Computer is an electronic device that takes data (input), processes it according to given instructions, and gives results (output). Also it can store data, instructions, and information and reproduce them whenever needed.
APPLICATIONS OF COMPUTER
Computer is playing an important role in almost every field such as:
Education-Computers can be used as an educational tool that can teach students with the help of Computer Based Training Programs (CBT) that includes text, sound, and pictures. Also students can test themselves by attempting online tests.
Entertainment-Computers offer games and other entertainment items like songs and movies.
Communication-Computers provide the cheapest source for long-distance communication with the help of the Internet, we can send or receive Electronic Mails (Emails), talk to people (Voice Chat and Video Conferencing), and access information from anywhere in the world.
Office-Computers are broadly used in offices for typing letters, making presentations, making reports, maintaining appointments, etc.
Medical-Computers are used in hospitals to help doctors in storing patient's records and diagnose the disease.
Research and Development-Computers can perform complex calculations accurately and efficiently. Due to this, these are also used in research work such as space research or market
research etc.
Banks-Banks working involves a lot of transactions and calculations, with computers, all such transactions can be performed without errors and at faster speed with 100% accuracy.
Transportation-Due to computer networking, various railway stations are connected to each Other and it is quite easy for a user to book a seat from anywhere all over the country. Same is true for air reservation·
Other Areas- There are various other areas where computers are being used such as Stock Market, Hotels, Shipping Industry, etc.
UNIT-201
- Computer and its application
- Block Diagram of Computer
- Generations of Computer
- Concept of Memory(Primary and Secondary)
- Input Devices
- Output Devices
- Concept of Software(System and Application)
- Number System
- Conversion decimal to binary/binary to decimal