The Tech Storror

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