How is Data Transmitted Through a Wire to a Server?

Answer The easiest way to describe it is data is sent in a series of pulses.Bit like morse code is transmitted although that is at one set frequency.Data is sent with multiple frequencies.It's easier to h... Read More »

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How can I protect data transmitted over a network by the use of firewalls and password cards (encryption)?

What's a password card?A firewall prevents access into a network apart from those to approved machines and port numbers. No encryption is involved.Encryption prevents a 'man-in-the middle' eavesdro... Read More »

How real is online data entry job I have read about making money from home through internet data entry jobs.?

My guess is that if a prospective 'employer' demands money from you then it's a scam.

What Is a Data Warehouse Server?

In computing, a data warehouse is the main repository of all significant data collected by various business divisions and departments of an enterprise. A data warehouse server is the physical stora... Read More »

What is the speed with which electric power is transmitted through the power grid Believe it or not, the education center at an important nuclear power plant claims that "electrons travel at the speed of light," an obvious impossibility for current i?

Amazingly enough, the speed at which electric power travels through a wire is very different from the speed at which electrons move through that wire. In most wires, electric power travels at very ... Read More »