Ways To Clean Computer Scanner

A computer scanner is a type optical device that scans images or text on a document and converts them into digitized images. It is important to know the basic ways on how to clean your scanner in order to maximize its performance and life span.

Here are some basic tips on how to maintain your scanner. First is to switch off your scanner. Second is to open the lid of your scanner. Third is to wipe the glass panel of the scanner using a cloth specially designed for a scanner with a small amount of alcohol. Fourth is to use a separate cloth to clean the outer surface of the scanner like the light bulb if its free from dust. Fifth is to close the lid to the scanner and last would be to do a test drive to make sure that the scanner is working well.
By: Daisy Gamboa

Defining VPN Virtual Private Network

VPN- Virtual Private Network

A VPN utilizes public telecommunications networks to conduct private data communications. Most VPN implementations use the Internet as the public infrastructure and a variety of specialized protocols to support private communications through the Internet.

VPN follows a client and server approach. VPN clients authenticate users, encrypt data, and otherwise manage sessions with VPN servers utilizing a technique called tunneling.

VPN clients and VPN servers are typically used in these three scenarios:

1. to support remote access to an intranet,
2. to support connections between multiple intranets within the same organization, and
3. to join networks between two organizations, forming an extranet.

The main benefit of a VPN is the lower cost needed to support this technology compared to alternatives like traditional leased lines or remote access servers.

VPN users typically interact with simple graphical client programs. These applications support creating tunnels, setting configuration parameters, and connecting to and disconnecting from the VPN server. VPN solutions utilize several different network protocols including PPTP, L2TP, IPsec, and SOCKS.

VPN servers can also connect directly to other VPN servers. A VPN server-to-server connection extends the intranet or extranet to span multiple networks.

Many vendors have developed VPN hardware and software products. Some of these do not interoperate due to the immaturity of some VPN standards.

Related Brands
Cisco Systems
Avaya
Check Point
Watchguard
Vpn Dynamics
Sonicwall
Barracuda Networks
HP Hewlett Packard

Role Of PCBs Printed Circuit Board

PCB means a printed circuit board. It is a connecting board which forms a base for all the electronic components used and connects them in the required order. PCB can also refer to an open source software which is used to design the required electronic circuits and print them in PCB format. There are many other softwares available for the same purpose. Then the PCB is prepared by a process called etching using some chemicals. There are different types of PCBs which are divided according to the materials used, and the presence of trace PCB layers which are bonded together to form smaller PCB. All the electronic components like resistors, capacitors, connectors, switches and other devices are soldered on to this PCB to form a working electronic circuit. PCBs are present in almost any electronic device in the present day. For instance, the motherboard in your computer is a huge PCB connecting all the elements of the circuit.
By: Sandeep Mahanthi

Ways To Clean Computer Scanner

A computer scanner is a type optical device that scans images or text on a document and converts them into digitized images. It is important to know the basic ways on how to clean your scanner in order to maximize its performance and life span.

Here are some basic tips on how to maintain your scanner. First is to switch off your scanner. Second is to open the lid of your scanner. Third is to wipe the glass panel of the scanner using a cloth specially designed for a scanner with a small amount of alcohol. Fourth is to use a separate cloth to clean the outer surface of the scanner like the light bulb if its free from dust. Fifth is to close the lid to the scanner and last would be to do a test drive to make sure that the scanner is working well.
By: Daisy Gamboa

Role Of PCBs Printed Circuit Board

PCB means a printed circuit board. It is a connecting board which forms a base for all the electronic components used and connects them in the required order. PCB can also refer to an open source software which is used to design the required electronic circuits and print them in PCB format. There are many other softwares available for the same purpose. Then the PCB is prepared by a process called etching using some chemicals. There are different types of PCBs which are divided according to the materials used, and the presence of trace PCB layers which are bonded together to form smaller PCB. All the electronic components like resistors, capacitors, connectors, switches and other devices are soldered on to this PCB to form a working electronic circuit. PCBs are present in almost any electronic device in the present day. For instance, the motherboard in your computer is a huge PCB connecting all the elements of the circuit.
By: Sandeep Mahanthi