Here's a video! Enjoy

The Disadvantages of Information Technology

 

Implementation Expenses

Every business must consider startup costs when implementing any type of information technology system. In addition to the cost of hardware and software, some technology vendors require businesses to purchase user licenses for each employee that will be operating the system. Businesses must examine the cost of training employees in unfamiliar technology. Although basic information technology systems may be user friendly, advanced programs still require formal instruction by an expert consultant.
In addition to the startup expenses, information technology systems are expensive to maintain. Systems malfunction, and when they do, businesses must engage skilled technicians to troubleshoot and make the necessary repairs. These expenses present a major disadvantage of information technology in business, particularly to businesses that are entering the technology era for the first time.

Job Elimination

Implementing information technology into business operations can save a great deal of time during the completion of daily tasks. Paperwork is processed immediately, and financial transactions are automatically calculated. Although businesses may view this expediency as a boon, there are untoward effects to such levels of automation.
As technology improves, tasks that were formerly performed by human employees are now carried out by computer systems. For example, automated telephone answering systems have replaced live receptionists in many organizations. This leads to the elimination of jobs and, in some cases, alienation of clients. Unemployed specialists and once-loyal employees may have difficulty securing future employment.

Security Breaches

The ability to store information in an electronic database facilitates quicker, more efficient communication. In the past, an individual would sift through stacks of paper records to retrieve data. With properly implemented technology, information can be recovered at the touch of a button.
Although information technology systems allow business to be conducted at a faster pace, they are not without their flaws. Information technology systems are vulnerable to security breaches, particularly when they are accessible via the Internet. If appropriate measures are not in place, unauthorized individuals may access confidential data. Information may be altered, permanently destroyed or used for unsavory purposes.

Information Technology

 

 Information Technology
 

• Information Technology (IT) is defined as the use of computer hardware and software to store, retrieve, and manipulate  information.

Advantages of Information Technology

1. Easier Communication- with the help of information technology, communication has also become cheaper, quicker, and more efficient. We can now communicate with anyone around the world through email, or using the social network services (Face book, Twitter, Instagram) 
2.  Creation of new jobs -creation of new and interesting jobs such as Computer programmers, Systems analyzers, Hardware and Software developers and Web designers are examples of new job opportunities created with the help of IT. 
3.  •Globalization of knowledge-today you can use the internet to get the latest news from any country on the globe. Services like ‘’Twitter’’ and Wikipedia are well equipped with data on about anything. 
4.  Improves data storage and file management -information and data are very important tools, so it is very essential to store them safely and also access them at any time of need. With services like “Dropbox”, we can store and backup data, and can access data any time any where.
   
   
   
   
   

Computer (the magic box?)

 

What is computer?

Computer is an electronic device operating under the control of instructions stored in its own memory,  that accepts data,  process the data, produce results, and store the results for future use.

There are a few types of computers which are supercomputers, mainframes, personal computers, mobile computers and devices and embedded computers.

but what are those? let's start with supercomputers
 

What is Supercomputer ? 

 A supercomputer is the fastest, most powerful,  most expensive computer and used for very complex, sophisticated job such as nuclear  research,calculating weather patterns, petroleum exploration, online banking, automotive design.

 

 SDSC's Gordon Supercomputer

Next, what about mainframe?

A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously (multi-user) and storing tremendous amounts of data, instructions and information.It can store tremendous amounts of data, instructions, and information; enterprises are able to bill millions of customers, prepare payroll for thousands of employees, and manage thousands of item in inventory.

So now you know what are supercomputers and mainframes, next category is personal computers, but i am sure everyone knows what is personal computer (you might using it right now)

  *listening to music while reading this post*

Personal computer is a computer that can perform all its input, processing, output and storage activities by itself. Two types of personal computers are desktop computers, and notebook computers. Mobile computer is a personal computer (that can perform all of its input, processing, output, and storage activities by itself) that you can carry from place to place
 
Next, is the mobile device which is a computing device small enough to hold in your hand.

 

Science Computer: Let's Code

Basic Coding. What is coding? Coding is what makes it possible to create software, websites and apps. Even this blog is made up of codes.Coding is like a computer language. There's a lot of websites teaching how to code such as the khan academy, learn java and code.org

Computer Science, The Future Literacy

 

Computer science, or coding, is the literacy of the future and it is very lucrative in the present. Current graduates of university programs are generally being hired into well-paying, interesting jobs.

 
So what exactly is computer science?

It is the study of the results of interaction between systems, both abstract  and physical systems, the underlying phenomenon behind the interactions themselves, and their applications and relationship to other systems.

This is a very broad definition, but I think it captures most (but probably not all) aspects of computer science. Here are a few points from the definition above

1. The study of interaction between systems: This includes computer programs and algorithms, which are abstract systems. Mathematics which is an abstract system. Digital systems, communication systems, social systems, financial systems, ecological systems, and the list goes on. Wherever there is some interaction between systems, there is computation and computer science involves the study of these interactions. Note that a digital computer in a strict sense involves interaction between electrical and mathematical systems.
2. The underlying phenomenon: Computer science seeks to fathom the deepest mysteries of life. Consider one such mystery which is one of the most important problems of mathematics today - the P versus NP problem. This problem essentially asks the question: Is it harder to find a solution to a problem than to check that a proposed solution is correct? The implications of this question are far reaching and deeper than any mathematical theorem ever proven (and probably ever to be proven) because it essentially asks a question about the foundations of all computation. Its implications span almost all branches of knowledge from philosophy to art to chemistry to biology to mathematics to engineering to finance and yes to computer science. Just name any decline, this problem is relevant to the discipline in some way. This is the power of computer science. Its ability to connect various fields with deep and profound questions which are far reaching.
3. Their applications and relationships to other systems: Now this part of the definition includes the more popular understanding of computer science as a field which has had tremendous practical influences on our world. The impact of this new science cannot be understated since everyone who has ever used google or the internet in general can tell of how beneficial it has been to them. But I'll also like to stress that computer science also seeks to understand the relationships between systems since this is the driving force behind all innovation. Innovation is all about exploiting novel relationships between systems.     credit: http://www.quora.com/What-is-computer-science-3

Welcome Bonjour Ahlan Wahsalan Konichiwa Selamat Datang to the educational blog