Overview Dynamic domain name, the system is realized by two methods, one is the client, the client needs to configure a 24h computer to run its client software; the other is The device comes with a d...

Definition Terminal refers to the place where information can enter or leave the communication network. It sends information to the network and can also receive information from the network. The cha...

Empty session definition According to the access control model of WIN2000 (take win2000 as an example), the establishment of an empty session also requires a token, but the empty session does not pas...

Basically, digital-to-analog conversion is the opposite of analog-to-digital conversion. In most cases, if the analog-digital converter (ADC) is placed behind the DAC in the communication circuit, th...

FDDI technology was developed before Fast Ethernet technology was developed, which was much higher than the first two speeds at that time, so there was still a certain market at that time. But it was...

MASK ROM: For mass production, the manufacturer makes a ROM or EPROM with original data as a sample in advance, and then mass-produces the same ROM as the sample. This kind of ROM is mass-produced The...

Introduction Datagram packet switching technology means that there must be at least one data transmission path between the two communication parties. These paths may span multiple intermediate nodes...

Overview The so-called integrated wiring system refers to the compilation and layout of various systems in various buildings (or groups of buildings) in a standard, unified and simple structured way....

Basic introduction The TTL level signal is used most often because the data is usually expressed in binary format. +5V is equivalent to logic "1", and 0V is equivalent to logic "0" This is called TT...

Definition A glass substrate is a thin glass sheet with an extremely flat surface. There are three production methods: float, overflow down-drawing, and slit down-drawing. Principle A layer of In2O3...

rubber ballRubber ball is divided into ordinary rubber ball, pinball, silicone rubber ball, and polyurethane rubber ball. Used in food, medicine, minerals, machinery, food metal metallurgy, vibrating...

Velocity Uniform linear motion (5 photos) For objects that do uniform linear motion, in different displacements or time periods, the displacement and The ratio of time is a fixed value, and this fi...

Significance Now, with the improvement of my country's industrial equipment level, the level of lubrication and maintenance needs to be improved urgently. Experts have predicted that about 35% of the...

Complete guide Among the portable memory cards used in MP3/mobile phones/digital cameras/digital camcorders, CF cards and SM cards are familiar to everyone, but when it comes to mmc You may not be f...

Explanation of the thermal switch The thermal switch only needs to be connected to a simple and reliable circuit, and it can be easily used in a variety of applications. The following figure shows t...

The principle of electrostatic adsorption When an object with static electricity is close to another object without static electricity, due to electrostatic induction, the inside of the object witho...