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Saturday, February 19, 2022

Basic Applications of Computer

Computers are used in almost every aspect of life. They are employed in a variety of settings, including homes, businesses, educational institutions, research organisations, the medical industry, government agencies, and entertainment.

Basic Applications of Computer - areas in which computers are used at high level
Basic Applications of Computer - areas in which computers are used at high level


Home / Personal Use

Computers are utilised in homes for a variety of functions, including online bill payment, home tutoring, social media access, gaming, and internet access. They use electronic mail as a means of communication. They assist corporate employees in obtaining work-at-home options. Students can use computers to access online educational resources.


In hospitals, computers are used to keep track of patients' medical histories, diagnoses, X-rays, and real-time patient monitoring, among other things. Surgeons increasingly employ robotic surgical instruments to undertake delicate operations and conduct surgery from a distance. Virtual reality is also utilised for training. It also aids in the monitoring of the foetus within the mother's womb.


Computers allow you to view movies online, play games online, and function as a virtual entertainment while you play games, listen to music, and so on. People in the entertainment sector can use MIDI devices to record music using artificial instruments. Full-screen televisions may be fed videos from PCs. There are a variety of photo editors accessible, each with its own set of functions.


Computers are utilised in a variety of businesses to execute activities such as inventory management, design, virtual sample product creation, interior design, video conferencing, and so on. The potential of online marketing to offer various items to inaccessible locations such as the interior or rural areas has witnessed a significant improvement. Through the use of computers, stock markets have witnessed amazing engagement from a wide range of individuals.


Online classrooms, online assessments, referencing e-books, and online tutoring are all examples of how computers are utilised in education. They contribute to a greater usage of audio-visual aids in education.


Computers are used in government sectors to process data, maintain a citizen database, and enable a paperless environment. Computers have substantially aided the country's defence institutions in the creation of missiles, satellites, and rocket launches, among other things.


Computers are utilised in the banking industry to store client information and handle activities such as cash withdrawals and deposits through ATMs. Banks have greatly reduced manual mistakes and costs by utilising computers extensively.


Computers are now completely interwoven into business. Transaction processing, which includes dealings with suppliers, workers, and consumers, is the primary goal of business. These transactions may be made simple and accurate with the help of computers. Computers may be used to examine investments, sales, costs, markets, and other areas of company.


To reduce money and increase performance, many companies utilise computer-based training to teach their personnel. By allowing individuals in different areas to interact via video conferencing using computers, time and travel costs may be saved.


In dancing, photography, the arts, and culture, computers are widely employed. Dance may be animated in real time to depict the fluid movement of the dancers. Computers can be used to digitise photographs.

Science and Engineering

In Science and Engineering, high-performance computers are used to excite dynamic processes. In the field of research and development, supercomputers have a wide range of uses (R&D). Computers can be used to make topographic pictures. To gain a better knowledge of earthquakes, scientists utilise computers to map and analyse data.

Sunday, January 23, 2022

Introduction to computer system

  What is Computer?

Computer is an electronic device which accepts the input data with the help of Input devices, read them in memory unit and process them with the help of central processing unit and finally process the output with the help of output devices under the directions of stored sequential set of instructions called "Program".

Introduction to computer system: What is Computer and how does it work

Introduction to computer system: 1. What is Computer and how does it work

A computer is a programmable electrical device that receives raw data as input and processes it with a set of instructions (a programme) to create the result as output. It generates output only after executing mathematical and logical operations and can preserve the output for later use. It can handle both numerical and non-numerical calculations. The name "computer" is derived from the Latin word "computare," which meaning "to calculate."

Data (Input):

Input refers to the raw data entered into a computer through input devices. It is a collection of letters, numbers, graphics, and so on.


The operation of data in conjunction with the relevant command is known as the process. It is a completely internal computer system function.


The processed data provided by the computer after data processing is referred to as output. Output is sometimes referred to as Result. These result can be preserved in storage devices for subsequent use.

In simple words computer system works on the basic IPO model, where "I" stands for INPUT, "P" stands for  PROCESS and "O" stands for OUTPUT.

What are the components of a modern computer?

A computer is made up of four major parts: a CPU, a graphics processing unit (GPU), random access memory (RAM), and either a solid state drive (SSD) or a hard disc drive (HDD). All of these components are linked to a motherboard. The GPU and CPU are often found in the computer's chip-set. Memory (RAM) and storage (SSD/HDD) components are often easier to change or replace than the chip-set.

When was the first computer invented?

Charles Babbage, an English engineer, and Ada Lovelace, a mathematician, invented the first mechanical computer in the early nineteenth century. The Difference Engine was at the heart of the computer, and it was in charge of performing computations with several sets of numbers and outputting the results.

The Atanasoff-Berry Computer was the very first digital computer (ABC). The ABC was invented in 1942 by Iowa State University professor John Vincent Atanasoff and graduate student Cliff Berry. This computer utilized vacuum tubes to do binary computations and to execute Boolean logic. However, because the ABC lacked a CPU, it could not be programmed. Subsequent computer evolution introduced programming skills, RAM, transistors, microprocessors, and portability as essential features.

Introduction to computer system: 2. What is Computer and how does it work

Introduction to computer system: 2. What is Computer and how does it work

What are the many sorts of computers?

Microcomputers, often known as personal computers,


Mainframe computers


Workstation computers




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