What is Hacker

What is Hacker?

A person who obtains information from other persons' computers and computer networks for his personal benefit to harm him illegally is called a hacker.

Hacking means finding the weakness in the computer system and then taking advantage of the same weakness to blackmail the owner of that computer. Hacking is done by a person through a computer which we call Hacker and he has a lot of knowledge of computer and computer knowledge, so he is expert in stealing data from other computers. Hearing the name of Hacking, it is known that this is a wrong thing because it is Illegal and a person can be punished by doing so. But it is not wrong to Hacking every time because not all Hackers are same, some are good Hackers and some are Bad Hackers. Who are the good and bad hackers and what do they do? Let's find out about it further.

Types of Hacking: -

Website Hacking: - This type of Hacking means to gain unauthorized control over a web server and its associated software like databases and other interfaces.

Network Hacking: - This type of Hacking means to get all the information over a network and for which there are many tools like Telnet, NS lookup, Ping, Tracert, Netstat, etc. The main purpose of doing this is only to damage the network system and its operation.

Email Hacking: - This type of Hacking means that in this hacker gets unauthorized access to his email account without the permission of the owner. Later he is going to use it for his illigal works

Ethical Hacking: - This type of Hacking means identifying the weaknesses of a system or network and helping the owner to fix it. This is a safe hacking process in which all work is done under the supervision of the owner.

Password Hacking: - This type of Hacking means that in which secret passwords are retrieved from data which are stored or transmit in the computer system by a computer system.

Computer Hacking: -This type of Hacking means that in which the hacker knows the computer ID and password of a computer system, air using hacking methods so that they gain unauthorized access to a computer system. This puts owners at risk of getting their data stolen.

What is Web Design

What is Web Design?

Web design is a process in which we plan to make a website after taking into consideration various facts and after that, according to that plan, the website gives shape-type and color form.

While designing the website, not only its color appearance is taken care of, but the information and contents available in the website are visible to the user and how they will work is also taken care of.

The structure or structure of the website is called its layout, while designing the layout, the structure was designed in such a way by keeping in mind the height-width, position etc. of different sections of the website such as header, sidebar, content, footer etc. It is known that we can present the information of our site to the user correctly.

What is Spam

What is Spam?

Repeatedly sending messages or advertisements to people on the Internet that they have not requested is called spam. That is, sending unwanted messages or advertisements to people is called spam.

If you use the Internet, then you also have to deal with spam messages, promotional emails. But one needs to be more careful with viruses and credit card fraud.

The cyber world has become a place where there is a lot of fear of accident if precautions are taken.

Some tips to avoid Spam: -

Use Secure Protocol: - Secure Protocol means that the link which is open is HTTPS or not. S is the most important here. These are the websites through which you make a credit card purchase. If S is not in the link, think ten times before purchasing.

Do not click links: - Send a link on social media or email when familiar or unfamiliar which contains a common or shocking message. Links containing such messages are usually viruses. Once clicked, they corrupt your profile again. Fraud has become common through business offers coming from unknown people or companies over email, avoid them.

Password: - Passwords are the most important part of your security. Never keep passwords in the names of your family members or on the dates of your children's birthdays. These are easy to hack. Use letters, numbers and symbols in passwords. Keep changing it at some time. Do not click on Remember Me option to remember passwords on any website.

Keep special attention of the mobile user: - If you shop through mobile or use social media, then take special care. After use, check that the mobile is locked. In a hurry, without being locked in the pocket, you can press any wrong button and you may be in loss.

Keep anti virus updates: - You must have heard that security is very good in new computers. Apple's computers are well known. However, computers also make mistakes and we are also at fault with you. So keep security software or anti virus software updated. This will help identify new viruses.

What is modem

What is modem?

A modem is a device or program that enables a computer to transmit data for example, a telephone or a cable line. It is a type of hardware device that converts between analog and digital data for real-time two-way network communication. It connects a computer or router to a broadband network.

What is the modem speed?

The speed of a modem is measured in bps and kbps.

Types of computer modems

Onboard Modem:

Onboard Modem is a modem built on the motherboard, this modem cannot be removed, but can be disabled via a jumper or CMOS setup.

Internal Modem:

The modem that connects to an old computer on a new desktop computer or the PCI slot inside the ISA slot The internal modem shown at the beginning of this document is an example of a PCI modem.

External Modem:

Modem within a box that connects to a computer externally, usually a serial port or USB port. The illustration is an example of an external USRobotics modem.

Removable Modem:

The modem is used with older laptop PCMCIA slots and can be added or removed as needed.

Why is a modem an input and output device?

A modem is considered an input and output device because it sends data (upload / output) and receives data (download / input).

What is Social Neteorking

What is Social Neteorking?

Social networking is the use of Internet-based social media programs to build relationships with friends, family, classmates, customers and clients.

Marketers use social networking to increase brand recognition and loyalty.

Why do people use social networks?

Social networks help people stay connected with their friends and family and are an easy way to find out what is happening in your social circle every day. Social networks can also be used to find fun and interesting things on the Internet because often your friends and family will share many interests, just like you.

What is the most popular social network today?

Facebook is still the largest and most popular social network with over one billion users.

Social networking sites today are the best means of connecting with each other around the world, today not only young people but also old and children are crazy about social networking sites. But people using social networking sites should not forget this. That one small mistake of yours can hurt you a lot. Today, many cases like threats, blackmailing and kidnapping have been reported on social networking sites. But this does not mean that they stop or block these social networking sites. If you use these social sites safely, then these sites are absolutely safe. And a lot of work too.

Benefits of social networking:

Through social networking, you just accept a friend request and a new friendship door starts.
By using social, you avoid being a victim of loneliness.
Many times social networking sites can also benefit you business.
You can always be busy with social networking sites.
Through a social networking site you feel that someone is listening to you.
By using this you do not miss friends.
Examples of social networks:
Bebo
Classmates
Facebook
Friendster
Google+
Instagram
Linkedin
Myspace
Orkut
Twitter
YouTube

Disadvantages of social networking: -

Social networking can make you mentally and emotionally disturbed.
Social networking is a type of addiction. You go on becoming its beginning. Which can prove to be very fatal for you.
Spending time on social networking sites becomes part of your life for you. You start giving it so much importance that you have forgotten important things of your life which is not right for your life.
Many times your data and photos are stolen from social networking sites which can be used for wrongdoings.

What is a website

What is a website?

A website or site is a collection of many web pages. A website has many web pages and each page has different types of information. A web page is actually a type of document that can contain text, images, videos, etc. All these pages are present on the web server. The main page of the website is called the home page, where many links are given, by clicking on which we can open these web pages.

Every website has a unique web address called a URL and that website is accessed through the same URL. Like the address of our website is webinhindi.com and through this address you are able to see our website.

To open any website, a type of software or application is needed which is called a browser. Examples of browsers are Chrome, Firefox, Opera, UC browser etc.

There are mainly two types of websites:

Static website: - It is created by coding with simple HTML. It is very easy to create it. It takes less time to make it. If we talk about the cost then it is very cheap. It does not connect to any type of database.
Its contents are static, ie they are not automatically updated. Coding is required to update the site. As long as you do not make changes to its code, then its content will not change.

Example of a tatic website: Most college or school websites are static. But some pages can also be dynamic such as admission form, contact form etc.


Dynamic website: - It takes more time to build it. The cost seems high. More and more functions can be added to it. It uses technologies like PHP, ASP.Net, JavaScript, Python etc. The website is connected to the database.
No coding has to be done for every content. The content remains in the database and is removed and shown to the user. A separate interface / page is created for the admin from where the site can be easily updated without writing code.

Example of dynamic website: Online shopping site, search engine, social media, online video streaming website are dynamic.

What is OTP

What is OTP?

The full name of OTP is One Time Password and is also known as One Time Pin.

OTP is a type of security code (password) by which a user is authenticated as valid. This password can only be used once.

OTP is faster and safer than traditional password based authentication. And 2-Step-Authentication is done by OTP for different types of tasks. This method is a great way for both the user and the organization to test each other.

This password is automatically generated by the system. Which is a special string of 4-8 characters of number, word, special sign etc. This special series can be valid for 10 seconds to half an hour. After this it becomes illegal. And this cannot authenticate the user.

To authenticate the user, OTP is sent to the user both online and offline. SMS, Email, Messenger are used in digital form. And for offline, the paper is sent to the user's address and sent by post.

Use of OTP: -

OTP is used for many functions including net banking. And during the transaction of money, OTP is sent to the mobile for confirmation.

OTP is sent to the mobile number while completing the payment process while shopping online.

OTP message is sent to the registered mobile number at the time of many tasks of daily life such as buying a new SIM card.

To identify the right user while login, OTP Bank, Google, Amazon, Filipkart etc. e-commerce website and other digital wallet services Paytm, Freecharge are also done.

OTP is also used for reactivation.

For security, OTP is sent to use multiple accounts in one device.

What is Qr Code

What is Qr Code?

The full name of the QR Code (QR Code Full Form in Hindi) is Quick Response Code.

QR Code is a machine-readable optical barcode. In which information related to a particular item remains connected. This information can be in the form of "Hypertext". Which is read by the barcode reader.

It is faster readable and has more memory capacity than standard UPC barcodes. This is why it is more popular than other barcodes and is used worldwide.

The data of a Locator (URLs), Identifier (Person) and Tracker (a type of code) are hidden in this barcode reader. Who open a website or mobile application

Standard code elements are used to encode information in the QR Code. These standard elements include Numbers (1,2,3…), Alphanumeric (a, b, c, 4,6, #, $…), Byte / Binary and Kanji (Chinese writing characters used in Japan) Are involved

A simple QR Code is structured like a square box. Inside of which there are black square box above the white background. Which is read by an image capturing device (camera, smartphone).

Barcode readers use Reed-Solomon Code to read QR Code. This means that it will scan the image until the correct data is reached. During this time, he keeps correcting the mistakes included in the email.

Most QR codes are black and white. But these colors are also generated. And they can also be customized according to your needs.

Depending on the structure and use and purpose of the QR Code, it can be divided into two categories: -

Static QR Code
Dynamic QR Code

What is PhonePe

What is PhonePe?

PhonePe is a mobile payment app, which can be used for money transfer, bill payment, recharge. It also provides prepaid digital wallet service to its customers. With which you can pay immediately.

PhonePe is slightly different from Paytm Wallet. It uses the customer's bank account to make the payment. That is, the customer does not have to add money to the phonepay wallet. Because it is linked to digital wallet bank account.

But you can take advantage of all these services only. When PhonePe App will be installed in your mobile phone and you have also created a PhonePe account.

phonepe mobile apps is also a very good and good online recharge app. You can do this with any type of DTH or any other recharge very easily. This is a very simple app as compared to other apps and you can use it very easily inside your mobile and Flipkart has launched the app on the phone and it is a very popular e-wallet app and if Once you install this app inside your mobile. So to recharge, you do not need to go out to any other shop or anywhere because you can do all your recharges on the phone.

Key things related to PhonePe: -

High transaction limit (1 lakh limit in 1 day and 30 lakh limit in whole month)
No top-up needed (no need to add money to your wallet)
Lifetime ZERO FEE (for all transactions, including bank withdrawals *)
Only the mobile number of the recipient of the money required (for bank account transfer, no IFSC code is required nor bank account number)
As secure as ATM (only you know your MPIN, just like your ATM pin) Contact

What is PhonePe?

PhonePe is a mobile payment app, which can be used for money transfer, bill payment, recharge. It also provides prepaid digital wallet service to its customers. With which you can pay immediately.

PhonePe is slightly different from Paytm Wallet. It uses the customer's bank account to make the payment. That is, the customer does not have to add money to the phonepay wallet. Because it is linked to digital wallet bank account.

But you can take advantage of all these services only. When PhonePe App will be installed in your mobile phone and you have also created a PhonePe account.

phonepe mobile apps is also a very good and good online recharge app. You can do this with any type of DTH or any other recharge very easily. This is a very simple app as compared to other apps and you can use it very easily inside your mobile and Flipkart has launched the app on the phone and it is a very popular e-wallet app and if Once you install this app inside your mobile. So to recharge, you do not need to go out to any other shop or anywhere because you can do all your recharges on the phone.

Key things related to PhonePe: -

High transaction limit (1 lakh limit in 1 day and 30 lakh limit in whole month)
No top-up needed (no need to add money to your wallet)
Lifetime ZERO FEE (for all transactions, including bank withdrawals *)
Only the mobile number of the recipient of the money required (for bank account transfer, no IFSC code is required nor bank account number)
As secure as ATM (only you know your MPIN, just like your ATM pin)

What is a Uniform Resource Locator

What is a Uniform Resource Locator?

The full form of the URL is Uniform Resources Locator. The URL was defined by Tim Berness-Lee in 1994 and URLs are case-sensitive, meaning we have to take care of lower case and upper case. This is the standard way to provide the address of any resource on the Internet.

URL This is an address of a specific file, directory, or website page. Like - http://gk-hindi.in It is also called as URL. Usually the address of the website represents the home page of the website. The address protocol of any website starts with a domain name and ends with a domain code. Because we use URL word mostly while using intrnet, it is only right to have URL on the world wide web, it would not be right to say that URLs can also point to a local network resource like database, lcally hosted website etc.

This is the URL used by a web browser to access a website or web page in the Internet.

Normally the URL is made up of three parts which are as follows -

The first is a Protocol Identifier which indicates which protocol is being used.
The second part is a domain name which tells which server to bring data from.
The third part gives the path and name of the document.

What is the World Wide Web (www)

What is the World Wide Web (www)?

Information is kept as a website in the World Wide Web. These websites store hypertext files on the web server. There is a name system of the World Wide Web, by which each website is given a special name. By the same name he is recognized on the web. The name of a website is also called its Uniform Resource Locator.

Both the World Wide Web and the Internet are two things, but both are dependent on each other. The World Wide Web is a huge collection of pages containing information that are connected to each other. Which is called a web page. The web page is written in HTML language which is a language used in computers. What makes a web page interesting is a hyperlink, often called a link.

Each link points to another page and when we click on it, our browser makes the page linked to the link available. Therefore, the World Wide Web is a large database of information and every information is connected to another information.

The World Wide Web was invented in 1989 by Tim Berners Lee, a British computer scientist.

A server is a type of computer in which all the contents of the website such as web pages, images, videos etc. are stored. The server is connected to the world wide web so that these contents can be accessed from any corner of the world via the Internet.

What is UPS

What is UPS?

The full name of UPS is Uninterruptible Power Supply. It is a battery-powered device through which a continuous power supply is maintained in the computer. It gives power to the computer when power is suddenly cut off from the main supply.

There is a battery inside the UPS, which can give power for 20-40 minutes. This gives us the advantage that we can shut down the computer properly when the power supply from the main supply stops.

What is application software

What is application software?

Application software is software designed for specific utilities. Application programs are created for general purposes such as yield accounting, general bill book and ledger etc. These packages are made for banks, hospitals, insurance companies, publications, etc. Application software either needs to be installed or can be run online.

Application software is called programs that are written to perform core tasks based on our computer. There are different software for different uses as per the requirement, the software is prepared by the software programmers in large companies keeping in mind the need of the user, some of it is available for free and some have to be charged. For example, if you want to do work related to photos, then if you want to see photoshop or any video for it, then use media player for it.

Application software can also be divided into two parts:

Specialized Application Software:
These are programs that are specifically tailored to the needs of the consumer. The biggest advantage of these software is that they fulfill all the requirements of the consumer. The main disadvantage of this type of software is that it is expensive compared to general purpose software.

General Purpose Application Software:
These are programs that are designed to perform the common essential functions of people. Each program is written in such a way that it is applicable to a large number of consumers. The biggest advantage of this software is that it is cheaper. But its major disadvantage is that it does not meet all the needs of consumers.

Some examples of application software are: -

Photoshop
Pagemaker
Power point
Ms word
Ss excel