What is a global positioning system (GPS)?

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 in 1994 and has the ability to carry out

How the router works

The concept and basic composition of a router A router is a computer device used for network interconnection. It works at the third layer (network layer) of the OSI reference model, and it searches and stores and forwards messages between different networks.
As a

Frequency multiplier circuit diagram

Frequency multiplier circuit diagram

Wind Turbine For Home, Connect Wind Turbine to Grid Tie Inverter , Off Grid Wind Turbine Kit, Residential Wind Turbin

Photoelectric target structure

Photoelectric target structure

The photoelectric target is very thin. In the vacuum glass tube, the side of the photoelectric target facing the scene is a signal board. It is a layer of transparent metal conductive layer sprayed on the glass board. It has the c

Getting started with bridges and switches

Getting started with bridges and switches

Bridges and switches are both data communication equipment and work at the second layer of the OSI reference model, so they are generally referred to as data link layer equipment. They were first used in the 1980s and were

AR1000 Application Circuit (Touch Controller)

AR1000 application circuit

The mTouch â„¢ AR1000 Series ResisTIve Touch Screen Controller is a complete, easy to integrate, cost effecTIve and universal touch screen controller chip soluTIon.

The AR1000 Series is designed for high volume, small form

Image subsampling

Image subsampling

When sampling color TV images, two sampling methods can be used. One is to use the same sampling frequency to sample the brightness signal and color di

Router network interface analysis

Router network interface analysis

Router # show interface e0 / 0
Ethernet0 / 0 is up, line protocol is down
Hardware is AmdP2, address is 0009.4375.5e20 (bia 0009.4375.5e20)
Internet address is 192.168.1.53/24
MTU 1500 bytes, BW 10000 Kbit,

Use D-Link AirPlus G Wireless Ut

The configuration process of using D-Link AirPlus G Wireless UTIlity to access 802.1x + PEAP (TLS)

First open the D-Link AirPlus G Wireless UTIlity wireless network card management software that comes with D-LINK (hardware corresponding model

Layer 3 switching technology

Layer 3 switching technology

1. introduction

In today's network construction, the newly emerged Layer 3 switch has become our first choice. It is recognized and praised by users for its efficient performance and excellent cost performance. At presen

Overview of the bridge

Introduction of the bridge

Bridge is like a smart repeater. The repeater receives signals from one network cable, amplifies them, and sends them to the next cable. They do this for no purpose and don't care about the content of the messages they forward. In

Operator's PWLAN roaming solution analysis

Operator's PWLAN roaming solution analysis

Abstract: This paper analyzes the current status of PWLAN roaming development, points out the main problems that PWLAN's "free" feature brings to b