The expression "Don't feed the trolls" is a slang term that aims to keep people from communicating with a person who is deliberately trying to incite chaos and cause a disruption when using various online outlets, such as message boards and forums.
A:Although sophisticated spying technology is available for purchase that uses contact microphones and amplifiers to listen through walls, it's also possible to create a listening mechanism using a small drill and plastic wrap. Because of the way the plastic wrap vibrates as sound passes through it, the sound wave travels faster as it goes through the hole, allowing for focused and efficient transmission of the sound.
A:Two-way speakers consist of a woofer and a tweeter, and three-way speakers have a woofer, tweeter and mid-range component. The mid-range component is designed for sounds in the 160 Hz to 5.2 KHz range, such as the sounds of a saxophone, human voice or trumpets.
A:The key advantage of a wireless microphone is that it gives greater freedom of movement. A notable disadvantage of a wireless microphone is that its operation time is limited by battery life. Compared to an ordinary condenser microphone, a wireless microphone runs on batteries that are greatly drained by the transmitting circuitry.
A:The iPod, a digital music player, works by storing audio and video files on a hard drive. A graphical menu system allows users to access and play files. The device integrates with iTunes software on computers to back up files and purchase new media from the iTunes store online. Headphones are needed to hear audio on certain models of iPods, as of 2014.
A:According to Dictionary.com, computer technology is the activity of designing and constructing and programming computers. Computer technology directly correlates with information technology. Computer technology encompasses a developing list of different software programs and devices. Computer technology is also a very popular degree program offered by many colleges; this degree program tends to focus on learning current operating systems, hardware/software training and computer repair.
A:Studying information systems helps find the most efficient way to harvest and store data so it can be easily used. Efficiency in these systems can help solve problems in areas such as logistics or automation, reducing the amount of wasted effort or confusion due to poor information management.
A:Embedded software refers to computer programs that directly interact with hardware. These programs are typically built to perform a specific function or to make the hardware perform in a specific way, and several pieces of embedded software may be built into a single piece of hardware. Embedded software is an integral part of the hardware into which it is built.
A:Automated systems eliminate the need for human interference in order to complete a task. Several industries use automated systems to increase production and reduce costs. A common example is an ATM, which can process banking transactions without a teller.
A:While attending Harvard University, Bill Gates developed a version of the programming language BASIC. Gates' version of BASIC was for MITS Altair, the first microcomputer. He did not write any other programming languages.
A:The process of typing a subscript on a Mac differs depending on the application. Since Microsoft Word is the most widely used word processing application, the process is described for that application. To type a subscript into Word, press the Command button and the "=" keys on your keyboard simultaneously.
A:A word processor is a software application that creates, stores and prints documents. Word processors are categorized as application software created to accomplish specific tasks as needed by the user.
A:The solution depends on the computer's operating system. For example, on a Windows 8 touchscreen laptop, swipe from the right edge of the screen, click Settings, select Power, and then choose Restart. In Windows 7, click the Start button, then the arrow next to Shut Down, and then Restart.
A:A computer's processor is the control center for the computer, and it carries out the computations that allow the computer to function. The circuits in this central processing unit (or CPU) send commands to the other components of the computer to run programs, accept input and produce output.
A:A computer database is a huge compilation of electronic files stored at a single location that is designed and modeled to support processes that require storage and retrieval of relevant information without a lot of work to the user. Computer databases are generally run and managed by specially designed applications known as database management systems software. These management systems allow users to add, edit, manipulate and store data as needed.
A:An optical cable is used to transfer signals using light through thin, flexible glass fibers known as optical fibers. This method of data transmission is extremely fast because light travels faster than anything else in the known universe.
A:Notebook computers are smaller than laptops and usually weigh less than 6 pounds whereas laptops weigh up to 18 pounds. Laptops also typically have more functionality, including desktop accessories like DVD drives.
A:Though largely defined by the quality and size of the photos in question, an 8GB memory card is capable of holding up to 1,000 24-megapixel photos. Fewer pixels require less data, and thus more can be stored on a memory card.
A:There are two main functionality differences between RAM and flash memory: RAM is volatile and flash memory is non-volatile, and RAM is much faster than flash memory. RAM stands for Random Access Memory.
A:The main difference between SD memory cards and XD memory cards pertains to capacity and speed. Generally, SD memory cards have a greater capacity and faster speed than XD memory cards, according to Photo Technique.
A:An optical disc drive, or simply optical drive, is a piece of computer hardware that alters data on optical discs using lasers. Optical drives edit, delete and add content to CDs, DVDs and Blu-ray discs in computers and entertainment electronics. Optical drives are useless without optical discs, which typically are round, lightweight pieces of hardware with small grooves on the shiny side of the disc.
A:A hard disk's actuator is the electronic device that moves the actuator arm across the hard disk's platter, and it works hand in hand with other components to locate, write, read or delete information. The actuator assembly operates similarly to how a record player plays a vinyl record.