframes fit for major businesses needs.

Speed, cost and reliability are the three factors that differentiate between the two types of computers.