A computer alone will not aid a person to do their work efficiently with speed and comfort. A computer should be equipped with certain accessories in order to make the work carried out using this machine easier and more efficient, with increased speed and comfort. There are two forms of such accessories, basic accessories to achieve basic objectives and advanced and much more sophisticated accessories, for carrying out complex and time consuming activities using computers.
Mostly, these accessories are used by individuals who have a deep knowledge of computers and who are at better advantage of using such accessories. Hence, these accessories can range from smallest of the equipment to the largest and most complex gear available in the computer world.
Some such useful advanced accessories are listed below:
Portable Storage Devices
Almost all people working in the computer occupation find the need to store and move information from place to place in many forms. This can be achieved either through transmitting of information or through storage devices. Of the two, storage devices play a key role, and it is the sole reason why these devices and technologies have come into popularity today.
Devices such as USB flash drives, having the capacities to store huge amounts of information in the median ranges of 8 to 12 Gigabytes of information have become increasingly useful and popular among the users of information technology based systems. The information about USB flash drives given in wikipedia.com clearly shows its valuable characteristics, as quoted below.
"A USB flash drive is a NAND-type flash memory data storage device integrated with a USB (universal serial bus) interface. USB flash drives are typically removable and rewritable, much shorter than a floppy disk (1 to 4 inches or 2.5 to 10 cm), and weigh less than 2 ounces (60 g). Storage capacities typically range from 64 MB to 32 GB with steady improvements in size and price per gigabyte. Some allow 1 million write or erase cycles and have 10-year data retention, connected by USB 1.1 or USB 2.0."
CD and DVD Recordable Drives
Since there is a massive usage of CDs and DVDs by people out there, it is common these days for people to add accessories like CD-RW and DVD-Recordable devices or burners (as they are popularly known), to their computers. These devices can come very handy for people with the need to store information permanently and in large numbers. DVDs provide extremely high levels of storage capacities, relatively to other storage discs.
For people who are constantly in connection with networks, whether local or the internet, network devices play a vital role to facilitate these connections. One of the main devices used in this purpose is called a modem.
A modem enables a computer to transmit data over long distances by means of telephone or cable lines. This transmission first undergoes a transition or conversion process, as computer information is always stored in digital mode, where as a telephone or cable line can only carry analog waves. A modem facilitates this conversion.
Another similar device is called a router, which forwards data packets along networks. A router is always connected to at least two networks, most popularly two Local Area Networks (LAN) or Wide Area Networks (WAN), or even a LAN and its Internet Service Provider's network. Routers are typically located at gateways, the places where two or more networks connect.
Summery: This article describes more advanced forms of computer accessories, which facilitates their multi usage, especially for people working in the Information Technology sector.