THE USES AND ABUSES OF SATELLITE CHANNELS

THE USES AND ABUSES OF SATELLITE CHANNELS

Our age is an age of science. The gifts of science are uncountable. Wherever we cast our eyes,we see the wonders of science. Satellite T. V. channels are worth mentioning among the wonders of modern sciencsSatellite t. v. channels are the means of modern communication.It is a system through which we can see and hear the events that are happening all over the world sitting in our houses.It has made the segregated world united and interrelated. The whole world communities have come closer and smaller through the Satellite Channels. Dish antenna has helped to catch the programmes and receive from various T. V. channels.

There are a lot of  Satellite T. V. channels in the world. Of these B.B.C. Star plus, Star S[orts, CNN, Star Movies, Zee Cinema, ATN, DDI, DD7, NTV, ETV, etc. are mentionable.Satellote channels have removed monotony of watching fixed items of programmes. They have provided people with opportunities of watching diverse programmes on numerous channels. In fact, today we have specilised satellite channels on almost  every interest. 

There are some channels which broadcast only show cinemas. Some channels show games and sports only, some channels show only show  cinemas. Some channels show games and sports only, some channels show only the discoveries and inventions of science and technology and again some channels are dedicated for travelling animal world. Actually, people now have more choices and more freedom about television programmes.Satellite Channels help  us a lot by reporting on climatic conditions of different parts of the world. In this way, we can be aware of storms, cylcones and tidal bores.Satellite TV Channels of other countries help us to learn and develop the latest technologies and systems of making films, dramas etc. 

Thus Satellite Channels are helping to a great extent to enrich our own culture and tradition.Though Satellite  Channels are playing a favourable role, it is also doing harm to our young and new generation. They are showing vulgar and obscene films and causing a harmful effect on the mind, behavior and attitude of our young generations. Our own culture is facing thw threat of cultural aggression of alien culture.But still we can not deny the immense benefits we are getting from Satellite Channels.

 

Computer Type

Application
 

There are a lot of used computers | room to work in the business, scientific, etc. The end use of the | above all, it brings us to the unique Revolution | Medical and manabakalyaneo This is a unique companion | one of them on a machine that can do all the work.

Computer Type
 

Bisect the computer can be based on the difference.
 Common usage of computers.
 The usage of computers.
The computer is based on the structure and policy of the circulation can be divided into three sections.
   

Analog computer.
Digital computer.
Hybrid computer.
 

The size, capacity, cost, and the importance of using a digital computer can be divided into four parts.
 

Mainframe computer.
 Mini-computer.
  Micro-computer.
 Super computer.
Analog computer

The computer is a relative measure of the amount rasike another, so the analog computer. This is the change in temperature or other measurements that can be recorded. Motor vehicle speed detection device, analog computer, a better example.
 The digital computer

The number of computers to solve problems through the use of the digital computer. This process can add and subtract any math, like multiplication and division to perform other operations on the list. The reasons

Hybrid Computers

 

Hybrid analog and digital computer is a machine that consists of your best features. It is used in scientific research. So that, from the analog and digital computer technology and the basal part of the hybrid computer samanbayai.
Mainframe computer

Mainframe computer is a computer with a large number of small computers can be connected to the one with a lot of work. Complex scientific research, higher technical analysis, artistic behavior is useful for large organizations. Dhaka University, Bangladesh Atomic Energy Commission in the statistical section and the use of the computer -.
[Edit] Mini Computer

The one with the computer terminal at about half a hundred mini-computer, so the user can use. It's art - the use of the trade and research. As - / 9290. For example, it
Micro-computer

Micro-computer to personal computer or PC is also described. Interface chip, a Microprocessor cpu and ram, rom is made with a micro-computer. The use of computers in everyday life count. Myakinatosa IBM PC type computers.
 Super Computer

Very powerful and super computers and computer-heeled. In computer speed is about 1 billion characters per second. The world's weather, or a large country such as census data, a computer byabashapana Memories are like the super computer. CRAY 1, supers xll of the computer.

Technology used teliyogayoge

Technology used teliyogayoge

Example of the broadcasts. In this case, the broadcast tower is the transmitter, receiver and radio are the media space. In many cases, the telecommunications facility and the same instrument transmitter and the receiver ubhamukhi maintain contact as. These are called transceiver. For example, a mobile phone transceiver

Teliyogayogake the phone point - to - point communication, the transmitter and receiver in the case of a connection being established. Teliyoyayogake is broadcast via radio broadcast (broadcast) communications, as in the case of a powerful transmitter and numerous receivers that are happening in the connection.

Analog and digital signal of two types can be. Paribaratanera analog signal based on the information in the signal strength is constantly changing. Digital signal their information to certain values ​​(eg, 0 and 1) is a combination of the signal becomes.

Connected with each other in a group of transmitters, receivers, or transibharera comprising the network. This is a digital network or router, which is sent to a specific babaharakarira. Network in which one or more of the analog switch connection between two or atodhika babaharakarira. Two types of network in the wilds of the weak analog signal is required to send ripitara siganalake empaliphai the powerful and corrupt digital siganalake be recast. Any unwanted sound that can not be distorted, so the system is siganalake.

 

One such channel is through the media, which can be sent at the same time more than one data flow. For example, a 96 MHz radio-wave radio stations, radio stations and another at 94.5 MHz of radio wave can be transmitted. The media has been divided according to frequency or frequency, and a radio station broadcasting on a frequency for a given set. In broadcasting, a channel without having to set a specific time length can be specified.

Archaic communication system

With any of the people away from archaic abasthanakari smoke signals to communicate with the drummer now playing them. Africa, New Guinea and South America are now playing with the local tribal drummer would. Chyna  and  North American people away from smoke signals to send the news. 

Dholera noise or smoke, which announced an addition to the presence of groups of signals were carried by other findings.179 in sape Claude (Claude Chappe) telegraph instrument in the name of a French engineer of the first aspect that creates a connection between Lil and Paris. The method used semaphora. Semaphora way through two different locations with different letters indicating the flag signal is sent. After the first connection is established from the Paris of the Lil strasaburga is extended. In 1794, a Swedish engineer 

Abraham edelakrantaja Unlike the technology used to connect the dratinhoma from Stockholm. The facility was ghaorara sape machine pulley over the plank. The device is only used light shutter krantaja hand because of the higher speed. However, the methods used semaphora was impossible to communicate without an experienced person. Also, a short distance (10-30 km) should build a huge tower in 1880 due to the cost of a full service Commercial and closed.

Micro Processors

Microprocessors

A microprocessor incorporates the functions of a computer's central processing unit (CPU) on a single integrated circuit,or at most a few integrated circuits. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and provides results as output. It is an example of sequential digital logic, as it has internal memory. Microprocessors operate on numbers and symbols represented in the binary numeral system

A microprocessor is a highly complex integrated circuit that contains a large number of logic gates. The gates are organized into various specialized subcircuits for receiving, processing, storing, and relaying data (information) in the form of digital signals. Such logic circuits can be programmed to work with the data in predetermined ways, serving as a computer's central processing unit.

All but the simplest electronic products are made up of a combination of circuits, each designed to perform a specific function. The same basic circuit can be used in a wide variety of products; for example, the power-supply circuit of an audio amplifier is essentially the same as that of a personal computer. Some circuits are designed as self-contained devices, forming units that can be easily interconnected in assembling an electronic product and easily replaced if they become defective.

In conventional circuits, the active and passive components are individual parts that are connected by wires.

The connections are greatly simplified in a printed circuit, a circuit in which the components are All but the simplest electronic products are made up of a combination of circuits, each designed to perform a specific function. The same basic circuit can be used in a wide variety of products; for example, the power-supply circuit of an audio amplifier is essentially the same as that of a personal computer. Some circuits are designed as self-contained devices, forming units that can be easily interconnected in assembling an electronic product and easily replaced if they become defective.In conventional circuits, the active and passive components are individual parts that are connected by wires. mounted on a stiff board and connected by strips of metal deposited on the board by a printing process. In integrated circuits, all the various components of the circuit are formed on a single chip of silicon or other semiconductor

Most complex electronic circuits today are built as integrated circuits.

Integrated circuits are very small—their individual components are typically microscopic in size. The entire circuit is generally no more than 1/16 of an inch (1.6 mm) square. Integrated circuits are highly reliable and, compared with the components they replace, inexpensive

Their use reduces the overall size of electronic equipment and helps in designing electronic products as systems made up of separate units, each performing a distinct operation. This construction simplifies manufacturing and maintenance procedures.