1-2 Basic Configuration of a Network

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1-2 Basic Configuration of a Network

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1 - 2 Basic Configuration of a Network

In a system like an OLTP system, the basic configuration of the network when the host computer at the center is used from a remote terminal is as described below. Data communication can be broadly divided into the data transmission system that is used for transmitting data and the data processing system that is used for processing the received data.

Network path from a terminal through DCE and CCU to the host, including data-processing and data-transmission boundaries. Source text: Figure 5-1 Basic configuration of a network — p. 291 · Enlarge

(1) DTE (Data Terminal Equipment) This is the collective term for the terminal and host computer that constitute the data processing system.

Original Basic Configuration of a Network source table or explanation box, preserving its complete original arrangement, labels and values. Source text: • CCU (Communication Control Unit) This is a unit to perform serial-parallel conversion (assembling/disassembling characters) of data during transmission, error control of data, and control of several lines. This unit isn't used as an independent device nowadays, but the function is implemented by a server or a FEP. • PBX (Private Branch eXchange) — p. 291 · Enlarge

Communication Control Unit · 1 practice questions

p. 292

(2) Communication line This is a physical transmission path for actually transmitting data.

(3) DCE (Data Circuit terminating Equipment) This is a collective term for the equipment that is used to connect the data terminal and communication line. It refers to the equipment for converting/transforming a data signal to be transmitted into a signal that is suitable for transmission.