Development of Communication from Time to Time

Today’s communication is very easy. Have relatives or friends who live abroad, just call, text or send messages through social media via cellphones. So easy! Current communication really brings the distant closer.
When viewed in history, the process of communication has become so long as it is today. What is the history of communication from ancient times to the present? Check out the following review:

Smoke Signal

In ancient times, before there were cellphones and the internet like now, it turns out humans communicate through smoke signals. Smoke signals are the oldest method of communication, which was first used in 200 BC (BC).
The smoke signal was first used to send messages on the Great Wall of China. Then in 150 BC, Polybius, a Greek historian found a way to use smoke signals according to the alphabet. It’s pretty cool, without a cellphone you can still communicate with each other.


Pigeons

In the 12th century, Sultan Nur-ed-din of Aleppo first used doves to carry messages. This dove can be used to send messages remotely, from Egypt to Iraq. Not only stopped at that time, pigeons were also used during World War I & II.
Telegraph

Telegraph

Telegraph is the first communication device that uses electrical signals. The way it works is by sending an electrical signal through a cable which is then translated into a message. In 1844, Samuel Morse first sent a message by telegraph, from Washington D.C to Baltimore Maryland.
Telegraphs are no longer used in the 21st century, but today’s communication tools are the beginning of the tools we use today, such as telephones, fax machines and the internet.
Cable Telephone

Before the time of the cellphone, there was a time for cable telephone or landline. Most homes began to have phones in the 1950s, and one person could only make one call at a time. Cable telephone certainly cannot be carried anywhere, so it is not practical to use. Wow, what does it feel like, living at that time?
Mobile Phone (Cellphone)

Mobile phones were first discovered by Martin Cooper, in 1973. The first mobile phone weighed two kilograms, not as light and thin as we have today. Years passed, and mobile phones were increasingly sophisticated. One of the breakthroughs from mobile phones was the SMS (Short Messaging System) which was first sent in 1992. Today’s cellphones not only can call and send short messages, but also can access the internet, watch movies, take pictures, and more.
Even so, the development of communication tools is inseparable from the development of supporting networks. When the network is interrupted, all the advanced facilities available on the cellphone cannot be used optimally.
Because of that, network service providers also continue to improve. For example Telkomsel, which now has an Integrated Operation Center (IOC) in Telkomsel Smart Office in Jakarta.

Technology that is supported by three operating functions namely Network Operation Center (NOC), IT Operation Center (ITOC) and Customer Care Command Center (C4) is what monitors the flow of voice, Read More

Today’s communication is very easy. Have relatives or friends who live abroad, just call, text or send messages through social media via cellphones. So easy! Current communication really brings the distant closer.
When viewed in history, the process of communication has become so long as it is today. What is the history of communication from ancient times to the present? Check out the following review:

Smoke Signal

In ancient times, before there were cellphones and the internet like now, it turns out humans communicate through smoke signals. Smoke signals are the oldest method of communication, which was first used in 200 BC (BC).
The smoke signal was first used to send messages on the Great Wall of China. Then in 150 BC, Polybius, a Greek historian found a way to use smoke signals according to the alphabet. It’s pretty cool, without a cellphone you can still communicate with each other.


Pigeons

In the 12th century, Sultan Nur-ed-din of Aleppo first used doves to carry messages. This dove can be used to send messages remotely, from Egypt to Iraq. Not only stopped at that time, pigeons were also used during World War I & II.
Telegraph

Telegraph

Telegraph is the first communication device that uses electrical signals. The way it works is by sending an electrical signal through a cable which is then translated into a message. In 1844, Samuel Morse first sent a message by telegraph, from Washington D.C to Baltimore Maryland.
Telegraphs are no longer used in the 21st century, but today’s communication tools are the beginning of the tools we use today, such as telephones, fax machines and the internet.
Cable Telephone

Before the time of the cellphone, there was a time for cable telephone or landline. Most homes began to have phones in the 1950s, and one person could only make one call at a time. Cable telephone certainly cannot be carried anywhere, so it is not practical to use. Wow, what does it feel like, living at that time?
Mobile Phone (Cellphone)

Mobile phones were first discovered by Martin Cooper, in 1973. The first mobile phone weighed two kilograms, not as light and thin as we have today. Years passed, and mobile phones were increasingly sophisticated. One of the breakthroughs from mobile phones was the SMS (Short Messaging System) which was first sent in 1992. Today’s cellphones not only can call and send short messages, but also can access the internet, watch movies, take pictures, and more.
Even so, the development of communication tools is inseparable from the development of supporting networks. When the network is interrupted, all the advanced facilities available on the cellphone cannot be used optimally.
Because of that, network service providers also continue to improve. For example Telkomsel, which now has an Integrated Operation Center (IOC) in Telkomsel Smart Office in Jakarta.

Technology that is supported by three operating functions namely Network Operation Center (NOC), IT Operation Center (ITOC) and Customer Care Command Center (C4) is what monitors the flow of voice, Read More

Progress Of Agricultural Technology Now

Current technological developments have shown remarkable progress. Many things from the life sector have used the existence of the technology itself. Its presence has had a considerable impact on the lives of humanity in various aspects and dimensions. Likewise with communication technology which is a hardware device in an organizational structure that contains social values ​​that allow individuals to collect, process and exchange information (according to Rogers, 1986). Such a situation, where a technology is able to change something that cannot necessarily be done becomes a reality. For example, if people were not able to talk to other people who were somewhere far away, then after a telephone, people can talk without limits and time.

From here, initially with the discovery of a variety of simple devices, ranging from telephones, which are analog-based, advanced and continue to grow until various other electronic devices appear. Until finally this technology integrates with each other. The existing communication technology is an answer to the times. This happens because the more developed a human civilization is, the technology will continue to develop to harmonize the pattern of human perception itself.


For this reason in this paper, the author tries to reveal about the development of communication technology in the field of education and all matters relating to it.


1. Definition of Communication Technology and Information Technology
According to Rogers, 1986 technology is a hardware device in an organizational structure that contains social values ​​that allow individuals to collect, process and exchange information (quoted from the Communication Technology Development course material, Jamroji S. Sos: p. 1). It can also be said that communication technology is a new invention in the aspect of life where every individual can use, access, and provide all things information to others universally. Meanwhile, according to Ely, 1982 what is meant by Information Technology is to include communication systems such as live broadcast satellites, two-way interactive cables, low-power broadcasts 9low-power broadcasting, and computers (including new personal computers and handheld computers), and television (including video disks and video tape cassettes), (quoted from Communication Technology in the Background Perspective & Development, Zulkarimein Nasution. 1989: p. 5). Between communication technology with information technology itself is actually interrelated. but there is still a side that distinguishes between the two.


2. Development of Communication Technology
At present the need for technology, both information technology and telecommunications is very high from the lower middle class and upper middle class. All individuals are in desperate need of technology to accelerate development or enhance the development of both individual and group development. The development of technology that is currently very fast is communication technology, which presents a wide selection of forms of technology and sophistication.
Read More

How to buy an effective Water Heater for your Home

Selecting a New Water Heater

When purchasing a new water heater there are some things that you should know. For example, you want to take into consideration factors such as:

Types of Water Heaters:

  1. Solar Water Heater: Fairly new technology works either through an active collecting system or a passive collecting system.

An active system works by pumping household water through collectors and back into your home.

A passive collecting system works by allowing warm water to rise and cooler water to sink. They are said not to be as effective as an active system, however they can last much longer.

To install a solar water heater you need to consider the climate you live in, your local building codes, and how much sun is present in your area. Therefor it is best to have a professional solar system contractor install your system.

  1. Tankless Coil and Indirect water heaters: Cold water is heated through a coil. Tankless Coil systems do not require the use of a tank, as Indirect systems do. However, Indirect water heaters can be more energy efficient because they allow the furnace to turn on less frequently.
  1. Tankless or Demand water heaters: Cold water is heated by either a gas or an electric element. They work without the use of a storage tank. They deliver a constant supply of hot water.
  1. Storage Tank water heaters: Hot water is constantly stored in the tank and when the hot water is used cold water then enters the tank to replace the hot water used.
  1. Heat-Pump water heaters: Move heat from one place to another using either gas or electricity.

Fuel type, availability and cost:

  1. Size: when determining which size to purchase for your family, you must consider capacity and frequency of use.

Here are some comparisons:

Solar Systems: Do you have ample space to install solar panels outside of your home ?

Tankless Coil, Indirect, Demand Systems: Tankless Coil, Indirect and Demand water heaters will take up less space than Indirect water heaters which require a storage tank.

Heat Pump Systems: Require at least 1,000 cubic feet (28.3 cubic meters) of air space around the water heater

  1. Energy efficiency: how energy efficient is your heating system?

Here are some comparisons:

For gas and oil water heaters you need to know the unit cost of fuel and then research prices per unit. Tankless or demand water heaters can be 24{dbc703588790622a0b09c17874180ca816e89ebd67040f7fb7bb894c722e40d7}–34{dbc703588790622a0b09c17874180ca816e89ebd67040f7fb7bb894c722e40d7} more energy efficient than conventional storage tank water heaters. Of course for solar heating, the energy savings is substantial however that needs to be estimated along with the potential costs of maintenance and repairs.

  1. Cost: Not only will you need to consider purchasing the actual unit, but you will also need to consider the lifespan of the heater and the price of repairs. A couple of things to consider when comparing costs of installation, maintenance and repairs are:
  • How much hot water do you use?
  • Where is your geographic location?
  • Are there any local incentives for using a particular type
Read More