Irfan Qasim

  Mouse A  computer mouse  (plural  mice , also  mouses ) [nb 1]  is a hand-held  pointing device  that detects  two-dimensional  motion relative to a surface. This motion is typically translated into the motion of the  pointer  (called a cursor) on a  display , which allows a smooth control of the  graphical user interface  of a  computer . The first public demonstration of a mouse controlling a computer system was done by  Doug Engelbart  in 1968 as part of the  Mother of All Demos . [1]  Mice originally used two separate wheels to directly track movement across a surface: one in the x-dimension and one in the Y. Later, the standard design shifted to use a ball rolling on a surface to detect motion, in turn connected to internal rollers. Most modern mice use  optical movement detection  with no moving parts. Though originally all mice were connected to a computer by a cable, m...

  Laptop he difference between laptops and desktops Desktops and laptops are two different types of PCs. They are used for the same basic functions but have significant differences in design. Laptops are designed to be portable computers. They are smaller and lighter than desktops. The name connotes the user's ability to put the computer in their lap while they use it. Laptops have rechargeable batteries that can be used for a set period away from a power source. The display screen hinges up from the body of computer to open. Laptops are generally lower in  energy consumption  than desktop computers. Desktops are designed to be stationary and often reside on a desk. Desktops must be plugged in to a power source to be used. Unlike laptops, the display screen is usually separate from the computer, although this is not always the case. Because desktops are generally bulky, stationary items, they may come with features that laptops don't. An example is a  compact disc ...

 Phone Markiting Unlike traditional  marketing  efforts, mobile marketing takes advantage of the fact that many users of mobile devices carry them around wherever they go. As a result, location-based services can collect customer data and then offer coupons, deals, or promotions based on their proximity to a store or a place frequently visited by the consumer.  These marketing campaigns can be more targeted and specific to the individual user, and should, therefore, be more effective for the company doing the marketing. One example may be a marketing campaign that sends food-related coupons to a customer any time they come within half a mile of a specific supermarket.