Understanding of Computer Networks

With the development of computer and communications technology certainly raises some sense. For example, a single computer model that serves all computing tasks an organization has now been replaced with a set of computers that would separate but interconnected in performing their duties, such systems is understanding of computer networks.

Understanding of computer networks is to define a set of interconnecting a number of stand-alone computer. Two computers can be said to be interconnected read more

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Classification of Computer Networks

The type – the type of computer networks can be classified as follows:

topology

Network topology is a section that describes the relationship between computers that are built based on usability, resource constraints and cost limitations according to the situation on the ground. The types of network topologies include:

Bus topology

Bus topology is the initial topology is used to connect a computer. In this topology each cable will be connected to a long cable unity with multiple terminals, read more

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IP Address

The IP address is the address of the software, not the hardware address. IP addressing is intended to allow the hosts on a network can communicate with a host on a different network, regardless of the type of LAN used by the participating hosts. (Lammle, 2004) As well as the house number, the IP address is the address given to computer networks and network equipment using TCP / IP. IP addresses consist of a 32 bit binary number can be written as four groups of decimal numbers separated by dots read more

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How to Make a Good SEO

Is difficult to make our website easy to spot by search engines , but at least some things below may be considered to optimize web pages , among other things:

Choose the right keywords . This step is very important in SEO . Find popular keywords and words that relate to our business . Then find out the popularity and competition of each keyword. Keywords that are quite popular and a bit of competition to be chosen as a keyword mainstay . There are several SEO tools available on the Inter ¬ read more

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Know Your Computer Power Supply

Computer Power Supply is a device that performs the voltage drop from 220V AC to 12 V DC and 5 V DC and 3.3 V DC in order to be used by the computer to turn on the devices . Voltage of 3.3 V to 5 V DC used for digital circuits , such as the processor and so forth . While the 12 V DC voltage is used as a driver for devices such as CD , DVD and hard drive or fan as well ( if any ) . Power supply capacity is based on watts . Watt is the result of the division of the voltage in volts and the read more

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OSI Reference Model

OSI reference model (Open Systems Interconnection) describes how information from a software application on a computer moves through a network medium to a software application in another computer. OSI reference model is conceptually divided into 7 layers where each layer has a specific network functions, as described by Figure 2.1 (with no physical media). This model was created based on a proposal made by the International Standards Organization (ISO) as a first step towards international read more

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Understanding Topology Bus

Definition of bus topology is a way to connect computers to each other to form a network of computers connected on a bus ( terminal ) in the form of cable . This topology is the initial topology is used to connect a computer . In this topology each computer will be connected to a long cable with a terminal , and at the end of the cable must be terminated with a terminator . That notion is literally on a bus topology .

Bus topology is very rarely used in building a network of ordinary read more

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Java and history

The Java programming language is object-oriented programming language similar to C + + and Smalltalk. Java is neutral, does not depend on a platform, and follow the principle WORA (Write Once and Run Anywhere). Unlike C or C + +, you can write programs in the Java language, compile once enough and can run on various operating systems, such as Windows, Linux, Solaris, Mac OS. Conversely language C + + relies on a platform, because the program requires that we compile on any operating system in read more

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IP Address

The IP address is the address of the software, not the hardware address. IP addressing is intended to allow the hosts on a network can communicate with a host on a different network, regardless of the type of LAN used by the participating hosts. (Lammle, 2004) As well as the house number, the IP address is the address given to computer networks and network equipment using TCP / IP. IP addresses consist of a 32 bit binary number can be written as four groups of decimal numbers separated by dots read more

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Toxin effects of organic materials on occupational health

 Industrial progress than a positive impact as rising incomes and reduced pemgangguran also have negative impacts that must be considered primarily to be a potential threat to the surrounding environment and the workers in the industry. One such industry is the industry of organic materials are methyl alcohol, ethyl alcohol and diol.
Labor as human resources are important assets of the industrial activities, as well as capital and equipment. Therefore, workers must be protected from workplace read more

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