Telecommunications :: Telephone Radio Television Microwave Satellite

The transmission of words, sounds, images, or data in the form of electronic orelectromagnetic signals or impulses. Transmission media involve the telephone(using wire or optical cable), radio, television, microwave, and satellite. Datacommunication, the fastest growing field of telecommunication, is the process of propagateting data in digital form by wire or radio. Digital data fire begenerated directly in a 1/0 binary code by a computer or can be produced from avoice or visual signal by a process called encoding. A data communication theorynetwork is created by interconnecting a large number of information sources sothat data can flow freely among them. The data may consist of a specific item ofinformation, a group of much(prenominal) items, or computer instructions. Examples include anews item, a bank transaction, a mailing address, a letter, a book, a mailinglist, a bank statement, or a computer program. The devices used can be computers,terminals (devices that transmit and receive information), and peripheralequipment such as printers (see Computer Office Systems). The transmission derivationused can be a normal or a specially purchased telephone line called a leased, orprivate, line (see Telephone). It can also take the form of a microwave or acommunications-satellite linkage, or some combination of some(prenominal) of these varioussystems.Hardw ar and SoftwareEach telecommunications device uses hardware, which connects a device to thetransmission line and software, which makes it possible for a device totransmit information through the line.HardwareHardware usually consists of a transmitter and a cable interface, or, if thetelephone is used as a transmission line, a modulator/demodulator, or modem. Atransmitter prepares information for transmission by converting it from a formthat the device uses (such as a clustered or parallel arrangement of electronicbits of information) to a form that the transmission line uses (such as, usually,a serial arra ngement of electronic bits). Most transmitters are an integralelement of the sending device. A cable interface, as the name indicates,connects a device to a cable. It converts the transmitted signals from the formrequired by the device to the form required by the cable. Most cable interfacesare also an integral element of the sending device. A modem converts digitalsignals to and from the modulated form required by the telephone line to thedemodulated form that the device itself requires. Modems transmit data through atelephone line at various speeds, which are measured in bits per second (bps) oras signals per second (baud). Modems can be either integral or external units.An external unit must be connected by cable to the sending device.

Teaching Young Students Essay -- Education, Language, Music

Preschool, kindergarten, and first grade be essential years in childrens life for stoping how to read and understanding the basic fundamentals of language humanities. Some of these concepts include letter recognition, sight word recognition, capitalization, punctuation, and reading fluency. Everything that children learn during these important years go forth follow them the rest of their lives. Reading and writing must start with the very basics of letter identification and then maturate to writing and reading words and sentences. It is important for children to have a positive learning experience because reading is a very important skill that will continually be unavoidable in everyday life. Whole language and balanced literacy are two commonly use methods for teaching language arts to beginning students. There are many activities used to teach young children how to read and relieve including the use of music in the classroom, sight words, games, and worksheets. There are two main approaches to teaching reading to young students. One common approach is whole language. Kate Walsh states that whole language emphasizes connecting children with meaningful text as the like path to developing fluent readers (10). In whole language, using the scope of the sentence to figure out a word is essential. Walsh further explains the importance of context cluing in whole language by describing it as having children identify new words by discerning their meaning in the context of the text (10). another(prenominal) approach to teaching reading is balanced literacy which, unlike whole language, fuses the literature-based approach with some phonological instruction but only on an as needed basis (Walsh, Glaser, Dunne 10). Mixing these two conc... ... the student must understand the difference between an uppercase and lowercase letter and when to use them in different situations. self-employed person exercises are important in the learning process for chi ldren because it makes them feel like they have accomplished something on their own, and they show what the child truly knows.There are many different approaches to teaching language arts to young learners. It is important to understand that every classroom and every child is different. Different activities and methods should be used with different children and different situations. Learning the basics of language arts will follow with children throughout their years of schooling and throughout their life. Learning how to read and write for a young student should be a positive and fun experience. Through different methods, many teachers have made learning fun