الجمعة، 19 أكتوبر 2012

INFORMATION SYSTEM AND  STUDENTS









students who study in educational insitution use information system and information technology to help them in their study .. they use information technology to register for class. moreover, they use it to find information to do their project . They also use it to download thier lecture and notes to help them in studying and doing exams. in addition , they use it in preparing their presentation .Now aday , many students they joint their class via internet instead of join class.






الخميس، 4 أكتوبر 2012

ROBOTS 

A robot is a mechanical device that can perform tasks automatically. Some robots require some degree of guidance, which may be done using a remote control, or with a computer interface. A robot is usually an electro-mechanical machine that is guided by a program or circuitry. The branch of technology that deals with robots is called robotics. Robots have replaced humans in the assistance of performing those repetitive and dangerous tasks which humans prefer not to do, or are unable to do due to size limitations, or even those such as in outer space or at the bottom of the sea where humans could not survive the extreme environments. Some people have developed an awareness of potential 
problems associated with autonomous robots and how they may affect society.




Mobile robot :

 Mobile robots have the capability to move around in their environment and are not fixed to one physical location. Mobile robots are also found in industry, military and security environments. They also appear as consumer products, for entertainment or to perform certain tasks like vacuum cleaning. Mobile robots are the focus of a great deal of current research and almost every major university has one or more labs that focus on mobile robot research.


 Industrial robots:

Industrial robots usually consist of a jointed arm (multi-linked manipulator) and an end effector that is attached to a fixed surface. One of the most common type of end effector is a gripper assembly. 



Service robot:

Most commonly industrial robots are fixed robotic arms and manipulators used primarily for production and distribution of goods.

Modular robot:

Modular robots are a new breed of robots that are designed to increase the utilization of the robots by modularizing the robots. The functionality and effectiveness of a modular robot is easier to increase compared to conventional robots. These robots are composed of a single type of identical, several different identical module types, or similarly shaped modules, which vary in size.

Collaborative robots:

A collaborative robot or Cobot is a robot that can safely and effectively interact with human workers in performance of simple industrial tasks. The robot stops if its movement encounters a human in the way of its robotic arm and has a prominent off switch which its human partner can push if necessary. The product, intended for sale to small business, was touted as the robotic analogue of the personal computer.


In my opinion robot is the great innovation. It can help people to their work . Moreover , it does work that is dangerous for people. On the other hand , robot decrease the number of skilled labor and employed worker. This is because many company use robots than human resource