Computers & Hardware

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For a casual typist, the average typing speed is 41 words per minute (WPM) with 92 percent accuracy, according to eLearning Industry. The average is between 50 and 80 WPM for individuals who write for a living.

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  • What are the different types of microcomputers?

    Q: What are the different types of microcomputers?

    A: There are many different types of microcomputers, such as personal computers, tablet computers, smartphones and servers. Any type of computer or device that has a microprocessor chip is a microcomputer.
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  • What is the function of the CPU?

    Q: What is the function of the CPU?

    A: A CPU is the brain of a computer, according to About.com's Tim Fisher. Short for "central processing unit," the CPU interprets commands before executing them. The CPU is also called a processor or central processor.
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  • Why is the keyboard not in alphabetical order?

    Q: Why is the keyboard not in alphabetical order?

    A: The modern keyboard is not arranged in alphabetical order because millions of users have already learned the QWERTY keyboard layout, which is named after the first six letters in the top row of keys. The reason behind the development of the QWERTY layout as opposed to an alphabetical layout is debated, but two primary theories are accepted explanations.
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  • What is the meaning of hardware and software?

    Q: What is the meaning of hardware and software?

    A: Hardware refers to the physical pieces of a computer while software refers to the programs stored within it. Both are essential to the operation of computers.
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  • What does USB stand for in terms of computer hardware?

    Q: What does USB stand for in terms of computer hardware?

    A: USB stands for Universal Serial Bus. It is an interface for connecting peripherals to computers. Keyboards, printers and portable media players are some examples of peripherals.
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  • What are microprocessors used for?

    Q: What are microprocessors used for?

    A: Microprocessors are used in servers, desktop computers, laptops and mobile devices. They are popular in embedded devices, which traditionally use microcontrollers. Microprocessors were named to set them apart from larger processors used in the middle of the 20th century.
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  • What is a computer processor used for?

    Q: What is a computer processor used for?

    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.
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  • Why does my mouse keep freezing?

    Q: Why does my mouse keep freezing?

    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.
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  • What is a computer processing cycle?

    Q: What is a computer processing cycle?

    A: A computer processing cycle refers to the processes that take place in a computer from the time data is entered into the computer through an input device to the time that results are presented to the end user for consumption. There are four basic steps that make the computer processing cycle.
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  • What are examples of modern technology?

    Q: What are examples of modern technology?

    A: People are surrounded by examples of modern technology every day, from cellphones to the diagnostic equipment physicians use when patients visit their offices and the software children use both in the classroom and for their homework. Modern technology constantly changes, and for the technology lover, there's always something new to discover.
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  • What is the difference between inkjet and laser printers?

    Q: What is the difference between inkjet and laser printers?

    A: Inkjet printers create images by shooting drops of ink onto paper as dictated by a computer, while laser printers use a xerographic process in which an image is digitally scanned by a laser, then transferred to paper. It is important to consider the advantages and disadvantages of both types when shopping for a printer.
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  • What is backing storage?

    Q: What is backing storage?

    A: Backing storage refers to any computer storage media besides the internal memory. When a computer restarts or loses power, it clears the internal memory. Backing storage retains data for an indefinite period even without power. Common backing storage devices include internal hard drives, external hard drives, USB flash drives, network drives, DVDs, CDs and magnetic tape.
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  • What are examples of hardware?

    Q: What are examples of hardware?

    A: Examples of computer hardware include a keyboard, mouse and monitor. Computer hardware is any physical equipment that is used to make up your computer. All of the individual equipment inside of a computer is also hardware, including the hard disk, motherboard, memory and any disk drives.
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  • What is the difference between KB, MB and GB?

    Q: What is the difference between KB, MB and GB?

    A: While all three are units of memory storage on a computer, a kilobyte (KB) is smaller than a megabyte (MB) and a MB is smaller than a gigabyte (GB). There are 1,024 bytes in 1 KB, 1,024 KB in 1 MB and 1,024 MB in 1 GB.
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  • Can you leave your laptop on all the time?

    Q: Can you leave your laptop on all the time?

    A: There is no conclusive evidence to suggest that leaving a laptop on all of the time causes any damage to the system. The monitor or screen can be damaged by persistent images, but settings such as power-saving and screen-savers prevent this in long-term usage.
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  • How do remote controlled toys work?

    Q: How do remote controlled toys work?

    A: Remote controlled toys are typically controlled by a transmitter, which sends a signal over a frequency to the receiver that sits in the toy being controlled. The transmitter has a power source, usually a battery, which powers the transmitter.
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  • What is the function of a modem?

    Q: What is the function of a modem?

    A: A modem is an external or internal device thats function is to transmit digital data over communication lines. Traditional modems once used frequently with dial-up networks convert analog data from telephone lines into computer digital data. Broadband modems transfer digital data between two digital devices.
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  • What is the difference between a mainframe and a microcomputer?

    Q: What is the difference between a mainframe and a microcomputer?

    A: A mainframe is a large, powerful computer that can process requests from millions of users at the same time, whereas a microcomputer is a small computer designed to be used by one person at a time. Large organizations such as banks and government agencies use mainframe computers. Single users work with microcomputers to perform personal and work-related tasks.
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  • What was the name of the first computer?

    Q: What was the name of the first computer?

    A: The Electrical Numerator Integrator and Calculator (ENIAC) was the first computer, and it was developed in 1946 by John Presper Eckert and John Mauchly. The duo's research was sponsored by the U.S. military.
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  • What is the purpose of a CPU?

    Q: What is the purpose of a CPU?

    A: A computer's CPU is considered the "brain of the computer," being responsible for its major processes, like searching for information, sorting information, making calculations and advanced processes as well as decisions integral to the functioning of the computer. The acronym CPU actually stands for central processing unit and, as such, works behind virtually any task the user is doing on their computer, like writing essays, making photo albums or reading emails. The CPU is made out of a very complex silicon integrated circuit board mounted with tiny, microscopic transistors that can easily number in the billions.
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  • How does RAM work?

    Q: How does RAM work?

    A: Random Access Memory, or RAM, is used by computers to store and access information using a random order. This resource provides a temporary way for computers to process electronic data, while making computers more responsive and helping operate memory-intensive programs. RAM chips are only capable of storing and accessing information when electrical power is present.
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