A non-impact printer is a type of printer where the print head does not strike the paper. The three main types of non-impact printers include inkjet, laser and thermal printers.
Laser printers utilize electrical charges and a laser beam to transfer toner particles from a selenium-coated cylindrical drum to a piece of paper. Inkjet printers spray small drops of ink onto the page. Thermal printers use heat to transfer impressions onto paper. There are two different types of thermal printers: direct thermal and thermal wax transfer.
Printers like the daisy wheel and dot matrix printers are referred to as impact printers because they work by striking a print head against an ink ribbon. Non-impact printers are less noisy and more efficient compared to impact printers.Learn More
An optical drive is a storage device that uses laser light or electromagnetic waves, operating in or near the visible light spectrum, to read or write data. CDs, DVDs and Blu-rays are examples of optical discs — the storage medium used by optical drives.Full Answer >
A CLI, or command-line interface, is a way to interact with a computer by typing text commands into a terminal window. A GUI, or graphical user interface, allows a user to interact with a computer by using a keyboard or mouse to manipulate visual elements on the screen.Full Answer >
A system unit is the metal case that houses and protects other computer components, such as the motherboard, hard drive, RAM, graphics card and central processing unit, or CPU, of a computer system.Full Answer >
There are many reasons why a PC unexpectedly shuts down, but the most common reasons involve problems with the power supply. It is possible that the battery is failing to hold a charge, or the charger may be malfunctioning. Another common cause is an overheated CPU. Check to see if there is dust or anything blocking the fans on the bottom of the computer.Full Answer >