For two to communicate, must identify and locate each other. Although the direction Figure 1 is not real network address, representing the concept of clustering of directions. It uses A or B to identify the network and the sequence of numbers to identify the individual host.
a computer can be connected over a network. In this case, the system must be assigned more than one direction. Each direccionidentificara the connection of the computer to a different network. It is not said that a device has an address but each of the points of connection (or interfaces) of this device has is an address on a network. This will enable other computers to locate the device on a given network. The combination of letters (network address) and number (address of host) create an address for each device connected to the network. Every computer connected to an ICP / IP must be given a unique identifier or an address IP.Esta address, which operates at Layer 3, allows a computer to locate another computer on the network. All computers also have a unique physical address known as MAC address. These are assigned by the manufacturer of the card de4 network inteface. MAC addresses operate at Layer 2 of the OSI model.
CONVERCIO DECIMAL AND BINARY
are many ways to solve a problem. In addition, there are several ways to convert decimal numbers bnarios numbers. One of the methods presented below, however is not unique. The student may find that others are easier. It is a matter of personal preference.
8192 1024 32768 16384 213 32 16 8 4 2 1
2098 512 128 69
When converting a decimal number to binary, determine the highest power you can fit in the decimal number. If this process adiseƱado paratrabajar with computers, the most logical starting point values \u200b\u200bare higher than can fit in one or do bytes. Ccomose mentioned earlier, the most common grouping of bits is eight, that make up a byte. However, sometimes the highest value that a byte can hold is not high enough for the required values. To accommodate this circumstance, combine the bytes. Instead of having two numbers eight digits, it creates a single number of 16 bits. Instead of having three three-digit numbers, it creates a number of 24 bits. The same rules apply as to the numbers lamisma eight bits. Multiply the value of the previous position by two to obtain the present value of column.
Similarly, each IP address has two parts. One part identifies the network that connects the system and the second identifies the particular system of the network. As shown in Figure 3, each byte ranging from 0 to 225.
This type of hierarchical address cuz containing different levels. An IP address combines these two identifiers on a single number. This number must be a unique number, because the addresses would make it impossible to repeat enrrutamiento. The first part identifies the address of the rd system. The second part, the prtedel hotst, identifies that particular machine on the network.
0 comments:
Post a Comment