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Education Marks Proper Humanity

SIMOTI CLASSES

Education Marks Proper Humanity

SIMOTI CLASSES

Education Marks Proper Humanity

SIMOTI CLASSES

Education Marks Proper Humanity

SIMOTI CLASSES

Education Marks Proper Humanity

Friday, August 21, 2020

APPLICATIONS OF COMPUTERS IN VARIOUS FIELDS

APPLICATIONS OF COMPUTERS:

Computers are used in various fields in our daily life. Computers have made our life easier.

  • All government & private organizations use the computer to perform specific tasks, for entertainment, or just to finish office work.
  • With greater perfection & accuracy and less time taking computers can do a lot in a short time while that task a lot of time while doing manually.
  • It has taken industries & businesses to a whole new level.
  • It is used at home for work & entertainment purposes.

USES OF COMPUTER IN HOME:

The computer can be used at home in the following ways.
  • Home Budget: It can be managed home budget. We can easily calculate our expenses & income. We cal list all expenses in one column & income in another column. Then we can apply any calculations on these columns to plan our home budget. There is also specialized software that can manage our income & expenses and generate some cool reports.
  • Computer Games: An influential use of computers at home is playing games. Different types of games are available. These games are a source of entertainment & recreation. many games are available that are specially developed to improve our mental capability & thinking power.
  • Work-from-Home: People can manage office work at home. The owner of the company can check the work of the employees from home. The work being controlled by him, while sitting at home.
  • Entertainment: People can find entertainment on the internet. They can watch movies, listen to songs & watch videos to download different stuff. We people can also watch live matches on the internet.
  • Information: People can find various kinds of information on the internet. Educational & information websites are available to download books, tutorials, etc. to improve their knowledge & learn new things.
  • Chatting & Social Media: People can chat with their friends & family on the internet using different software like Skype, Hangouts, etc. One can interact with friends over social media websites like Facebook, Instagram, Twitter, Google Plus. They can also share photos & videos with friends.


USES OF COMPUTER IN EDUCATION:

Computer-Based Training (CBT) program includes text, graphics & sound, audio, video lecture, or record on CDs. CBT is a low-cost solution for educating people & train large people.

Benefits of CBT:
  • The students can learn new skills at their own place. They can easily get knowledge in any available time of their own choices.
  • Training time: can be reduced.
  • Training materials: interactive & easy to learn- encourages students to learn the topic in easy mode.
  • Plaining & time problems are eliminated.
  • The skills can be taught at any time & at any place.
  • Cost-effective to train a large number of students.
  • Training videos & audios are available at affordable prices.

Computer-Aided Learning (CAL):

  • It is the process of using information technology (IT) to help to teach & enhance the learning process. 
  • It can reduce the time that is spent on preparing teaching material.
  • It can also reduce the administrative load of teaching & research by use of multimedia projector & PowerPoint presentations.

Distance Learning Program (DLP):

  • New learning methodology.
  • Play a key role in this kind of learning.
  • Students do not need to come to the institutes.
  • Institute provides the reading material & the student attends virtual classroom (Google classroom).
  • In the virtual classroom, the teacher delivers a lecture at his own workplace.
  • Students can attend the lecture at home by connecting to a network & can also ask questions to the teacher.


Online Examination:

  • The trend of online examination is becoming popular nowadays.
  • Various examinations like GMAT, CAT, NEET, JEE, GRE, CSIR-NET are conducted online all over the world & it minimizes the chance of mistakes, as questions are marked by computer.
  • It also enables us to announce the result in time.


USES OF COMPUTER IN BUSINESS:

  • Businessmen are using computers to interact with their customers anywhere in the world, hence many businesses are performed more quickly & efficiently.
  • Use: To reduce the overall cost of their business.
It can be used in the business in the following ways;
  • Business: The computer made an integrated part in all business organizations, as it embedded a high speed of calculation, conscientiousness, accuracy, reliability, or versatility which made it an integrated part in all business organizations.



  • It is used in business organizations for:

 


Marketing: 

An institution or firm can use computers for marketing their products. The Marketing applications provide information about the products to customers & manages the distribution system, advertising & selling activities, deciding pricing strategies, customers and their needs & requirements, etc.

  • Advertisement: Professionals create art & graphics, write & revise copy, and print & disseminate adds with the goal of selling more products by using computers.

  • At-Home Shopping: It has been made possible through the use of computerized catalogs that provide access to product information & permit direct entry of orders to be filled by the customers. Eg. Flipkart, Amazon.

  • Stock Exchange: It is the most place for businessmen for trading & to conducts bids. They connect with the computer where brokers match the buyers with sellers & reduce cost as no paper or special building required to connect these activities.



USES OF COMPUTER IN MEDICINE & HEALTH CARE:

  • Hospital Management System: Specialized management software is used to automate the day to day procedure & operations at hospitals. Eg. Online appointment, payroll admittance, discharge records, etc.

  • Patient History: HMS can store data about patients in computers, like about patients, their disease & symptoms, the medicines that are prescribed.
  • Patient Monitoring: Monitoring systems are installed in medical wards & ICU to monitoring patients continuously. Eg. Pulse monitor, blood pressure, temperature & can alert medical staff about serious situations.
  • Life Support Systems: Specialised devices are used to help impaired patients like hearing aids, prosthetic footwear.
  • Diagnosis Purpose (Test Mode): A diverse software is used to investigate symptoms of the patient's disease & prescribed medicines accordingly. Sophisticated systems are used for tests like CT scan, ECG, & other medical tests. 
  • Patient Monitoring System: The computer checks patient's signs for abnormality such as Cardiac Arrest, ECG.
  • Pharma Information System: Computer checks Drug safety regulators, Drug-labels, Expiry dates, harmful drug's side effects, safety & efficacy of the medicines, etc. software like Medidata rave, etc.
  • Surgery: Nowadays, computers are also used in performing surgery. Eg. Laser operation in specialization filed of dermatology, oncology, etc.


USES OF COMPUTER IN ENGINEERING DESIGN:

Computers are widely used in Engineering purposes. One of the major is CAD (Computer-Aided Design), that provides creation & modification of the images. Some fields are:
  • Structural Engineering: Requires stress & strain analysis design for buildings, bridges, ships, airplanes, etc.

  • Industrial Engineering: Deals with design, implementation & improvement of the integrated systems of people, materials & types of equipment.
  • Architectural Engineering: Aids in planning towns, office design, interior design, designing buildings & determining a range of buildings on a site using both 2D & 3D drawings.


USES OF COMPUTER IN MILITARY:

Computers are largely used in defense. Modern tanks, missiles, weapons, etc. The Military also employs a computerized control system. Some military areas where a computer been used are:


USES OF COMPUTER IN GOVERNMENT:

The computer plays an important role in the government. Some major fields in this category are:

USES OF COMPUTER IN BANKING & INSURANCE:

Banking is totally dependent on the computer. Banks provide the following facilities:
  • Banks provide an online accounting facility, which includes current balances, deposits, overdrafts, interest charges, shares & trustee records.
  • ATM machines make it easier for customers to deal with banks.
Insurance companies like (LIC, ICICI, SBI, HDFC) are keeping all records up-to-date with the help of computers. They marinating a database of all policyholders with information showing:






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Thursday, August 20, 2020

History and Evolution of Computers

HISTORY & EVOLUTION OF COMPUTERS:

The computer may be classified into a number of generations. The classification may be based on:

Generations of Computers Based on Hardware:

 


First Generation Computers: (1945 -55)

  • The computer started with ENIAC.
  • 1951: It was then followed by the IBM UNIVACI (Universal Automatic Computer) built by Mauchly & Eckert.
  • This machine could perform business data processing.
  • Used: Vaccum tubes.
  • Because of vacuum tubes, computers were;
  • Very large,
  • Required lot of energy
  • Slow Input/Output
  • Suffered from heat & maintenance problems.
  • Language: Machine level language or machine language, Binary language.


Second Generation Computers: (1955 -65)

  • The Transistors were used in second-gen. computers- to overcome the difficulties faced in the first generations due to the use of vacuum tubes.
  • Transistor: It is a small component made of semiconductor devices. 
  • Benefits after use of transistors; 
  • the problems of heat were minimized.
  • The computer size was reduced.
  • Storage capacity - improved.
  • Machine language is replaced by higher-level languages: ALGOL, FORMAN.
  • Example of second-gen. computers: IBM 1620.


Third Generation Computers: (1965 -80)

  • The transistor is replaced by Integrated Circuits (IC).
  • These circuits are fixed on the silicon chip.
  • The silicon chip consumes less than 1/8th of an inch square on which 10 computer studies: 9 many electronic components like diodes, transistors, capacitors, etc. can be fixed.
  • The wire interconnections about the components of the circuit are minimized.
  • These computers were: smaller, faster & more flexible in terms of Input/Output.
  • It also satisfied the need for small business & computers became popular as "Minicomputers".
  • Language: C, COBOL, JAVA.
  • Example of third-gen. computers: IBM 360, PDP8, PDP11.


Fourth Generation Computers: (1980 -89)

  • The computer used large scale IC called VLSI (Very Large Scale Integration)
  • Because of VLSI, computers were: faster, smaller, reliable.
  • It soon evolved as interactive general-purpose machines that allow rapid application development.
  • It became more user-friendly & can be used widely for personal applications. Hence, it is called- "Personal Computers" (PC).
  • These computers can process billions of instruction/sec.
  • They are used for applications that require intensive numerical computations such as stock analysis, weather forecasting & other similar complex applications.
  • Language: SQL (Structured Query Language)
  • Example of fourth-gen. computers: IBM PC, Apple II, Supercomputer CRAY.


Fifth Generation Computer: (1989 -till)

  • The computers made smarter in terms of processing speed, user-friendliness & connectivity to the network.
  • These computers are portable & sophisticated.
  • The key features of the computers: Powerful desktops, notebooks, variety of storage mechanisms such as optical disks & advanced software technology such as OS & AI.
  • The languages are designed to make the computer solve as a given problem without the programmer. Example; voice recognition & intrusion detection. It uses AI techniques to meet their goal.
  • Artificial Intelligence (AI): can handle imprecision & supports human-like self-learning & problem-solving.
  • Example of fifth-gen. computers: IBM notebooks, Param 10000, Pentium PC.



Generations of Computer-Based on Software:

  • Software plays a vital role in computer systems by creating a bridge between computer hardware & computer user.
  • It can be considered as "Soul of Computer", without which the computer can't work.
  • Software is an organized collection of data & instructions given to computers in order to perform a given task. These components are data, instructions & documents about the software such as comments.
  • Program: The set of instructions.
  • Programming: The process of writing or coding.
  • Programmers: An individual who performs the programming or coding task.

There are two major types of software:


System Software:

  • It manages computer hardware & acts as an interface between computer hardware & software developed for business applications.
  • It provides functionalities like;
  • Booting computers properly, 
  • Managing memory, 
  • Channeling data from secondary memory to primary memory,
  • Example of system software: Operating system, Translator program.
  • Compiler: Some translator programs transform the whole source code written in a programming language (the source language) into another computer language- target language, binary language. Later the translated code is computed to the desired results.
  • Interpreters: Some translators program transform the source code into the target code in line by line fashion & produce the result at the same time.
  • Since interpreters try to convert the source program line by line, they can concentrate on a single line, hence it is not possible to analyze the source code.
  • Compliers are fast in comparison to interpreters.


Application Software:

  • It is a set of computer instructions that provide specific functions to users.
  • These functionalities may be general-purpose like- word processing or maybe very narrow, such as an organization's payroll program that generates pay-slips in the company's format, on the company's preprinted stationery.
  • It also supports business applications like printing reports from data stored, calculating bills, generating pay-slips, marking attendance, printing students' mark-sheets, etc.
  • Special software needs to be developed for this type of application support.

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Jharkhand Ki Mitti (झारखंड की मिट्टी )

झारखंड की मिट्टी 

(Jharkhand Ki Mitti)

 

झारखंड राज्य की सतही मिट्टी भी इसके भौतिक स्वरूप में महत्वपूर्ण भूमिका निभाती है। यहां की मिट्टी में खनिज पदार्थ प्रचुर मात्रा में पाया जाता है

💥 स्थलीय पृष्ठ की ऊपरी परत को मिट्टी कहते हैं 

झारखंड में कुल 6 प्रकार की मिट्टियां पाई जाती हैं 

(1) लाल मिट्टी 
(2) काली मिट्टी 
(3) लेटेराइट मिट्टी
(4) रेतीली मिट्टी या बलुई मिट्टी
(5) जलोढ़ मिट्टी
(6) अभ्रकमूलक  मिट्टी


उपयुक्त सभी प्रकार की मिट्टियों का वर्णन निम्न प्रकार  है:-

💥लाल मिट्टी

💨 लाल मिट्टी झारखंड के सभी क्षेत्र में पाया जाता है, राज्य की सबसे प्रमुख मिट्टी है, छोटानागपुर के 90% भाग में यह मिट्टी पाई जाती है
💨यह  शुष्क और आर्द्र  जलवायु के कारण लौह ऑक्साइड से भरपूर चट्टानों के टूटने और पीसने से बनती है। इस मिट्टी में कहीं-कहीं खनिजों के अंश होने के कारण इसका रंग पीला होता है 
💨यह मिट्टी  बहुत कम उपजाऊ होने के कारण इस में कृषि नहीं के बराबर होता है, इस मिट्टी में अनाज के रूप में बाजरा ही पैदा हो पाता है
💨लाल मिट्टी केवल अपवाद के लिए दामोदर घाटी की गोंडवाना चट्टानों और राजमहल की ऊंची भूमि में  नहीं पाई जाती है
💨 इसमें लौह तत्वों  की मात्रा अधिक होने के कारण अति रंध्र युक्त होता है 
💨अभ्रक मूलक लाल मिट्टी हजारीबाग और कोडरमा में पाया जाता है
💨लाल काली मिश्रित मिट्टी सिंहभूम और धनबाद में पाया जाता है

💥काली मिट्टी

💨काले एवं भूरे रंग की यह मिट्टी राजमहल के पहाड़ी क्षेत्र में पाई जाती है 
💨बेसाल्टिक मिट्टी सिलिकॉन पदार्थों से युक्त होती है, इसमें पोटाश , कोयोलीन, मैग्नीशियम और लौह   ऑक्साइड इत्यादि प्रमुख रूप से पाया जाता है  
💨इस मिट्टी में नमी वह आर्द्रता  बनाए रखने की क्षमता होने के कारण कृषि के लिए बहुत उपयोगी माना जाता है, इसमें कपास, चना और धान की खेती के लिए उपयुक्त माना जाता है
 

💥लेटेराइट मिट्टी

💨इस मिट्टी में लौह ऑक्साइड के साथ चुना, फस्फोरस और पोटाश भी पाया जाता है, लेकिन इसमें लौह ऑक्साइड की मात्रा सबसे अधिक होती है। 
💨रांची के पश्चिमी क्षेत्र, पलामू के दक्षिणी क्षेत्र, संथाल परगना के पूर्वी राजमहल के क्षेत्र, सिंहभूम के  दलभूम के दक्षिणी पूर्वी क्षेत्र में ऐसी मिट्टी पाई जाती है। 
💨यह मिट्टी कृषि के दृष्टि से उपयुक्त नहीं होती है, इस मिट्टी की उर्वरता बहुत कम होती है अरहर और अरंड  की खेती होती है 
 

💥रेतीली मिट्टी या बलुई मिट्टी

💨यह मिट्टी का रंग लाल और पीले रंग का मिश्रण होता है, जो हल्का लालिमा लिए रहता है।  
💨यह मिट्टी दामोदर घाटी क्षेत्रों में पाया जाता है। 
💨से मिट्टी में मोटे अनाजों की खेती के लिए उपयुक्त होती है
  

💥जलोढ़ मिट्टी

💨झारखंड में पाए जाने वाले मिट्टियों में सबसे नवीन मिट्टी है।  

💨राज्य में जलोढ़ मिट्टी के दो प्रकार हैं 

(1) भंगार ( पुरातन जलोढ़) मिट्टी, 
(2) खादर (नवीन जलोढ़) मिट्टी पाए जाते हैं। 

💨यह मिट्टी बहुत उपजाऊ होती है, ऐसे मिट्टी में धान,गेहूं की खेती के लिए बहुत उपयुक्त होता है। 

💨जलोढ़ मिट्टी झारखंड के तीन क्षेत्र में पाया जाता है 

(1)साहिबगंज का उत्तर  पश्चिमी भाग -भंगार ( पुरातन जलोढ़) मिट्टी, 
(2) साहिबगंज का उत्तरी पूर्वी किनारा भाग -खादर  (नवीन जलोढ़) मिट्टी,
(3) पाकुड़ का पूर्वी क्षेत्र 

💨साहिबगंज का उत्तर पूर्वी क्षेत्र झारखंड का सबसे उपजाऊ क्षेत्र है
 

💥अभ्रकमूलक  मिट्टी

💨यह रेतीली मिट्टी अभ्रक के अंशों  से प्रभावित होकर चमकदार होता है
💨 शुष्कता के कारण इसका रंग हल्का गुलाबी हो जाता है और नमी के कारण पीला दिखाई देता है
💨 झारखंड राज्य के अभ्रक के खाने वाले क्षेत्रों, 
💨जैसे कोडरमा, झुमरी तलैया, मांडू ,बड़कागांव में यह अधिक पाई जाती हैं।
💨 कहीं-कहीं इस मिट्टी में कोदो, कुर्थी आदि फसलें उगाई जाती हैं। 

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