The Tech Storror

Computers can understand only low-level or machine language. If a program is written in another language, the computer converts it into machine language with the help of a suitable translator (assembler, compiler, interpreter) before execution. The development of computer programming languages ​​is divided into five stages. And this period is called the generation of programming languages. In other words, the programming language evolution period can be divided into five parts depending on the characteristics of the programming language. These divisions are called a generation. For example: For example: All the languages ​​that were discovered from 1945 to 1949 have been given a no. Again, all the languages ​​that were discovered from 1970-1979 have been known or identified by another name. _____________________________________________ At a glance, the computer generations are respectively: First Generation --- First Generation (1945-1949) \ Machine language or mechanical language (mac...

Computers can only understand machine language. If a program is written in another language, the computer converts it into machine language with the help of a suitable translator (assembler, compiler, interpreter) before execution. Programming languages ​​are again divided into different levels on the basis of program composition features: 1. Low Level Language   -Machine Language, Assembly Language 2. Mid Level Language -C, Forth, Dbase, WordStar 3. High Level Language -Fortran, Basic, Pascal, Cobol, C, C++, Visual Basic, Java, Oracle, Python 4. Very High Level Language (4GL) -SQL, Oracle 5. Natural Language - Human language

Well imagine a day without internet. Well, if there is no internet one day, then what will you do on that day ❓ will you make use of your wasted virtual time ❓ or will you spend it unnecessarily by chatting with friends ❓ or will you waste your time unnecessarily without doing anything without learning anything 🙄❓ This is just me or your story. What will be the impact on the lives of billions of other virtual people besides us if one day the world is without internet ❓ What will happen to millions of Facebook pages? What will happen to millions of Facebook groups? Where will the dream of YouTube silver, golden button victory be lost? Where will YouTube's million + millions of channels of subscribers be lost ❓ Will those pages, groups, channels be important tomorrow? Will anyone want to work or will they be able to do it on those days without internet❓? If there is no internet for a day then thousands of dollars Bangladesh stock market will be threatened. The New York Stock Exchang...

  Technology is doing just as much damage to human life as it is to development Another cursed technology name in this technology world is deepfake. The meaning or explanation is hidden in the name of this technology of making the truth a lie and the lie a truth. What is the proper  definition of deepfake technology?   It is called deepfake because it can disprove the truth very deeply and accurately. Deepfake technology can become a curse of human life by using artificial intelligence and machine learning. This technology can use artificial intelligence and machine learning to mimic someone's appearance, behavior and speech in a video. What could not be done so far can now be done with this technology. So far we have seen that only pictures of someone else could be attached to someone else's body. But with the advent of deepfake technology, videos can now be made by attaching one person's body to another's face. It can even change the shape of the face associated wi...

Difference between manual information system and computer based information system Computer Based Information System: (i) Computer based information system consists of human resource hardware, software, communication network and data resources. (ii) These systems use hardware, software, communication networks and data resources. (iii) The process of data processing is much easier, the effort is much less but the result is much more than that. (iv) It is also less time consuming and error prone. (v) collects, transforms and processes the information of an organization with the help of such information system and provides it as required by the organization. (vi) Examples of Computer Based Information Systems: Office Automation System, Management Information System, Transaction Processing System, Management Support System, Bank Management System etc. Manual Information System (i) Manual information system without computer or any other electronic equipment, making, using and exchanging inf...

 Search Engine Optimization There are many search engines in the world, such as the most famous is Google, followed by Yahoo, Bing etc. If someone wants to learn HTML in Bengali, he might search Google by writing "HTML Tutorial", because he might not know the address of any website that has HTML Tutorial in Bengali. Now let's say there is a website that has HTML Tutorial in English. Now if "HTML Tutorial" If you search on Google by writing ", the first link on the first page of Google is the site, then the user who was searching for "HTML Tutorial" will definitely go to that site. This one's site showed up first on Google, even though there are many sites, blogs, forums etc. that have HTML in Bengali, the site that showed up first had adopted some techniques, these techniques are called Search Engine Optimization (SEO). -Search Engine Optimization (SEO) is mainly of 2 types, namely-- 1. On Page (which is done within the site, ie- title tags, c...

Mobile Internet Currently, mobile phone companies are providing Internet services to mobile phones with the help of GPRS and EDGE technology. In this case, Wireless Application Protocol (WAP) technology is used, where no carol and modem are required, very easily from any part with the help of mobile phone internet - mail exchange, internet banking, e-comy searching for important information, shares in capital market. Important information regarding shopping, admission to educational institutions and any breaking news is known. Advantages of using internet on mobile phones: (i) Exchange of essential information easily with the help of internet from anywhere within mobile network coverage. (ii) The cost of using the Internet is relatively low. (iii) No hassle of connecting cables and modems. (v) All the facilities of internet are available on mobile phones. Such as e-commerce, online banking, medical services, searching for important information, selling shares, searching for important i...

Decision support and executive support systems Decision Support System-DSS: Decision support is a comprehensive computer-based information system, which helps management in decision-making. Such systems collect various business data and generate reports, which help in future decision making. Data is collected in transaction processing systems, reports are prepared using data stored in management information systems, and decision support systems analyze the status of reports to assist in decision making. DSS can be used by middle managers as well as top managers. DSS helps managers to make semi-structured, unique or rapidly changing decisions. It is used on a daily basis by the shipping manager to execute a variety of contracts. Features of Decision Support System: (i) Decision support systems use sophisticated analysis and modeling tools. (ii) DSS helps the manager in taking semi-structured, unique or rapidly changing decisions. (iii) DSS is used by middle and top level managers. (v) ...

Role of Computer in Information Systems The role of computer in information system is very important. Below is the role of computer in information system. Data collection: Information systems collect, store and provide data. These tasks are done with the help of computer. With the help of computer network, scattered data is collected, that is, the role of computer is very important in data collection. Data Organize: The data collected in the information system is organized with the help of computers. The information is then used as needed. Various computer programs solve this formatting task. As a result, the scattered data turns into essential information. Support Network Establishment: Network establishment is impossible without a computer. Information networks are developed with the help of computers. As a result, users can exchange different information with each other. Data Storage: Data is stored in the information system. A complete information system cannot be developed without...

Clasification of computer network Computer communication, information sharing, electronic mail, electronic libraries, bulletin boards, etc. using computer networks are increasing in prevalence and spread. As a result, different types of networks are used in different countries of the world today. That is why the computer networks used in the world are classified from different points of view: namely-- (a) Classification of Networks by Ownership : (i) Private Networks and (ii) Public network. (b) Computer network according to type of work According to the type of work computer network can be mainly divided into three parts. These are- (i) Peer-to-peer network (ii) Client-server network (iii) Hybrid network (c) Classification of networks according to geographical extent : (i) Personal Area Network (PAN) (ii) Local Area Network (Local Area Network-LAN) (iii) Metropolitan Area Network (MAN) (iv) Wide Area Network (Wide Area Network-WAN) In general, network segmentation refers to the classi...

 Internet The Internet is the dominant medium in the computer networking process of today's world. Thanks to the Internet, all the computer users of the entire world have been able to be bound in the same circle. As a result, mutual cooperation, solidarity, etc. have increased unexpectedly. So some call the Internet a network of networks. However, it can be said that the Internet is the dominant force in all computer networking in the current world. The “Internet” is dominating the field by bringing the vast empire of the computer world into its hands. Thanks to the Internet, the communication system has been greatly improved. People can get news from different parts of the world in a short time and at a low cost. You can send the necessary information to the nearest person in any part of the world in a moment. Milestones of internet speed. It plays an immense role in today's communication system and information exchange. NET family members will find solutions to most of their ...

Hotspot, Wi-Fi, Wi-Max, Bluetooth Hotspot: Hotspot is a type of wireless network that provides internet connection to mobile computers and devices such as smartphones, PDAs, tablets, netbooks, notebooks or laptops. Currently, the three popular hotspot technologies are – 1. Wi-Fi 2. Wi-Max 3. Bluetooth Wi-Fi: Wi-Fi or wireless fidelity is a popular wireless technology that uses radio waves to connect any electronic device to a high-speed Internet connection or computer network to exchange data. It is technically known as IEEE 802.11b. Wi-Fi technology is relatively faster (11 Mbps) and less expensive than standard Ethernet and other common wired LAN technologies. Thus, the Wi-Fi wireless LAN connects laptop PCs, PDAs, smart phones, tabs and other devices with Wi-Fi modems to the rapidly growing business, public and the planet to easily connect to the Internet and other networks. A faster version (802.11g) with a speed of 54 Mbps promises widespread use of this technology. Features of Wi...

Different generations of mobile telephone systems A stage or stage of increasing use and development of mobile phones is called mobile phone generation. The mobile technology invented so far can be divided into four generations. Below is a detailed discussion about its generation. First generation: In 1983, the first generation of mobile phones commercially introduced in North America, called AMPS (Advanced) Mobile Phone System) used AMPS analog signals to communicate. Its link channels are separated by FDMA (Frequency Division Multiple Access) method. This system uses two analog channels, namely — forward and reverse, base station reverse. Besides, there were two other mobile phone systems in operation called first generation CT/1 and NMT. First generation mobile systems have the following features -- (i) This generation uses analog system of radio signals. (ii) Cell signal encoding method is FDMA. (iii) Mobile phones are smaller in size and lighter in weight than the typical telepho...

Types of mobile or cellular sets  Mobile phone service providers are offering various services to the customers. Due to different uses of mobile phones, nowadays people are using different types of mobile phone sets. Based on the structural aspects and multipurpose use of the mobile phone, mobile or cellular phone sets can be divided into several categories. namely -- (i) Basic Mobile Phones (ii) Camera mobile phones (iii) Music or MP-3/MP-4 mobile phones (iv) Video mobile phones (v) Smart mobile phone (vi) PDA or Note mobile phone Types of mobile phone technology: The current mobile phone technology can be mainly divided into two categories, namely--  (i) GSM = Global System for Mobile Communication, technology and (ii) CDMA (CDMA Code Division Multiple Access) technology.   GSM  It was first named Group Special Mobile (GSM) in 1982, then the definition of the name was changed to Global System for Mobile Communication (GSM). The third generation version of GSM techn...

Mobile telephone system A system designed to exchange data and information between two mobile devices or one mobile and one fixed device is called a mobile telephone system. The mobile device is called Mobile Station (Mobile Station or MS) or Mobile Unit or Mobile Set and the fixed device is called Land Unit. A mobile service provider divides its coverage area into smaller segments. Each division is called a cell. From this cell another name of mobile phone has been given as cellular phone. A cell consists of an antenna and a small office, the small office with the antenna is called a base station. Each base station is controlled by a mobile switching center from where call connection, call information recording, billing system are controlled in a computerized manner. Cell size usually depends on population density. Cell sizes can typically range from 1 mile to 12 miles. Cellular phones are now also known as mobile phones. Nowadays, data such as audio, video, image, text etc. can be ex...

Electronic commerce or e-commerce The full name of E-Commerce is Electronic Commerce. Electronic commerce refers to the online process of exchanging business information, maintaining relationships between sellers and buyers, producing goods or services, marketing, selling, delivering, servicing and paying prices using the Internet. In today's internet age, e-commerce does not mean only buying and selling of goods online or on the internet. On-line product and service delivery excellence, on-line processing development, marketing management expansion and dissemination, global internet e-commerce community formation implies. Use of electronic commerce: E-commerce requires the use of information technology, telecommunication systems and internet technology. Important uses of e-karmas are-- (i) E-commercemust ensure accurate information, marketing, transaction execution and secure payment settlement procedures for the buyer. (ii) Trade and business partnerships rely on the Internet and...

Protocol: A protocol is a set of rules by which a computer communicates with another computer. Protocol is also called by some as the language of network. That is, the accepted rules for proper communication between networked computers are called protocols Introduction to Communication Protocol : A computer network connects numerous computers. System means computer, terminal, remote sensor or device that can receive data. Now the equipment may not be manufactured by the same manufacturing company. After data is sent from one system and flows through the network, the system must be built, the network established, and the software developed to be received accurately and intelligibly by the other system, but following the rules. If the software vendor companies develop software following the protocol, it will be possible to communicate between the computers of all the companies. After all, the protocol is a standard for establishing communication between the computer and the terminal. L...

Network Topology Computer network topology: The way computers are connected to each other in a network is called topology. This topology plays a special role in network design. The appropriate topology needs to be selected based on which network will be used for which task. Types of network topology: Computer network topology is mainly of two types, namely- (i) Physical Topology and (ii) Logical Topology. Physical topology: Networking media is associated with various network devices. That layout is called physical topology. Physical topology can be divided into the following six categories, namely-- (i) Bus Topology (ii) Ring Topology (iii) Star Topology (iv) Tree Topology (v) Mesh Topology (vi) Hybrid Topology Bus Topology: In bus topology all the computers (nodes) are connected with a single connection line. Here the connection line is usually called a bus. When a computer sends a message to another computer, the message signal travels through the connection line and reaches all t...