Introduction to Computer
Computers are the machines that can perform tasks or calculations according to set of instructions or programs. The term computer is derived from the word compute which means to calculate. Computer is an electronic device that can perform arithmetic and logical calculations faster. The first fully computer is introduced in 1940s, were huge machines that required teams of people to operate. Compared to those early machines, today's computers are not only thousand times faster, they can fit on your desk, lap, even we can carry it from one place to another. You must appreciate the impact of computers in our day-to-day life. The computer has been us in reservation of tickets in Airlines and Railways, payment of telephone and electricity bills, deposits, etc.
Advantages of Computer
Weaknesses of a Computer
- Computers are machines hence, they have no brain so they work according to the program instructions given by the user.
- It is an electronic device and it uses electrical sources to work. So, it is very risky to store data and information on the computer independently because some electrical damages may damage the data. So, we have to make regular backup of the data.
- Computers require dustless and temperature maintained environment for best performance.
- If a computer commits an error once and a similar situation occurs again, the computer will commit the same error again. It cannot learn from its past experiences. Unlike human beings, a computer cannot learn from its past experiences.