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Tired Of Taking The Long Way Home? Try These Shortcut Keys Instead. (continued) By Jonathan Imberi If you missed last issue's article about shortcuts you can read it here. Here is this issue's continuation of Windows shortcuts: Below is a listing of keyboard shortcuts that can be used on computers running a Microsoft Windows operating system and using a keyboard with a Windows Key. In the below list of shortcuts, the Windows key is represented by "WIN".
CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. CAPTCHAs are commonly seen at the end of online forms and ask the user to enter text from a distorted image. The text in the image may be wavy, have lines through it, or may be highly irregular, making it nearly impossible for an automated program to recognize it. Of course, some CAPTCHAs are so distorted that they can be difficult for humans to recognize as well. Fortunately, most CAPTCHAs allow the user to regenerate the image if the text is too difficult to read. Some even include an auditory pronunciation feature. The term CAPTCHA (for Completely Automated Public Turing Test to tell Computers and Humans Apart) was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper and John Langford of Carnegie Mellon University. |
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- Question:
What should I backup on my computer?
- Answer:
Your should backup any important files that you do not want to lose such as pictures and documents as well as files that may not be as important but hard to replace such as music/MP3 files. If you use any financial software like QuickBooks or MS Money then you should backup your data file as well. You should backup anything that you don't have stored somewhere else or that cannot be easily replaced. Do not worry about backing up software because in almost all cases it has to be installed from the installation media and cannot just be copied from a backup to your computer.
- Question:
What is the difference between memory and disk space?
- Answer:
Memory and disk space are perhaps the most widely confused terms in the computing world. To truly comprehend how your computer works, you must first understand what memory and disk space are.The hard drive is a spindle of magnetic discs that can hold several hundred gigabytes of data. Disk space refers to how much space you have available on your hard drive for storing files. When you save a document or install a new program, it gets stored on your hard drive. The more files you download, install, or save on your hard drive, the more it fills up.Memory is not the same as disk space. Memory refers to the Random Access Memory (RAM) inside your computer. These are small chips that hold several memory modules side by side. Your computer uses memory (RAM) to store actively running programs on the computer, including the Operating System. For example, the Operating System's interface and other processes get loaded into memory when the computer boots up. When you open a program like Microsoft Word, it gets loaded into the computer's memory as well. When you quit the program, the memory space is freed up for other programs to utilize.RAM can be accessed several hundred times faster than a hard drive, which is why active programs must be loaded into the RAM from the hard drive. Because most data on the hard disk does not need to get loaded into the system memory at one time, computers typically have much more disk space than memory. For example, a computer may come with a 300 GB hard drive, and only 1 GB of RAM.So if your computer tells you that you don't have enough space to install a program, you will need delete files from your hard drive that you don't need or buy an additional hard drive. If your computer says there is not enough memory to run a certain program, you will need to upgrade your memory by buying more RAM. Knowing the difference between these two types of hardware can save you precious time and money.
