Google Earth updates its database completely every one to three years, though some sections update more frequently. Google Maps updates daily, with changes appearing on the app and website within approximately three weeks of the update being made.
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:There are several different types of CD cases. The standard single CD jewel case usually measures 5.59 inches by 4.92 inches by 0.39 inches. Slimline cases usually measure 5.59 inches by 4.92 inches by 0.2 inches.
A:The difference between analog and digital signals is that an analog signal is a continuous electrical message while digital is a series of values that represent information. Analog is conveyed by electrical current variations. Digital signals are relayed as a series of values that a device can read, such as a digital television.
A:Earphones, or headphones, work similarly to speakers in that they turn electrical energy into sound by using magnetism and the vibration of air. While a large speaker vibrates the air in the space around it to create sound, a pair of earphones only vibrates the air inside the ear canal. Earphones are usually designed as either closed-back or open-back, which affects how much sound can escape from them.
A:Transistors function as current amplifiers or binary switches. With amplification, a small current controls a gate for a greater current. As switches, a 5-volt threshold (gate open) equals binary digit one, less than 5 volts (gate closed) equals binary zero.
A:There are many advantages and disadvantages of HTML, including compatibility and difficulty of use. All Web browsers can read HTML files and webpages, but the language can be difficult to decipher, especially since one small typo could lead to a nonfunctioning webpage.
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: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:A dry run testing is a process in which a computer, electrical equipment or a piece of hardware is tested for stability and performance issues prior to release. A dry run test is done in controlled conditions to minimize the negative effects of any product failure.
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 binary code converter is a program that lets users convert binary code into simple text. Binary code is code used by computers based on the binary number system, a number system in which there are only two states, on and off, symbolized by zero and one.
A:Input, process, output (IPO), is described as putting information into the system, doing something with the information and then displaying the results. IPO is a computer model that all processes in a computer must follow.
A:The Michelangelo virus was a boot-sector computer virus that was spread through infected floppy disks. The virus copied itself if an infected floppy disk was left overnight inside a computer. At restart, the computer then booted up the floppy disk and copied the virus to the hard drive.
A:Robots are used for a variety of purposes, including welding, handling chemicals, marine exploration and space missions. Advanced robots are designed to serve and assist people. There are other robots that mow lawns and vacuum floors.
A:A computer mouse may freeze or become unresponsive because of accumulated dirt, use of the wrong settings or a bad surface. An incompatible driver, a loose cable or interference from other input devices may also cause the computer mouse to function abnormally.
A:If everything on a computer screen has turned sideways, the culprit is likely to be someone attempting to pull a prank; a quick combination of keystrokes changes the orientation of a computer's screen. It is startling and disorienting to see the screen display turned sideways, but it does not mean that something terrible or irreparable has happened to the computer.
A:With a PC, if a hard drive failure is imminent, the user typically needs to replace it after creating a set of recovery discs and backing up personal files to another hard drive or USB storage device. After installing the new drive and performing system recovery, the OS should be loaded. Personal files can be uploaded to the new hard drive after recovery.
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:When a cell phone says that the "SIM card is full," this most likely this means that the SIM card has reached its maximum storage capacity. A user needs to delete contacts and text messages or upgrade to a larger SIM card for more storage space.
A:You can make a bootable USB using the Windows command line. Creating a USB boot drive varies with different operating systems, so check with the instructions for your operating system if you use something other than Microsoft Windows.
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: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.