Skip to main content

The role of computers in information systems? Describe the human information system model and the functions of information systems?

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 data storage. Computer plays an important role in storing the necessary information in the right way.

Information Dissemination: Information system provides necessary information to the organization. Computers are needed to make this information delivery work a success. The organization collects necessary information with the help of computers.

Updating: The information system provides updated or modern or current data. Computers also play an important role in updating data. For example, BRAC Bank provides online banking services to its customers. If a customer withdraws money from the bank account, his account will be updated through the computer network.

Website: Website carries the identity of an organization. Because, website organization has different information. Entry, download etc. work is not possible without computer. User or buyer enters the website of the organization. Can learn about the organization by collecting various information.

Information Presentation (Information Presentation): As a result of computer technology, information presentation has been added. Information can be presented in graphs, charts, pictures etc. in an attractive way through computers. This makes content easier to understand


Human information system model 

Every human body has an information system. The Human Information System model is shown below. Observing this human information system model gives an idea of ​​the information systems required for our daily activities. In the human information system model, we take input into this information system from the environment through the five senses (eyes, ears, mouth, nose and nerves). There are different types of memory in our brain, namely- internal memory (short-term memory and long-term memory) and external memory (notebook, diary, reference etc.). It is in this memory that the brain does the necessary processing of the received input and later expresses various actions (such as speaking, writing or doing something etc.) in the form of output. All work is controlled by the brain.

Functions of information system: Converting data into information is the main function of information system. However, the information system usually completes this task from data collection to processing and providing or storing information to the user as an output. These tasks are usually done through four functions which are summarized below--

(i) Input function

(ii) Output function

(iii) Processing function

(iv) Storage function


(i) Input function: The function of input function is to supply data through input into the data system.

(ii) Output function: The output function expresses the previous information or result of the processing of the system.

(iii) Processing function: The task of processing function is to process data or data in specific rules and convert it into information. Note that this task is accomplished by providing the necessary instructions to the software.

(iv) Storage function: Through the storage function, the previous data or data and the post-processing information are stored. They can be reused if necessary.

Labels:

Comments

Post a Comment

Popular posts from this blog

What are the things to consider when buying a WiFi or broadband router for home, office, park and restaurant ?

Today we talk about What are the things to consider when buying a WiFi or broadband router for home, office, park and restaurant .I never like huge introduction about any topic . I always like very shortly introduce any-things to my viewers without any-type boring .So let's began the leanrning :- 1. Decide in advance how many devices you will use. 2. Decide how much space you need coverage. 3. Understand the structure of your home. WiFi signals become weak to penetrate the walls. That is why good coverage is not available. If you have a lot of walls in your house and you want to get coverage in the whole house, then you need a router with high power and wall penetration feature. 4. Decide what features you need in addition to the internet connection. Such as: - 4.1 3G 4G Modem Support- There are many routers that can use the modem. Those routers have a USB port and a one port so that broadband lines can be used. But remember that the modem must have the ability to auto-connect. Not...
Post a Comment
Read more

What should the processor look at?

The things that we all should keep an eye on are the processor or not; 1. Clock speed 2. Number of course 3. cache memory 4. FBS 1. Clock Speed: It is also called GH2. All processors are written on. Clock speed means how fast your computer can work. That's what this signal means. The speed of the processor is known through this clock speed, how fast the calculation can be done. 2. Number of Cores: The more cores the processor has, the faster the processor can work. If I give an example to explain the matter, I hope you can understand it very easily. Suppose if a person had many hands, then he could do many things at the same time. That is, if we go to the market and buy a smartphone, then we will see what the configurations of the phone are. If we look closely at the configuration of the smartphone, we will see that Dual Core Processor, Quad Core Processor, Octa core processor, Hexa core processor, Deca core processor. This means that the dual core processor has two arms or cores, ...
Post a Comment
Read more

What is transmission media? Introduction to different types of data transmission cables

Transmission media: When a PC communicates or wants to communicate with another PC, it has to take the help of some transmission media. The most commonly used media in the network are twisted pair cable, coaxial cable, fiber optic cable. Nowadays, the use of optical fiber is increasing greatly. Radio wave, microwave and infrared technologies are prominent among wireless media. Among these mediums, optical fiber has the highest data transfer speed. The type of medium used in a network depends on the type and location of that network. The connection system for exchanging information between the sender and the remote receiving end is called a channel. The means or methods used to implement the channel are called media. such as-- (i) Cable or wire. (ii) Common telephone lines. (ii) Radio waves. (iv) Microwave. (v) Geo-satellite systems etc. Cable or Wire: Cable is an important medium in data communication. Cables are generally used for data transfer over short range networking such as LAN...
Post a Comment
Read more