Computer and Printer

How It Works

Most of us rely on computers every day - but how do they work? A home computer consists of memory, integrated circuits and a central processing unit to execute instructions and run software for the user. Desktop computers use a separate monitor to view and interact with information and graphics. These screens can use cathode ray tube (CRT - looks like an old TV screen), liquid crystal display (LCD) or light emitting diode (LED) technology. The user typically interacts with the computer through a keyboard and mouse. Notebook and Laptop computers are smaller, portable versions of the desktop computer with the computer, screen, keyboard and mouse contained within a single unit. Computers have ports to enable electronic connection of other devices to enhance performance, computer memory and communications.

What Can Go Wrong?

Computers are susceptible to computer viruses and power line disturbances that can cause disruption of software, loss of data and hardware failure. Computers should always have antivirus software installed, operating and updated. Power surges can damage or even destroy your computer if you don’t have the proper protection. If data is critical or is being used for a home-based business, the computer should be connected through an uninterruptible power supply (UPS) to insure continued operation and proper shutdown during power line disturbances and interruptions.

Environmental Impact

Computers use up to 250 watts (W) while operating and as much as 45 W when in sleep mode. If your desktop computer runs eight hours a day and sleeps the rest of the time, it can consume up to 990 kilowatt-hours (kWh) annually, which results in about 1,500 pounds of carbon dioxide (CO2) per year.


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MyHomeWorks Located at One State Street, Hartford, 06102, CT - Connecticut , . Phone: 855-649-1110. .