easy about advantages and disadvantages of computers
Answers
Computer
What is a computer? A computer is an electronic device that receives and processes information to produce the desired results.
A computer can perform a large number of tasks by carrying out complex arithmetical, logical or other set of instructions called programs.
It plays an important role in our life. Our life has become centered around computers and computerized systems.
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dvantages
Computers can quickly process huge amount of data. Computers can complete various tasks effectively than most human-beings. It has automated complex tasks that were once considered boring and tedious for humans. Hence, Computer has greatly increased our efficiency to do various tasks. The advantages of computer are given below:
Stores data in digital format: Computers can store millions of pages of information in digital format.
Huge storage: We can store huge information. The present day hard-disks can store 100s of Gigabytes (GB) of information. Large businesses store their marketing and sales data in their computer systems. Even sensitive data of customers are securely protected in a computerized environment.
Play games: When it comes to games, the choices are almost unlimited.
Calculations: Businesses are increasingly using spreadsheets and other software as a tool for performing mathematical calculations.
Prepare and store official documents: You can use a word processing software to prepare, edit and save any text document. The concept of paperless offices is finally taking its shape.
Presentations: If your office demands that you prepare presentations, you can prepare it in a PowerPoint.
Internet: You can connect your computer to Internet and browse through huge data. People use internet for various purposes. Students can use internet to download study materials. A research analyst can do market research over internet. A marketing person can gather relevant data across various geographical boundaries. A prospective customer can find a service provider over internet.
Multimedia: Computer can also be used as an entertainment device. We can play various multimedia applications such as music, video, etc.
Prepare books of accounts: With the help of accounting software, we can prepare our books of accounts.
Reduced cost: The introduction of computer has resulted into a reduction of cost to perform various complicated tasks.
Availability: A computer doesn’t get tired. It can perform non-stop. You can start working on your computer whenever you feel that the time is right. Your computer is always available for you.
Disadvantages
It is true that even computer is not free from defects. The disadvantages of computer are given below:
Ever changing technology: The technology that is new today, may soon become obsolete. We need to regularly upgrade the hardware and software in a computerized environment. This involves additional time and cost.
Increased manpower cost: The computer needs to be operated by skilled person. This has led to an increase in manpower cost for organizations. Due to the inherent risks, huge expenditure are made ensure data security.
Computer stops responding: At times the operating system of the computer may stop responding or functioning. Though this problem is generally solved by restarting the computer, but sometimes you may have to take the support of the technician.
Viruses: The threat of virus and malware attack always remains in the computerized environment. To cope up with these risks, various anti-virus software are available in the market. If you are using a good antivirus, you are almost sure that your private information and other sensitive data are secured.
Reduction in employment opportunity: The introduction of computers has negatively impacted the employability of computer illiterate people.
Health issues: People often stick to a particular position for long hours working in front of the computer. Bad posture due to constantly looking at the computer screen may lead to neck related health problems such as cervical spondylosis. This may result in health issues such as back pain, and irritation in the eyes.
Less reliance on human memory: People rely too much on the computers. People become careless and tend to forget things faster.
Need uninterrupted supply of electricity: It needs electricity to work. Unless a computer is supported by powerful rechargeable battery, any power breaks may effect the office productivity.
It takes time to learn. The computer systems run on operating systems. Further, customized ERP software are used in large organizations. The employees need to learn about these software before they can start feeding the data independently.
Computer: Computer is an electronic programmable device that works according to instructions gives by User. Computers can understand only binary language i.e. 0,1. Units of computers are very important in order to bring proper control and co-ordination in system.
Computer helps us to save our data, information, our files, photos, videos etc. Computers are today mainly used for storing information, Browsing, Internet activities, Creating presentations, Communication, Exploring world using internet and doing complex calculations. It is to be said that, The computer has been passed through the 5 generations. Each generation of computer brought major changes to the world of computers.
Charles Babbage is a founder and known as father 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.
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.
Learn More:
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