A. Introduction
The computer room antistatic technology, is part of a computer room security protection areas. The static electricity generated due to various reasons, occur most frequently, the most difficult to eliminate hazards. Static electricity would not only computer is running a random failure, but also lead to the breakdown and destruction of some components, such as CMOS, MOS circuit, two-stage circuit, etc.. In addition, will affect the operators and maintenance personnel normal work and physical and mental health. Computers in all areas of the national economy, the increasing popularity of applications such as weather forecasting, aviation management, rail transport, postal services, microwave communications, securities operations, fiscal and financial, satellites, missile launch and in-depth heat in these areas are country economies are intertwined, once the computer system in operation failure, in particular, is a big failure will give the name of the country economic zone pull a huge amount of loss caused by the political influence can not be ignored.

Two. Room of the electrostatic protection caused by static electricity is not only the hardware difficult to identify, and sometimes the software people mistakenly believe that a software failure, resulting in confusion. In addition, the discharge of static electricity on the computer or other device through the body (ie, the so-called ignition) when the energy reaches a certain level, will give a feeling of electric shock, causing the operating system for maintenance personnel in the mental burden and affect efficiency. How to prevent static electricity hazards, not only involved in the design of the computer, and have a great relationship with the structure and environmental conditions of the computer room. In the construction and management of computer room, the analysis of static on the computer, to study the failure characteristics to identify the root causes of static electricity, and to develop measures to reduce and eventually eliminate static electricity, always an important issue.

3. Static on the computer influence of static on the computer, mainly reflected in the static semiconductor devices. It can be said semiconductor devices are static sensitive, which is the computer on static sensitive. With the development of the computer industry, the composition of the major components of the computer - semiconductor devices has also been rapid development. Due to the high density of semiconductor devices, high gain, but also to promote a computer high-speed, high-density, high-capacity and miniaturization. At the same time, also led to increasingly sensitive semiconductor devices on the static response. The impact of static on the computer performance of two types. Component damage, is caused by computer malfunction or operator error. Damage to components, the LSI is used only for computer, have a certain influence on the bipolar circuit. Early MOS circuits, when the static charged body (usually a high electrostatic voltage) primary MOS circuit pipe legs, electrostatic charged body of their discharge, so that the breakdown of MOS circuits. In recent years, due to the high density of MOS circuits, the speed low prices, and thus a wide range of applications and development. Most MOS circuits with termination protection circuit, to improve the antistatic protection. Nevertheless, re-use, especially in the repair and replacement, also pay attention to the movie star of the static and high electrostatic voltage still make the MOS circuit breakdown. Malfunction or operator error caused by static electricity, electrostatic charged when Hugh touched a computer, computer discharge, may make the computer logic device input error signal, causing the computer error. In severe cases, but also fed into the computational procedures disorder. In addition, static external device of the computer also has a significant impact. With the cathode ray tube display device, by static interference, it will cause image disorder, fuzzy please. The static electricity will cause the work of the Modem, NIC, Fax disorders, printer alignment ring true failure.

4. Computer-static failure characteristics:
1). Computer due to static electricity caused by the failure characteristics
a. Static failures of the season, mainly in winter and spring dry period, that is static with humidity change.
b. Failure caused by static electricity is sporadic, repeatability is not strong in general is the random failure, therefore, difficult to find out the reason of its induced.
c. Static and computer room floor. Furniture and staff uniforms.
d. The static electricity caused by a computer error actions often occur when the human body or other insulators and computer equipment in contact.

2). Computer failure caused by reasons of electrostatic discharge
a. Current transient flowing through the chassis, the induced noise on signal lines, power lines.
b. Due to static electricity generated by high pressure, causing the chassis to secure the potential changes, which led to the logical potential changes.
c. Radiated noise in the signal due to the contact part of the electromagnetic waves generated by electrostatic discharge