Basic knowledge of switches
The emergence of many new Client / Server applications and multimedia technologies has led to the traditional shared network far from meeting the requirements, which has promoted the emergence of LAN switches.
1. Definition o…
FAQ of MODEM
1. What is a hard cat? What is a soft cat?
Modem is mainly composed of processor and "data pump" in the core structure. The processor is responsible for the instruction control of the Modem, and the "data pump" is respon…
The repeater (Repeater) works at the physical layer of OSI and is the center of all nodes on the local area network. Its role is to amplify signals, compensate for signal attenuation, and support long-distance communication.
The repeater is a small invention…
The number of LTE users will reach 100 million faster than any previous mobile standard
A new report released by Pyramid Research, a telecommunications research organization under Light Reading CommunicaTIons Network, shows that between 2010 and 2014, the numbe…
With the in…
Wireless LAN:
Wireless local area network (Wireless Local Area Networks; WLAN) is a very convenient data transmission system. It uses radio frequency (Radio Frequency; RF) technology to replace the old-fashio…
Comparison of Layer 3 switches and routers
In order to adapt to the challenges brought about by the deepening of network applications, the network is developing rapidly in both scale and speed. The speed of the local area network has been increased from the ini…
How the firewall works
"Will a hacker get my idea?" That's right, the hacker would like to fly through the cracks in the egg, seeing a trace of light from the system's vulnerability will be tempted! Okay, how to protect your network? Computer …
Hub installation and connection
In the previous article, we introduced the basic knowledge of the hub. This article continues to introduce some other important aspects of the hub, that is, the installation and connection of the hub. We have learned from the…
Differences and connections between switches, routers, hubs, network cards and other network equipment
Network card and router are two kinds of network hardware devices. The network card is the interface device between the network terminal and the network; the …
Global Positioning System
1. What is a global positioning system (GPS)
The Global Positioning System (GlobalPosiTIoningSystem-GPS) was developed by the United States since the 1970s. It took 20 years and cost 20 billion US dollars. It was fully completed i…
