A computer system consists of hardware and software. :: Computer Science

A figurer system consists of hardware and software.A computer system consists of hardware and software. Hardwareis theequipment, which makes up the computer system. Hardware consists of- Input devices such as keyboard, snarf, joystick- The Central Processing Unit (CPU)- Output devices such as a printer, monitor, graph plotter- Backing storage devices such as disc drive, hard drive- Media such as discs, tapes, paper etcThere is hardware that I used is Mouse Keyboard Printer MonitorA tracker junky black eye====================A tracker ball mouse is an input device and similar to a mouse but theball is set into a cup on the top of the unit. A finger or, on largertracker balls the palm of the hand, is used to weave the ball in anydirection. The ball controls the movement of the pointer on the test. Buttons on the tracker ball work in the same way as mousebutons to activate processes on the screen. My alternative of using amouse with a tracker ball would be a mouse without a tracker ball.Benefit========* A tracker ball does not require a large flat surface.Drawbacks==========* Most people find them a bit fiddly* Not accurate* Not quietchoice Mouse without a tracker ball=========================================The pointer on the monitor screen mirrors the movement of the mouse bythe users hand. Under the mouse is a ball, which rolls as the mouseis moved. This movement of he ball causes two shafts to rotate insidethe mouse one shaft records the movement in the north-south directionand the other shaft records the east-west movement. When the screenpointer is over a0n icon or menu selection, the mouse button can beclicked, double clicked or dragged to activate a process. Some mice incur a small wheel as well as the buttons. The function of the wheeldepends on the software being used on the computer in a document, itcan allow the user to scroll up and down in a desktop publishingpackage, it might enable the user to purr in and out of the page. Overa period of time , the performance of the mouse can deteriorate as theball and shafts collect dust and dirt. Some ultramodern mice use a lightbeam and detector to register movements instead off the mouse ball.Many mice now use infrared or wireless links to the computer, whichremoves the need to have a connecting cable.Benefit========* It is easy and convenient to use* It is inexpensive* Most modern software includes an option to use it.* It selects a position on the screen more quickly than is possible