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Keyboard And Speakers

            
             The keyboard is not just an accessory it is a necessity. If there weren't a keyboard it would be very difficult to use a computer. What is a Keyboard? "Keyboard, in computer science, a keypad device with buttons or keys that a user presses to enter data characters and commands into a computer. Keyboards emerged from the combination of typewriter and computer-terminal technology. They are one of the fundamental pieces of personal computer (PC) hardware, along with the central processing unit (CPU), the monitor or screen, and the mouse or other cursor device." A keyboard is an input device that gives information to the motherboard. The keyboard today is very similar to the first typewriter in 1873. Christopher Latham Sholes developed the first commercially successful typewriter. In 1873 the keys were arranged alphabetically. Quickly, people became adept to using the keyboard that the keys would jam when being struck quickly. To overcome this problem Sholes would try to make the job of typing as slow as possible. Sholes placed the most frequently used keys as far apart from each other as he could. His keyboard became known as the QWERTY keyboard.
             .
             In the 1930's a man by the name of August Dvorak put nine of the most used letters in the middle row of the keyboard. This allows the typist to write over 3,000 words without the fingers reaching. In comparison, only about 50 words can be typed on a keyboard without reaching on QWERTY's middle or home row. Dvorak's Keyboard is known as the Dvorak Keyboard.
             An even better keyboard than the Dvorak version was called the Malt keyboard, which was created by Lillian Malt. The Malt keyboard has staggered rows, gives greater use of the thumb and makes it easier to reach the backspace and other normally out of the way keys. Unlike the DVORAK keyboard! .
             There are many different styles of keyboards. There is even on the can fold up and fit in to your pocket. This style of keyboard would not be meant for a desktop PC but for a Palm Pilot.


Essays Related to Keyboard And Speakers

1. Thriving Bacteria on Our Personal Computers

To support the idea, the experimenters took samples of bacteria from the screen (group 1), the keyboard (group 2), the touchpad (group 3), the speaker (group 4), and the air (group 5, control group), respectively. ... The experimenters predicted that the sample collected from the keyboard and touchpad would have more bacteria colonies than the samples from the speaker and the screen. ... Swab the bottom left corner of the screen (group 1), the "wersdf " area of the keyboard (group 2), the bottom right ΒΌ of the touchpad (group 3), the speaker of the PC/speaker (group 4), and the air (group 5...

  • Word Count: 1252
  • Approx Pages: 5
  • Has Bibliography
  • Grade Level: High School

2. computer

First you have your outside units like your printer, monitors, modem, floppy disk drive, CD ROM drive, scanner, speakers and keyboard. ... Speakers allow us to here the sounds coming from the computer. The keyboard is an input unit that produces data bits. ...

  • Word Count: 911
  • Approx Pages: 4
  • Grade Level: High School

3. Assistive Techonology

It can be used for activities including turning pages, drawing, painting, computer keyboards, or a touch screen device. ... FM systems transmit sound from the speaker's microphone to the listener's receiver through radio waves. The speaker wears a transmitter and a microphone, and the listener uses a portable receiver with either headphones or earphones. ... Dynamic display speech generating devices can use photo, symbol, word displays and or an onscreen keyboard. ...

  • Word Count: 778
  • Approx Pages: 3
  • Has Bibliography
  • Grade Level: Undergraduate

4. computers

People can add printers, bigger speakers, desktop scanner beds, and best of all, a bigger hard drive. ... So Laptops usually have a touch screen computer, a touch pad that is just below the keyboard, or a tiny round button that sticks out from the keyboard keys, called a sensitivity button. ...

  • Word Count: 503
  • Approx Pages: 2
  • Grade Level: High School

5. Preventive Maintenance

Preventive maintenance is the key to obtaining years of trouble free service from a computer system. Cleaning connectors and contacts, defragmenting files, and cleaning your system are some of the few procedures computer users can do for preventive maintenance. One of the most important procedures...

  • Word Count: 278
  • Approx Pages: 1
  • Grade Level: Undergraduate

6. Components of a PC

Components of a PC Case: Cases are usually broken up into two different forms (ATX and AT). You must make sure that the case and motherboard are the same form. ATX allows for the motherboard to be installed at a 90 degree rotation. The case has the primary functions of housing, ventilating, powering, and blocking the transmissions of EMF's. Most cases come with screws, case feet, power cord, and expansion inserts. ...

  • Word Count: 5237
  • Approx Pages: 21
  • Grade Level: High School

7. The Design of the Sidekick

The speaker is small but it makes the design of the pager more sophisticated. ... When enough force is exerted on the rotation and the user lets go of the frame, the frame will rotate up to its upright position, revealing the 5-row, 46-key QWERTY keyboard that was underneath it. ... The Sidekick QWERTY keyboard tells the user that the keyboard should function just like a computer keyboard and features like those help to make a well-developed mental model. ... The small buttons on the QWERTY keyboard makes it difficult for users with large and thick fingers whereas people with small and thin...

  • Word Count: 2749
  • Approx Pages: 11
  • Grade Level: High School

8. Leading Computer Industry Companies

These elements are the most crucial parts of a computer; however, you can choose to customize your PC by adding gadgets such as a DVD player, burners, wireless keyboards, wireless and optical mousse, monitors, LCD flat panels within others. ... A 17" color monitor, an integrated stereo audio that includes a 2-piece speaker solution, a 104+ keyboard, and a Logitech USB with a optical wheel mouse are some of the devices includes in the package. ...

  • Word Count: 713
  • Approx Pages: 3
  • Has Bibliography

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