Installing A Printer

Go to Control Panel

Click Printer Option

Click Add a Printer

Click Add Local Printer

Select Port

Select The Printer & click Next

Click Next

Installation Wizard Appears

Now The Printer is Successfully Installed

You can see your installed Printer icon in printer wizard in control panel

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ISDN

ISDN stands for "Integrated Services Digital Network" A digital telephone connection like a modem that uses digital links & offers speeds above five times that of an analog modem. The ISDN system is a packet system that can also handle voice communication.

Diference between laptop & desktop computer

Most laptop processors are soldered directly in the motherboard, which means they cannot be removed. If there is some error in laptop processor, the entire motherboard needs to be replaced. Laptops processors can be slowed down when they are not running to their full capacity. The processor uses a technique called processor trotling that allows the operating system to put the processor in active sleep mode or shutdown mode. Laptop processors run at reduced clock rate than desktop processors. This helps them to produce less heat when running at full capacity. Laptop processors consume less power which though make them a slow performer but it greatly helps them to save battery life.

Asyncronous Communication

Asynchronous &is any data transmission that does not link the two devices with a common data clock. A Signal called a start bit is sent at the beginning of each segment, & a signal called a stop bit is sent at the end, these let the receiving device note the baundries(beginning & end) of a transmission packet. Early PC modems were almost Asynchronous devices operating at speeds of no more than 18,000 bps.

WorkStation Care

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