Computer : Computer itself a combination of different type of separate electronic device. i.e. Computer only will be computer if it has INPUT DEVICE, PROCESS UNIT, and OUTPUT DEVICE.
·
Central Processing Unit
(CPU) : It is heart and mind of the computer without this unit computer
unable to process.
·
Keyboard : This is
an input device which is used to input the data into the computer.
·
Mouse : This is
also an input device which is used to input the data into the computer.
·
Monitor : This is
an output device which is used to show the result of the instructions.
Computer Security
·
Virus and worms : These are the
computer programme which malfunction the computer system. Virus requires a
carrier while worms does this by itself. Worm does not requires any carrier.
·
Spoofing : Through this,
deceiving the computer users and making the fool.
·
Intrusion or Hacking : If a computer is
used and controlled by unauthorised users then it is called hacking and who
does this is called hacker. Main purpose of hacking to steal the private data
or alter the actual data.
Computer Concepts - Applications of IECT
IECT
stands for Information Electronics and Communication Technology. The
applications of IECT are as follows −
- E-governance
- Multimedia and Entertainment
E-governance
Electronic
governance is application of Information Electronics and Communication
Technology in running an effective governance system for people. Communication
refers to sharing of information between parties like common people,
government, business, etc. Almost every government sector has changed to IECT
like rail reservation system, gas subsidy disbursal, etc.
Multimedia and Entertainment
Multimedia
refers to combination of text, audio, video, graphics, animation, etc. It is
one of applications of IECT. Multimedia is used to improve quality of
presentation by incorporating information sharing, usage of graphics and
animation, motion capture, etc.
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