SPAM

Spam

    Spam is an unsolicited e-mail message or newsgroup posting sent to many recipients or newsgroup at once. Spam is Internet junk mail. The content of spam ranges from selling a product or service, to promoting a business opportunity, to advertising offensive material. Once study indicates more than 80 percent of e-mail is spam. Instead of via e-mail, some spam is sent through an instant messaging system and, thus, is called spim. Another type, called spit, is spam sent via VoIP.

Companies of the Cutting Edge

AMAZON

            Online shoppers can find practically any product they desire on Amazon.com. Billing itself as the “Earth’s most customer-centric company,” it offers books, movies, electronics, clothing, toys, and many other items.

            Jeff Bezos founded Amazon in 1995 knowing that book lovers would gravitate toward a web site offering the convenience of browsing through millions of book titles in one sitting. He fulfilled orders for customers in every U.S. state and 45 additional countries during the first 30 days of business. All shipped from his Seattle-area garage.

Photo Editing and Photo Management Software

photo editing software

         Instead of professional photos editing software, many home and small business users work with easier-to-use personal photo editing software, which is available both as packaged software and as web applications. Personal photo editing software allows users to edit digital photos by removing red-eye, erasing blemishes, restoring aged photos, adding special effects, enhancing image quality, or creating electronic photo albums.

Pointing Devices

         The mouse is the most widely used pointing devices today. Some users, however, work with other pointing devices. These include the trackball, touchpad, pointing stick, touch screen, touch-sensitive pads, stylus, pen, signature capture pad, and graphic tablet. But in this article I just want to explain you about Trackball, Touchpad, and Pointing stick.

Trackball

Trackball

         A Trackball is a stationary pointing device with a ball on its top or side. The ball in most trackballs is about the size of a Ping-Pong ball.

         To move the pointer using a trackball, you rotate the ball with your thumb, fingers, or the palm of your hand. I addition to the ball, a trackball usually has one or more buttons that work just like mouse buttons.

         A trackball requires frequent cleaning because it picks up oils from fingers and dust from the environment. For users who have limited desk space, however, a trackball is a good alternative to a mouse because the device is stationary.

System Software

            System Software consists of the programs that control or maintain the operations of the computer and  its devices. System software serves as the interface between the user, the application  software, and the computer’s hardware. Two types of system  software are the operating system and utility programs.

Window 7

         An Operating System is a set of programs that coordinates all the activities among computer hardware devices. It provides a means for users to communicate with the computer and other software. Many of today’s computers use Microsoft’s Windows or Mac OS, Apple’s Operating system.

         When a user starts a computer, portions of the operating system are copied into memory from the computer’s hard disk. These parts of the operating system remain in memory while the computer is on.

         A Utility Program allows a users to perform maintenance-type tasks usually related to managing a computer, its devices, or its programs. For example, you can use a utility program to transfer digital photos to an optical disc. Most operating system include several utility programs for managing disk drivers, printers, and other devices and media. You also can buy utility programs that allow you to perform additional computer management functions.