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Comp6
- Cmp6-001 COMPUTER FUNDAMENTALS ─ OVERVIEW
- Cmp6-002 COMPUTER FUNDAMENTALS ─ APPLICATIONS
- Cmp6-003 COMPUTER FUNDAMENTALS ─ GENERATIONS
- Cmp6-004 COMPUTER FUNDAMENTALS ─ TYPES
- Cmp6-005 COMPUTER FUNDAMENTALS ─ COMPONENTS
- Cmp6-006 COMPUTER FUNDAMENTALS ─ CENTRAL PROCESSING UNIT
- Cmp6-007 COMPUTER FUNDAMENTALS ─ INPUT DEVICES
- Cmp6-008 COMPUTER FUNDAMENTALS ─ OUTPUT DEVICES
- Cmp6-009 COMPUTER FUNDAMENTALS ─ MEMORY
- Cmp6-010 COMPUTER FUNDAMENTALS ─ RANDOM ACCESS MEMORY
- Cmp6-011 COMPUTER FUNDAMENTALS ─ READ ONLY MEMORY
- Cmp6-012 COMPUTER FUNDAMENTALS ─ MOTHERBOARD
- Cmp6-013 COMPUTER FUNDAMENTALS ─ MEMORY UNITS
- Cmp6-014 COMPUTER FUNDAMENTALS ─ PORTS
- Cmp6-015 COMPUTER FUNDAMENTALS ─ HARDWARE
- Cmp6-016 COMPUTER FUNDAMENTALS ─ SOFTWARE
- Cmp6-017 COMPUTER FUNDAMENTALS ─ NUMBER SYSTEM
- Cmp6-018 COMPUTER FUNDAMENTALS ─ NUMBER CONVERSION
- Cmp6-019 COMPUTER FUNDAMENTALS ─ DATA AND INFORMATION
- Cmp6-020 COMPUTER FUNDAMENTALS ─ NETWORKING
- Cmp6-021 COMPUTER FUNDAMENTALS ─ OPERATING SYSTEM
- Cmp6-022 COMPUTER FUNDAMENTALS ─ INTERNET AND INTRANET
- Cmp6-023 COMPUTER FUNDAMENTALS ─ HOW TO BUY A COMPUTER?
- Cmp6-024 COMPUTER FUNDAMENTALS ─ AVAILABLE COURSES
Cmp6-001 COMPUTER FUNDAMENTALS ─ OVERVIEW
Today’s world is an information-rich world and it has become a necessity for everyone to know about computers. A computer is an electronic data processing device, which accepts and stores data input, processes the data input, and generates the output in a required format.
The purpose of this tutorial is to introduce you to Computers and its fundamentals.
Functionalities of a Computer
If we look at it in a very broad sense, any digital computer carries out the following five functions:
Step 1 – Takes data as input.
Step 2 – Stores the data/instructions in its memory and uses them as required.
Step 3 – Processes the data and converts it into useful information.
Step 4 – Generates the output.
Step 5 – Controls all the above four steps.
Advantages of Computers
Following are certain advantages of computers.
High Speed
- Computer is a very fast device.
- It is capable of performing calculation of very large amount of data.
- The computer has units of speed in microsecond, nanosecond, and even the picosecond.
It can perform millions of calculations in a few seconds as compared to man who will spend many months to perform the same task.
Accuracy
- In addition to being very fast, computers are very accurate.
- The calculations are 100% error free.
- Computers perform all jobs with 100% accuracy provided that the input is correct.
Storage Capability
- Memory is a very important characteristic of computers.
- A computer has much more storage capacity than human beings.
- It can store large amount of data.
- It can store any type of data such as images, videos, text, audio, etc.
Diligence
- Unlike human beings, a computer is free from monotony, tiredness, and lack of concentration.
- It can work continuously without any error and boredom.
- It can perform repeated tasks with the same speed and accuracy.
Versatility
- A computer is a very versatile machine.
- A computer is very flexible in performing the jobs to be done.
- This machine can be used to solve the problems related to various fields.
- At one instance, it may be solving a complex scientific problem and the very next moment it may be playing a card game.
Reliability
- A computer is a reliable machine.
- Modern electronic components have long lives.
- Computers are designed to make maintenance easy.
Automation
- Computer is an automatic machine.
- Automation is the ability to perform a given task automatically. Once the computer receives a program i.e., the program is stored in the computer memory, then the program and instruction can control the program execution without human interaction.
Reduction in Paper Work and Cost
- The use of computers for data processing in an organization leads to reduction in paper work and results in speeding up the process.
- As data in electronic files can be retrieved as and when required, the problem of maintenance of large number of paper files gets reduced.
- Though the initial investment for installing a computer is high, it substantially reduces the cost of each of its transaction.
Disadvantages of Computers
Following are certain disadvantages of computers.
No I.Q.
- A computer is a machine that has no intelligence to perform any task.
- Each instruction has to be given to the computer.
- A computer cannot take any decision on its own.
Dependency
- It functions as per the user’s instruction, thus it is fully dependent on humans.
Environment
- The operating environment of the computer should be dust free and suitable.
No Feeling
- Computers have no feelings or emotions.
- It cannot make judgment based on feeling, taste, experience, and knowledge unlike humans.