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Q1. What is Information Technology (IT)?
Q2. What are the Components of Information Technology?
Monday, 18 July 2016
Question About Information Technology
Q1. What is Information Technology (IT)?
Information technology is the technology that uses computing with high-speed communication links to spread information from one place to another. The interconnection of Computers enables people to send and receive information. The communication links are also used to communicate with different people in the world.
Question About Information Processing Cycle
Q1. What is Information Processing Cycle?
Ans. A series of steps used to convert data into meaningful information is known as information processing cycle. The steps in this cycle are performed in a specific squence.
Different steps in the information processing cycle are as follows:
Input:
The first step of the information processing cycle is input. The Computer accept data in this step. Data consists of raw facts and figures. Data is entered into the Computer for processing. It is entered using different input devices such as Keyboard and Mouse.
Processing:
The second step of the information processing cycle is processing. It converts data into information. Information is an organized and processed form of data. The central processing unit processes data into information. Random Access Memory (RAM) temporarily stores programs and data required by the CPU (The Central Processing Unit)
Output:
The third step of the information processing cycle is output. The results are provided to the user in this step. It is performed using different output devices such as monitors and printers.
Storage:
The fourth step of the information processing cycle is storage. It stores data, information and programs used by the Computer system, It is performed using different storage devices like hard disk drives, CD, DVD, and USB flash memory etc.
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Question About Data and Information
Q1. What is Data?
Q2. What are Information?
Q3. What is the difference between Data and Information?
Ans (1,2 and 3).
Data:
A Collection if raw facts and figures is called data. The word raw means that the facts have not been processed to get their exact meaning. Data is given to the Computer for processing. Data is collected from different sources. It is collected for different purposes. Data may consist of Numbers, Characters, Symbols or Pictures etc.
Examples of Data:
Some example of data are as follows
- Student fill an admission form when they get admission in college. The form consists of raw facts about the students. These raw facts are student's name, father name, address etc. The purpose of collecting this data is to maintain the records of the students during their study period in the college.
- Governments collect the data of all citizens of the country during the census. This data is stored permanently and is used for different purposes at different times,
- Different organizations conduct surveys to know the opinion of the people about their products. In these surveys, people express their ideas and opinions about different issues. These ideas and opinions of the people are stored as data. The organizations use this data for the improvements of their products etc.
Information:
The processed data is called information. Information is an organized and processed form of data. It is more meaningful than data and is used for making decisions. Data is used as input for the processing and information is the output of this processing. This information can be used again in some other processing and will be considered as data in that processing.
For example, the marks of a student in different subjects is data. This data is used to calculate the total marks which is the information, The total marks can be processed again to calculate the average marks of a student. In this processing, total marks is used as data and average marks is the information.
Examples of Information:
Some examples of information is as follows:
- In Colleges and Universities, the raw facts about students are stored on admission forms. If we want to find out a list of all students who live in New York, we will apply some processing on this data. This processing will give us the desired list. This list is a form of processed data and will be called information.
- The stored data in the census is used to generate different type of information. For example, Government can use it to find the total number of graduates, or literacy rate in the country etc. The information is obtained by processing the data. Government can use the information in important decisions to improve literacy rate.
- An organization can use the opinion of the people as data and process it to generate information of its interests. For example, it can know that how many people of the country are satisfied with the quality of its product and how many are unsatisfied. The organization can use this information for the improvement of its products.
Sunday, 17 July 2016
Question About Software and Hardware
Q1. What is Software?
Q2. What is Hardware?
Q3. Define difference between Software and Hardware.
Ans (1,2 & 3)
Software and Hardware:
A set of instructions given to the computer to solve a problem is called software. Software is also called program, Different software are used to solve different problems. A computer works according to the instructions written in software.
The physical parts of the Computer are called hardware. The user can see and touch the hardware. Keyboard and Mouse are two example of hardware.
Relationship of Software and Hardware:
Software is a set of instructions that tells the Computer hardware what to do? The hardware cannot perform any task without software. The Software cannot be executed without Hardware. A Computer becomes useful when hardware and software are combined.
Difference between Software and Hardware:
Software:
- Software is a set of instructions that tell a Computer exactly what to do.
- Software cannot be executed without Hardware.
- Software cannot be touched,
- Software is debugged in case of problem.
- Software is re-installed if the problem is not solved.
Hardware:
- Hardware is the physical parts of the Computer that cause processing of data.
- Hardware cannot perform any task without software.
- Hardware can be seen and touched.
- Hardware is repaired in case of problem.
- Hardware is replaced if problem is not solved.
Question About Computer
Q1. What is a Computer?
Q2. Define the Characteristic of Computer.
Ans. (1)
Computer:
Computer is an Electronic Machine used to solve different problems according to a set of instructions given to it. A Computer can accept data, process data into useful information and store it for later use.
The word Computer is derived from Compute that means to calculate. Computer can be used as a Calculating Machine to produce results at a very high speed. However, the Calculation is not the only use of Computer. It can be used for different purposes, People use computers to solve different problems quickly and easily. It has changed the way of life.
Computers are available in different shapes and sizes, A common type of Computer System is as follows:
Computer Literacy:
The term Computer literacy refers to the knowledge and undertaking of Computer and its Uses. A person is Computer Literate if he understands Computer and its application.
Ans (2)
Characteristics of Computer:
The Important characteristic of a computer are as follows:
1. Speed:
Computer process data at a very high speed. It is much faster than human beings. A Computer can perform billions of calculation in a second. Computer speed is measured in Mega Hertz (MHZ) or Giga Hertz (GHZ). For example, the process of multiplying 750 and 927 can take one or two minutes if it is performed by human beings. However, A Computer can perform millions of such calculations within a second.
2. Reliability:
Computer is very reliable. The Electronic Components in modern Computer really break or fail.
3. Accuracy:
Accuracy means that the Computer provides results without any errors. Computer can process large amounts of data and produce results accurately. The result can be wrong only if the data given to the Computer is not correct. Suppose the average marks of a class are required, there can be a chance of a mistake in the result if it is performed by human beings. However, a Computer can produce this result very accurately and quickly.
4. Storage:
Computer can store a large amount of data permanently. People can use this data at any time. The user can store any type of data in the computer. The storage capacity of computer is increasing rapidly. A Computer can store millions of books easily.
5. Versatility:
Computer is a versatile machine, It can perform different types of tasks. That is why it is being used in every field of life. Computer is used in hospital, bank. office and at home. A user can play games, listen to music, watch movies and used the internet using a Computer.
6. Consistency:
Computer works in a consistent way, It does not lose concentration due to heavy work, It does not become tired or bored. Computer performs all jobs with equal attention.
7. Communication:
Most Computers today have the capability of communicating with other computers. We connect two or more computers by a communication device such as modem. These computers can share data, instructions and information. The connected Computers are called Network. You can communicate with other people in the world using network like Internet.
8. Recalling:
A Computer can recall the stored data and information as and when required. The data stored in the Computer can be used at a letter time. The Computer can recall the required data in a few seconds.
9. Control Sequence:
A Computer works strictly according to the given instruction. It follows the same sequence of execution that is given in a program.
10. Cost Reductions:
We can perform a difficult task in less time and less cost. For example, you may have to hire many people to handle an office, while the same work can be performed by a single person with the help of a Computer. It reduces the cost.
Question About Blog and Website
Q1. What is Blog?
Q2. What is Website?
Q3. What is the major diferrence between a blog and a website?
A blog is basically a web log that a blogger makes use for chronological listing of blog posts. A blog has the most recent content shown first followed by the previously updated content. A blog can be easily started with services like WordPress, Blogger, etc. and do not need you to start something from the scratch, providing you with the entire system including design templates.
A blog thrives on new content and more updated it is, the more attention it will get. That doesn’t mean tons of scraps will equal gold mine. Quality and regularly updated content are examples of a good blog.
How to Identify a blog? the basic Identification:
A chronological listing of blog posts.
A commenting system that invites readers to participate in the communication and leave behind comments.
Blog posts are archived by date, category, author, tags and sub-categories.
RSS (stands for Really Simple Syndication) feeds for posts and/or comments for feed-readers like Feedly, etc.
A website in return can be anything. Anything on the internet presented in HTML/CSS or Java/Javascript/Python/Php, etc. comprises of a website. A webiste may be complimented with a blog, but the home page would be more for browsing other pages and not just posts. Fully functional and eye-catchy websites are usually cost consuming tasks as you would have to build from the base up. However with platforms and services like Adobe Dreamweaver, you could build your own website.
Q2. What is Website?
Q3. What is the major diferrence between a blog and a website?
Ans (1, 2 & 3):
Blog:
A blog thrives on new content and more updated it is, the more attention it will get. That doesn’t mean tons of scraps will equal gold mine. Quality and regularly updated content are examples of a good blog.
How to Identify a blog? the basic Identification:
A chronological listing of blog posts.
A commenting system that invites readers to participate in the communication and leave behind comments.
Blog posts are archived by date, category, author, tags and sub-categories.
RSS (stands for Really Simple Syndication) feeds for posts and/or comments for feed-readers like Feedly, etc.
Website:
A website in return can be anything. Anything on the internet presented in HTML/CSS or Java/Javascript/Python/Php, etc. comprises of a website. A webiste may be complimented with a blog, but the home page would be more for browsing other pages and not just posts. Fully functional and eye-catchy websites are usually cost consuming tasks as you would have to build from the base up. However with platforms and services like Adobe Dreamweaver, you could build your own website.
A blog can be a part of a website, in the form of a separate page and linked to the homepage. A website is a bigger aspect and its limitations are little to none. A website could be anything from a single page to a 1 Billion-users social network (Say, Facebook).
How to identify a Website? the basic identification of a Website:
A homepage that displays content from several sections of internal website pages.
A design portfolio of work.
A blog might be a part of a website, but not the only thing.
A Frequently asked questions page that readers can browse to get more information.
A page of client testimonials and feedback.
Company’s terms and privacy statements pages.
A Contact form that allows visitors to get in touch.
A services/products page that displays what they have to offer for the visitors.
Question About SEO
Q1. What does mean by SEO?
Q2. How does SEO work?
Ans (1). SEO stands for SEARCH ENGINE OPTIMIZATION.
Ans (2). As SEO is a marketing discipline focused on growing visibility in organic (non-paid) search engine results. SEO encompasses both the technical and creative elements required to improve rankings, drive traffic, and increase awareness in search engines. There are many aspects to SEO, from the words on your page to the way other sites link to you on the web. Sometimes SEO is simply a matter of making sure your site is structured in a way that search engines understand.SEO isn't just about building search engine-friendly websites. It's about making your site better for people too. At Moz we believe these principles go hand-in-hand.This guide is designed to describe all areas of SEO—from finding the terms and phrases (keywords) that generate traffic to your website, to making your site friendly to search engines, to building links and marketing the unique value of your site. If you are confused about this stuff.SEO isn't just about building search engine-friendly websites. It's about making your site better for people too. At Moz we believe these principles go hand-in-hand.This guide is designed to describe all areas of SEO—from finding the terms and phrases (keywords) that generate traffic to your website, to making your site friendly to search engines, to building links and marketing the unique value of your site. If you are confused about this stuff, you are not alone, and we're here to help.
So, The majority of web traffic is driven by the major commercial search engines, Google, Bing, and Yahoo!. Although social media and other types of traffic can generate visits to your website, search engines are the primary method of navigation for most Internet users. This is true whether your site provides content, services, products, information, or just about anything else.
Search engines are unique in that they provide targeted traffic—people looking for what you offer. Search engines are the roadways that make this happen. If search engines cannot find your site, or add your content to their databases, you miss out on incredible opportunities to drive traffic to your site.
Search queries—the words that users type into the search box—carry extraordinary value. Experience has shown that search engine traffic can make (or break) an organization's success. Targeted traffic to a website can provide publicity, revenue, and exposure like no other channel of marketing. Investing in SEO can have an exceptional rate of return compared to other types of marketing and promotion.
Q3. Why Search Engines Cannot Do Figure Out Any Website Without SEO?
Q4. Can Anybody Do SEO For Himself?
Ans. (1). Search engines like google, yahoo and bing are smart, but they still need help. The major engines are always working to improve their technology to crawl the web more deeply and return better results to users. However, there is a limit to how search engines can operate. Whereas the right SEO can net you thousands of visitors and increased attention, the wrong moves can hide or bury your site deep in the search results where visibility is minimal.
In addition to making content available to search engines, SEO also helps boost rankings so that content will be placed where searchers will more readily find it. The Internet is becoming increasingly competitive, and those companies who perform SEO will have a decided advantage in visitors and customers.
Ans. (2) The world of SEO is complex, but most people can easily understand the basics. Even a small amount of knowledge can make a big difference. Free SEO education is widely available on the web, including in guides like this. Combine this with a little practice and you are well on your way to becoming a guru.
Depending on your time commitment, your willingness to learn, and the complexity of your website(s), you may decide you need an expert to handle things for you. Firms that practice SEO can vary; some have a highly specialized focus, while others take a broader and more general approach.
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