1. Speed
Computer can calculate at very high speed. It takes only a few seconds for calculations that we take hours to complete. The computer can process more than 50 million instructions in one second. Nowadays, very high- speed computers are available with Pentium IV or Pentium V microprocessor chips.
2. Accuracy
Accuracy refers to the degree of correctness and exactness of operations performed by a computer. The degree of accuracy of the computer is very high, and every calculation is performed with the same accuracy. Errors in hardware can occur, but error detecting and correcting techniques will prevent false results. In most cases, the errors are due to the human factor. If the input data entering the computer are correct and if the program of instructions is reliable, then we expect that the computer will produce accurate output.
3. Diligence
The computer is a machine, not a living being, it never gets tired. Diligence means being constant and earnest in effort and application. Human beings suffer from weakness like tiredness, lack of concentration, etc. Humans have feelings, they become sad, depressed, bored, and negligent, and it will reflect on the work they do. Moreover, human beings cannot perform the same or similar tasks over and over again with the same precision and accuracy as the first time. After some time, people will become bored. This will affect the performance. Being a machine, a computer does not have any of these human weaknesses. They won't get tired or bored. It can work for hours without creating any error. If millions of calculations are to be performed, a computer will perform every calculation with the same accuracy and speed.
4. Versatility
It means the capacity to perform complete different type of work. They can perform activities ranging from simple calculation to performing complex CAD modeling and simulations, satellites, communication and so on. For example, they are capable of performing wide range tasks such as hotel billing, construction of payroll, hospital management, inventory management in a factory, banking sectors and any imaginable task in everyday life. It is as useful in business as in science, education, engineering, music, medicine, art, communication, research, design, space study, and networking. In other words, they are capable of performing almost any tasks. Computers can communicate with other computers and can receive and send data in various forms like text, sound, video, graphics through the development of computer networks, internet, WWW and so on. It has capacity of multitasking. You can enjoy multimedia, word processing, printing, and communicating jobs from one platform without closing the other. This type of facilities has made it versatile and popular.
5. Automation
A Computer is said to be an automatic machine. The biggest advantage of computers is that it is automatic in its operation. Once a programming logic is started, the computer performs repeated operations, without human interventions, until program completion. The computer stores a set of instructions as well as data, and one instruction is enough for the computer to complete tasks without any further instruction. Computers can be programmed to perform a series of complex tasks involving multiple programs. Computers will execute the programs in the correct sequence, provided they are programmed correctly. The computers can start and close the power automatically, process the programs in strict sequence, maintain the records without the interference of human beings.
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