Communication Channels / Lines / Links / Carriers / Media
All the telecommunication channels use a variety of different medium to exchange the data on a network. Rate of transfer of data is known as band rate, and it is measured in bits per second.
Categories of Channels
1. Wire / Guided media
2. Wireless / Unguided media
WIRE / GUIDED MEDIA
Wire media (also known as GUIDED MEDIA) is commonly used type around the world.
Computer Programming And Programming Approaches
What Is Program?
A program is a set of instructions written by a programmer. Program contains detailed instructions and complete procedures for performing the relevant tasks.
What Is Programming?
Programming is an art, although we can learn and taught it, but the creativity and problem solving skills is God gifted.
A program has following processing operations in its working:
What is Input?
Input is simply anything which you are entering into a computer. But technically speaking, input is a process by which human enters data which that is readable and then this data is transformed into a form that is machine-readable. The data that is entered into a computer is also referred to as, Input. All the documents from where we get the data which are entered into the computer are known as Source Document.
What are Input devices?
AUTOMATIC DATA ENTRY DEVICES OR AUTOMATIC INPUT DEVICES
Examples of such devices are:
- Magnetic Ink Character Recognition
- Magnetic Strips
- Smart Cards
- Computer Scanners
- Optical Recognition
- Point-Of-Sale Terminal
- Financial Transaction Terminal
- Machine Vision System
1. Magnetic Ink Character Recognition (MICR)
2G and 3G Wireless Technology
In today’s world of communication, 2G and 3G technologies have their own importance and priority. Nowadays even a layman has some knowledge about 2G as it has become so popular because of the current political issues related to 2G spectrum. The "G" here stands for generation, thus 2G and 3G means second and third generation technologies respectively.
Artificial Intelligence (AI)
Artificial Intelligence is one of the hot topics of today’s IT world. The name itself suggests that it is intelligence which is artificially created.
As we all know for human beings intelligence could not be or need not be created artificially, as it is natural. So it is sure that artificial intelligence is for machines but we cannot be specific while defining intelligence. When we consider a human being, the parameters that are considered for defining his intelligence will vary from person to person, that is it is an immeasurable characteristic.
Some awesome Notepad tricks to remember
1. Open an empty Notepad file
2. Write .LOG remember it should be the first line of the file, and then press ENTER. Save the file and exit.
3. Open the saved file and you will notice that Notepad shows the current date and time at the end of the file and places the cursor on the line after.
4. Type your notes, save changes and exit the file.
After you have done that open the file and you will see the changes.
By using this trick you can make your notepad a personal diary.
STAGES / STEPS INVOLVED IN PROGRAMMING
What is Program?
Comparing Cloud Computing – Public, Private, Hybrid and Community Clouds
Comprehending Cloud Computing
Being an internet-based computing, cloud computing by means of which assets distributions, programs, and data are supplied to the computers as well as to the other apparatus on request, for instance, the electrical power grids.
Cloud computing is the natural development of the prevalent acceptance of utility computing, service-oriented structural design and virtualization. The details are taken out from the buyers, who have no more know-how or command required on the expertise structural design in the cloud that carries them.
Everything is fine with your computer, but one fine day you may open your web browser and be puzzled that you are taken to a page, which is not your home page and your PC will run very slowly. You may try to change it with all the computer skills you have, but you won't be able to do it. Then you will reach out for your system tray and open your virus software and run it.
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