Introduction
A desktop computer is an intricate system comprised of various interconnected components. Some parts can directly plug into the motherboard, while others necessitate the use of cables for connectivity. These cables come in a variety of types, including HDMI, VGA, DVI, Ethernet, PS/2, 3.5mm audio, USB, and power cords. However, finding a single source that provides comprehensive information about these cables and highlights their key distinctions can be challenging. That’s why we’ve compiled this overview of the most common computer cable types you’ll come across when dealing with computers.
VGA Cable
One prevalent computer cable type is the VGA (Video Graphics Ray) cable, which facilitates the connection between the computer’s monitor and CPU. VGA cables can also be utilized with high-definition televisions. These cables transmit all the information displayed on the screen. The plug-in cable is equipped with 15 pins divided into three rows of five pins each. To connect, simply insert one end into the monitor and fix the other end to the CPU.
DVI Cable
Another commonly used computer cable is the DVI (Digital Visual Interface) cable, serving the same purpose as VGA cables—connecting the computer’s monitor and CPU. Like VGA cables, DVI cables can also be used with high-definition televisions. These cables transmit the entire on-screen information as well. The plug-in cable comprises 15 pins, arranged in three rows of five pins each. Connecting the cable is as simple as inserting it into the monitor and attaching the other end to the CPU.
HDMI Cable
HDMI (High Definition Media Interface) cables are designed to convey high-definition audio and video signals. With an HDMI cable, you can effortlessly transmit audio and video signals without compromising picture quality, resulting in crystal-clear images. These cables are employed to connect various electronic devices like cable boxes, TVs, DVD players, and media streamers. An HDMI cable offers a standardized solution for linking all types of audiovisual equipment. Furthermore, it can transmit both audio and video signals simultaneously.
PS/2 Cable
For connecting a mouse and keyboard to a computer, the PS/2 cable is the industry standard. This cable is long enough to facilitate easy connections between the user and the system. With a circular connector, the PS/2 cable possesses a total of six pins. While the smaller size is the most commonly used, adapters can be employed to convert it to the larger size. However, USB cables have largely replaced PS/2 cables due to their universality and compatibility with any system.
Ethernet Cable
Ethernet cables are extensively utilized in wired computer networks. They serve as the means to connect switches, monitors, and computers to a Local Area Network (LAN). The quality of the connection is determined by the cable’s length and strength, as poor signal quality can result from using excessively long or fragile cables. Consequently, the market offers various types of Ethernet cables to cater to different requirements. These cables are connected to the motherboard’s Ethernet port and typically resemble telephone cables, but with more wires. An Ethernet cable consists of eight wires and can be found in multiple colors.
3.5mm Audio Cable
The 3.5mm audio cable is extensively used in computer audio applications, featuring a diameter of 3.5mm. It serves as the link between multimedia speakers and devices such as mini stereo systems, PC sound cards, and portable CD players. Additionally, this cable allows you to connect headphones to your system.
One end of the cable should be connected to computer speakers, 3.5mm headphones, or a 3.5mm microphone. The other end is connected to the computer’s audio ports (as shown in the image below):
- The green audio port is utilized for computer speakers or headphones.
- The pink audio connector corresponds to the microphone.
- MP3 players, CD players, DVD players, turntables, electric guitars, and devices with blue audio ports (line-in port for playing and recording sounds from the aforementioned devices).
USB Cable
A USB (Universal Serial Bus) cable serves as a standard connection medium for multifunction devices and computers. Its primary function is to facilitate short-distance digital communication and data transfer. USB cables are commonly employed for charging devices like smartphones, Bluetooth speakers, and trimmers. Additionally, USB cables can be employed for direct device-to-device connections.
USB cables are connected to a computer system’s USB port, with both mice and keyboards relying on USB connections as well. Disconnecting a USB cable while a device is running can potentially cause damage. Therefore, it is crucial to always safely unplug the USB cable before removal.
Thunderbolt/USB-C
Thunderbolt cables, often found in laptops and Apple Macs, are high-speed connectors capable of transmitting data, video, and other forms of information. The older Thunderbolt 2 version visually resembles Mini Display ports, making them easily confused due to their identical appearance, with the only visual distinction being the side image close to the gate. Thunderbolt 2, indicated by a lightning bolt icon, serves as a data and video transmission interface, while Mini Display Port solely transmits video. Thunderbolt is the final computer cable type on our list of commonly encountered options.
Additionally, Thunderbolt 3 is also recognized as USB-C on Apple Macs.
Conclusion
Computer cables play a crucial role in connecting various devices to a computer system, enabling a wide array of tasks. These cables facilitate the seamless transmission of digital and analog signals. Some cables, such as USB cables, also have the capability to transmit power. By utilizing computer cables, you can enjoy activities like watching movies, gaming, listening to music, and much more. Moreover, Ethernet cables allow for internet connectivity. In this article, we have introduced the eight most common computer cable types. Each type has its own advantages and can be utilized for a variety of purposes. Thanks to the standardized nature of computer cables, they can be employed across different systems. Remember, a cable’s performance is determined by its size and durability.
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