Computer Science, asked by yaashhh4428, 11 months ago

What is computer? And what is strength and weaknesses of computer wikipedia?

Answers

Answered by harshsinha20

A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. A "complete" computer including the hardware, the operating system (main software), and peripheral equipment required and used for "full" operation can be referred to as a computer system. This term may as well be used for a group of computers that are connected and work together, in particular a computer network or computer cluster.

Computer

Acer Aspire 8920 Gemstone.jpg Columbia Supercomputer - NASA Advanced Supercomputing Facility.jpg Intertec Superbrain.jpg

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Computers and computing devices from different eras

Computers are used as control systems for a wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer-aided design, and also general purpose devices like personal computers and mobile devices such as smartphones. The Internet is run on computers and it connects hundreds of millions of other computers and their users.

Early computers were only conceived as calculating devices. Since ancient times, simple manual devices like the abacus aided people in doing calculations. Early in the Industrial Revolution, some mechanical devices were built to automate long tedious tasks, such as guiding patterns for looms. More sophisticated electrical machines did specialized analog calculations in the early 20th century. The first digital electronic calculating machines were developed during World War II. The speed, power, and versatility of computers have been increasing dramatically ever since then.

Conventionally, a modern computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logical operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices include input devices (keyboards, mice, joystick, etc.), output devices (monitor screens, printers, etc.), and input/output devices that perform both functions (e.g., the 2000s-era touchscreen). Peripheral devices allow information to be retrieved from an external source and they enable the result of operations to be saved and retrieved.

Etymology

History

Types

Hardware

Software

Networking and the Internet

Unconventional computers

Future

Professions and organizations

Uses/Advantages of computers:

Storage: Computers can be used for storing data and using it while it is required.
Accuracy: Computers are very accurate. Hence, they have very high accuracy.
Efficiency: It is easy to use and understand the computer. We can do complex calculations, complex work on computer easily.
Communication: Computers can be also used for communicating through internet.
Internet: Once, we are connected to internet, then we can do exploration of the outer world.
Scientific calculations and predictions: At higher level, Computers are used for weather predictions, medical science, space research, AI development etc.
Employment: Software companies provides a lot of Jobs opportunities to people. Hence, Computers provides employment.
Speed: Computers have ability to perform the large task very rapidly.

Disadvantages of Computers:

Costly: Nowadays computers are costly. Due to which, poor people can't buy them.
High repairing cost: As computers are very costly. There repairing parts too are costly.
Overuse: Overuse of computers lead to various health diseases like problem in Back vertebral column, problems in neck and even Brain tumor may happen.
Effect on Children: Video games of computers affects the small child's most.

Types of Computers:

1) Mini computers - Usually they are found in the Mini electronic devices like smartwatches, Calculators, Smartphone.

2) Tablet computers

- Tablets which we see in our daily life; Eg: i-Pad, Samsung Tab....etc.

3) Digital computers

- All the computers which we use today are digital computers. Digital computers are also referred as Personal Computer(PC).

4) Super computer - This computers are generally used for research work, Meteorology, Servers, Space research etc.

Generations of computer:

1st generation of computer is beginning of the age of computers. In the first generation computers,
In the second generation of computers, The major change was using Transistors.

3rd generation of computers used Integrated circuits for data processing.
Microprocessors were invented and used in 4th generation of computer.
Today, we are living in the 5th generation of computers. In this generation of computer, there is use of Nano processor.

Components of computer:

There are 5 basis components of computer, which helps computer system to run properly without any interruption. A computer system is designed in such a way that, every byte of information inputted should be processed properly, Such that user should get the required output.

i) Input Unit

- Input units reads the data provided from input device.

- This data in the form of binary code is sent to the computer unit.

- Computer unit processes the information and provides the necessary output to the user.

ii) Output unit

- It accepts the information provided by computer system in binary codes.

- But, we humans can't understand that language, So, Output unit converts the information from binary language to Humans language.

- Output unit includes Monitor, Sound system etc.

iii) Storage unit

- Storing the data and information in memory provided to output unit as a history.

- Processing the files required to output unit while using programs, applications and games from storage devices.

IV) Central processing unit (CPU)

- Arithmetic logical unit and Logical unit are the important components of this system.

- Architecture of computer is designed in this CPU, such that, only supported devices can perform the operations. Like CPU designed by IBM cannot be used to run Mac OS.

V) Arithmetic and Logic unit (ALU)

- ALU is an important component of CPU.

- ALU receives the data for processing from the temporary storage from the files called as "registers".

- All processing and computations are done by the ALU.

Charles Babbage is a founder of Computers. He was mathematician, Mechanical engineer, philosopher and inventor. He is everything that first created a programmable computer. Because of this great invention, Today, we are living a digital life.

Learn More:

Computer - Uses, Advantages, Structure and Organisation -brainly.in/question/4176835

Artificial Intelligence - It's uses, Advantages and Disadvantages, Applications, It's working and Machine Learning - brainly.in/question/14024876

Components and Units of computers - https://brainly.in/question/13754251

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