You Need Connections

You Need Connections :
No matter how powerful the components inside your computer are, you need a way to interact with them. This interaction is called input/output (I/O). The most common types of I/O in PCs are:
• Monitor - The monitor is the primary device for displaying information from the computer. • Keyboard - The keyboard is the primary device for entering information into the computer. • Mouse - The mouse is the primary device for navigating and interacting with the computer
• Removable storage - Removable-storage devices allow you to add new information to your computer very easily, as well as save information that you want to carry to a different location.  Floppy disk - The most common form of removable storage, floppy disks are extremely inexpensive and easy to save information to.  CD-ROM - CD-ROM (compact disc, read-only memory) is a popular form of distribution of commercial software. Many systems now offer CD-R (recordable) and CD-RW (rewritable), which can also record.  Flash memory - Based on a type of ROM called electrically erasable programmable read-only memory (EEPROM), Flash memory provides fast, permanent storage. CompactFlash, SmartMedia and PCMCIA cards are all types of Flash memory.  DVD-ROM - DVD-ROM (digital versatile disc, read-only memory) is similar to CD-ROM but is capable of holding much more information. Ports  Parallel - This port is commonly used to connect a printer.  Serial - This port is typically used to connect an external modem.  Universal Serial Bus (USB) - Quickly becoming the most popular external connection, USB ports offer power and versatility and are incredibly easy to use.  Firewire (IEEE 1394) - Firewire is a very popular method of connecting digital-video devices, such as camcorders or digital cameras, to your computer.
• Internet/network connection  Modem - This is the standard method of connecting to the Internet.  Local area network (LAN) card - This is used by many computers, particularly those in an Ethernet office network, to connected to each other.  Cable modem - Some people now use the cable-television system in their home to connect to the Internet.  Digital Subscriber Line (DSL) modem - This is a high-speed connection that works over a standard telephone line.  Very high bit-rate DSL (VDSL) modem - A newer variation of DSL, VDSL requires that your phone line have fiber-optic cables.