Question

About
computer
OR
What
es
Computer?
pls do it fast it's important​

Answer 1

Answer:

a computer is an electrnic device which help us to do task easily by giving them raw input and it gives us result as output process.

Answer 2

The term 'computer' was derived from the Greek word 'computare' which means to compute or calculate. A computer is an electronic device that can perform a variety of tasks in accordance with a set of instruction called program. The computer inputs the command or signals from the input devices such as mouse and keyboard and processes some internal functions to calculate the result and finally shows the output result to the output devices such as monitor and printer.
The major characteristics of computer are as follows:
Electronic
Speed
Storage
Accuracy
Versatility
Diligence
Automation
Non-intelligence
Word length

2.
a. Hardware: Computer hardware is the collection of physical components that make up a computer. Examples of computer hardware are input devices like keyboard and mouse, output devices like printer and monitor, storage devices like disk drive and the computer itself.

b. Software: Software refers to parts of computer which do not have a material form, such as programs, data, protocols, etc. software refers to something intangible. Basically, software is a program, written by a programmer which controls specific parts of computer or specific application.

c. Firmware: A set of micro instructions stored in a chip is called firmware. Micro instructions are hardware level instructions which are directly executed by the hardware. It is added at the time of manufacturing. It is used to run user programs on the device


3.
The application areas of computer are described below:
Banks: Banks provide online accounting facility, which includes current balances, deposits, overdrafts, interest charges, shares, and trustee records. ATM machines are making it even easier for customers to deal with banks.
Engineering: Computers are widely used in engineering purpose. One of major areas is CAD (Computer aided design). That provides creation and modification of images.
Medicine: Computers have become important part in hospitals, labs, and dispensaries. The computers are being used in hospitals to keep the record of patients and medicines. It is also used in scanning and diagnosing different diseases. ECG, EEG, Ultrasounds and CT Scans etc., are also done by computerized machines.
Education: The computer provides a tool in the education system known as CBE (Computer Based Education). The computer education is rapidly increasing the graph of number of computer students. It is used to prepare a database about performance of a student and analysis is carried out on this basis.
Ticketing: In today's world one can book air or railway tickets online with the help of computer and internet and could knows all the relevant information. Ticketing system are also applied in bus, hotel and cinemas tickets reservations.
Defense: Computers are largely used in defense. Modern tanks, missiles, weapons etc. Military also employs computerized control systems. Some military areas where a computer has been used are missile control, military communication, military operation and planning.
Business: A computer has high speed of calculation, diligence, accuracy, reliability, or versatility which made it an integrated part in all business organizations. Computers are used in business organizations for payroll calculations, budgeting, sales analysis, financial forecasting, etc.
Government: Computers play an important role in government. Some major fields in this category are budget, sales tax department, income tax department, computerization of voters lists, weather forecasting,etc.
Desktop publishing: We can use computer for desktop publishing, for example: create layout for magazine, newspaper, book, etc. One can create animation and portrait also with the help of different software tools.
Communication: Communication means to convey a message, an idea, a picture or speech that is received and understood clearly and correctly by the person for whom it is meant for. Some main areas in this category are email, chatting, ftp, telnet, etc.