Computer Fundamentals
What is computer
What is computer - Computer is an advanced electronic device that takes raw data as input from the user and processes it under the control of set of instructions (called program), gives the result (output), and saves it for the future use. Today's world is an information-rich world and it has become a necessity for everyone to know about computers. Purpose of this tutorial is to introduce you about computer and its fundamentals.
Functionalities of a computer
Any digital computer carries out five functions in gross terms:
⚫ Takes data as input.
1. Stores the data/instructions in its memory and use them when required.
2. Processes the data and converts it into useful information.
3. Generates the output
4. Controls all the above four steps,
Definition
Computer is an electronic data processing device which
1. accepts and stores data input,
processes the data input, and
Generates the output in a required format.
Advantages Following
list demonstrates the advantages of computers in today's arena.
1) High Speed
1. Computer is a very fast device.
2. It is capable of performing calculation of very large amount of data.
3. The computer has units of speed in microsecond, nanosecond, and even the picoseconds.
4. It can perform millions of calculations in a few seconds as compared to man who will
5. spend many months for doing the same task.
2) Accuracy
1. In addition to being very fast, computers are very accurate.
2. The calculations are 100% error free.
3. Computers perform all jobs with 100% accuracy provided that correct input has been given.
3) Storage Capability
1. Memory is a very important characteristic of computers.
2. A computer has much more storage capacity than human beings.
3. It can store large amount of data.
4. It can store any type of data such as images, videos, text, audio and many others.
4) Diligence
1. It can work continuously without any error and boredom.
2. It can do repeated work with same speed and accuracy
5) Versatility
1. A computer is a very versatile machine
2. A computer is very flexible in performing the jobs to be done.
3. This machine can be used to solve the problems related to various fields.
4. At one instance, it may be solving a complex scientific problem and the very next moment it may be playing a card game
6) Reliability
1. A computer is a reliable machine.
2. Modern electronic components have long lives.
3. Computers are designed to make maintenance easy.
7) Automation
1. Computer is an automatic machine.
2. Automation means ability to perform the given task automatically.
3. once a program is given to computer i.e., stored in computer memory, instruction can control the program execution without human interaction.
Disadvantages
Following list demonstrates the disadvantages of computers in today's arena
1) No LQ
A computer is a machine that has no intelligence to perform any task. Each instruction has to be given to computer.
A computer cannot take any decision on its own.
2) Dependency
It functions as per a user's instruction, so it is fully dependent on human bein
3) Environment
The operating environment of computer should be dust free and suitable. 4) No Feeling
Computers have no feelings or emotions.
Author
I hope you enjoy reading this blog, The information given in this blog has been written by me, I hope that all the information given in this blog is useful for you and you will enjoy reading this blog.
