Computer Basics - Computer and Device Interaction - Computer Devices

Computer Devices

By Josh H. Burton

A basic computer system comes with a computer, monitor, keyboard, and mouse. There are also tons of accessories and peripherals that can be added. Let's take a look at how they all work together.

If you were to make an analogy to the human body, the computer would be like the brain, the monitor - the mouth, the keyboard and mouse - eyes and ears... The computer controls all the functionality in the system. The other devices are there to give the computer inputs and to provide it with outputs (computer devices).

Let's run through an example, let's say the user presses a keyboard key - ESC. The keyboard passes that input on to the computer (the brain). The computer then decides on what to do with this signal - which depends on what the computer is currently doing. Say the computer decided that ESC means that it should exit out of whatever application it is currently in. It exits the application and sends a signal to the monitor (output) to show a new picture, one where that application is closed.

There are tons of other devices (computer devices) that can be plugged in to the computer, some of them are input devices, some output devices, and some are both. An all in one printer/scanner can be both an input and an output device, print(output) and scan(input).

Sometimes the separation of devices (computer devices) isn't all that clear, like in a laptop. The computer, monitor, and keyboard are all in the same box. But the separation of components still exists, even if they don't have space between them. Inside the laptop, the computer is still separate from the keyboard and from the monitor, and it still considers them to be input/output devices that it can communicate with.

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Article Source: http://EzineArticles.com/?expert=Josh_H._Burton

Computer Devices

External Hard Disk - What is This Computer Device?

Computer Devices

By Josh K.

An external hard disk can be attached to a computer, such as a desktop, laptop, netbook, etc., and be used for a variety of purposes. In this article, some of these potential uses are discussed, along with additional details about the device. The external hard disk can be a reasonable option for some people who will get more beneficial use out of it due to its nature, as compared to an internal version which has different benefits and drawbacks. It can be connected to different types of interface ports, depending on what specifications the particular drive was built for.

If an individual needs additional storage for files on his computer, and does not want to open up the tower (or other type of computer) in order to place a new internal hard drive inside, this option might be useful. Adding more storage capacity is a common reason for getting a new hard disk, whether external or internal in nature. Using this separate drive to hold backups of important data is also a common use. Whether it be business files, years of family photos and videos, or other information, having a second copy can protect against the possible loss of these files should they be deleted, the data become corrupted, or the hard drive be physically damaged.

These are not the only uses that can be had from an external hard disk, and as they are becoming larger in size (at least up to 4 TB commonly available), and cheaper per amount of capacity, these drives may be useful to a number of people looking for that extra flexibility.

To read more about the external hard disk, including additional usages, more details on capacity, potential price ranges, and other information, please visit ExternalHardDisk.org.

Article Source: http://EzineArticles.com/?expert=Josh_K.

Computer Devices

Driver Updates - Why You Need to Update Your Computer Device Drivers? - Computer Devices

Computer Devices

By Mars Wade

Some people don't have the habit of updating their computer drivers regularly. Actually, like Windows updates, it is necessary for you to update device drivers periodically. Because they are also important parts of a Windows system and have a great effect on PC performance.

What is Device Driver?

Device driver is a special system program which allows Windows system to connect with the device on a computer. Only with it, can Windows system give orders to a device and make the device implement operations. Without a driver, you will not be able to use your printer, camera, scanner or other hardware on your PC. You can see how important it is.

Why Need to Update Drivers?

A lot of hardware manufacturers release updates of drivers for their products frequently for the purpose of fixing some bugs or improving the performance of the hardware. Some drivers, like software, have bugs or errors more or less. And some cannot make the most of devices and even prevent the hardware from achieving high performance.

And driver files are easily corrupted or deleted by some invalid operation by you or virus. When one of them is corrupt or missing, the device will not be able to work properly. In such a situation, you will need to reinstall the driver to make the device work properly.

How to Update Device Drivers?

You can go to the websites of the manufacturers to check if there are any updates and download the latest version. Please note that for a specific hardware model there can be several versions for different Windows systems! You need to make sure the driver you download is for the model of your device and the Windows system that you are using. If you install a wrong one, not only will the device not be able to work properly but also your system can crash down.

And checking and download the updates are time-wasting. The safest and easiest way is to click here to use a driver update software to help you. And you can click her e to visit my website to learn more tips to update windows drivers and make your computer run faster.

Article Source: http://EzineArticles.com/?expert=Mars_Wade

Computer Devices

How to Reset a Canon Ink Chip - Computer Devices

Computer Devices

By Jason Candanedo

Canon makes inkjet printers that use ink cartridges. Canon printers have a chip that tracks the ink usage utilized over time. But even when the monitor states that the ink cartridge is empty, in actuality it may not be, as the chip is not accurate at times. In these cases, this ink chip has to be reset to use the remaining ink in the cartridges.

Instructions

Step 1
Turn off the Canon printer then unplug the power cord from the power source. Also, disconnect the USB cord from your computer.

Step 2
Press and hold down the "Power" and "Resume" buttons simultaneously, and plug the power cord into an electrical outlet. This will start initialization on the printer.

Step 3
Release only the "Power" button (do not release the "Resume" button) and press and hold down the "Power" button again to start the test mode.

Step 4
Release both the "Power" and "Resume" buttons. This activates the service mode. Wait until the light display stops flashing.

Step 5
Press the "Resume" button to go through the printer settings until the "Reset Waste Ink Counter" or the "Ink Count" message appears. Press up to four times if necessary. Press the "0" button to reset the Cannon ink chip if the "Ink Count" message appears.

Step 6
Press the "Cartridge" button if necessary on some Canon bubble jet printers to reset the ink chip.

Step 7
Press the "OK" or "Set" button, turn the Canon printer off and unplug the printer from the electrical outlet.

Step 8
Plug in the printer to an electrical source, and then hook up the printer to your computer via the USB cable to reconnect the printer.

References

# Gdlp01.c-wss.com: BJC-85 Color Bubble Jet Printer Manual
# Gdlp01.c-wss.com: S500 Bubble Jet Printer Manual

Resources

# USA.Canon.com: Photo Inkjet Printers

Computer Devices