Cables for computers
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Shopping Guide - Cable for Computers
Computers are increasingly present in our daily life. The technology has evolved, featuring several new attractions in the area of IT and aggregating the computer a series of functions and connections to other electronic devices. These connections are made with the use of special cables. And there are a lot of cables, which we must find very good information and features to not buy an incompatible connector. Here are the main information on the types of cables available to assist you at the time of purchase.
How are the nomenclature of connectors?
The connectors, called DB, were developed by the Canon company, and use the letter D as a prefix to name this series of connectors suitable for computer, followed by another letter to indicate the type of wrapper according to the number of pins on the existing connector. Check the classification:
A = 15 pins
B = 25 pins
C = 37 pins
D = 50 pins
E = 9 pins
In addition to these two letters, the nomenclature is made, still, a number that indicates how many contacts there, followed by the letter M (male) or F (female) to represent the gender of the connector. The end where the pin is called the male connector and the other end, which contains the sockets, it is called the female connector. It has become common to call all DB connectors, even if they do not have 25-pin as indicated in the ranking. This information is important in nomenclature so that there is no mistake at the time of purchase. For questions, see the specifications of the product.
What are the types of cables available in the market?
There are several cables, each for a different function. So you need to look very carefully for the product that best meets your needs. Here is a list with some cables and their functions:
Video Cable to VGA Monitor (analog video adapter) – it connects a video card to the monitor. There are long cables to connect monitors far from the computer, however, the long use of this cable may cause a loss of sign, depending on the quality of the monitor and video card.
Cable for Printer - These have DB25M connector to connect the computer to the printer or scanner.
USB Cable - widely used to connect the various devices such as cameras, video cams and phones, allowing the transfer of data to the computer. Today, most phones launched to enable connection to the PC, use the output USB connector instead of DB. Therefore, there are several cables that serve to adapt USB devices at the entrances.
Monitor Cable - the monitor connects to the computer through connectors as HDB15M (High Density) of 15 pins.
Network Cable - used to connect the computer on the local network through connectors RJ45M (Registered Jack).
Force cable - connect the computer to the network through the electrical tripolar plug (called IEC). If in your home there is not an outlet connection with tripolar, you must buy an adapter cable to connect the IEC in the standard plug.
IDE Cable - used to connect HD, CD / DVD and other equipment that have compatible device.
MIDI Cable - allows connection of musical instruments with the computer's sound card.
FireWire Cable - enable the connection of digital devices, such as photographic cameras, video cams and portable computers, peripherals with the same pattern. They function just like the USB cable, differentiating itself in speed of transmission of data, which is much faster with FireWire, ideal for audio and video.
Cable Card for Datashow - connect devices Data Show with HDB15 connector the computer VGA DB15.
What should I evaluate at the time of purchase?
When you choose a cable, check first whether it is compatible with the unit or in connector that will be used. Read the specifications of the product carefully to not occur this kind of problem. Note also in the period of warranty specifications of the product and the length of the cable. If the length is not satisfactory, you can choose to extend cables, which allow a connection to the long distance from the computer. Look for cables that have connectors suitable for the type of connector you want to extend.
