Computer Essentials

Computer Essentials

Question 11Centralized Models

A centralized system has a large data center that hosts all server resources, The data center is responsible to hold all messaging between system users. This also includes Authentication Services, Sharing Files, applications and the emails. They can connect both locally and remotely.

Distributed Models

A distributed system is a peer to peer connection. In distributed model, the remote site is responsible to host its Shared Files, Server, backup files and Internet access controls. The purpose of a Distributed model is that all site are independent of each other. Trackpads

A trackpad interprets pressure to translate it into movement of a cursor. Trackpads are Equipped in Laptops. It has transmitters and receivers to translate movements. A finger is used to move the pointer in trackpad.TrackBalls

A trackball is a popular pointing device that has a ball with a socket comprising of sensors to for rotation detection. To move a pointer, the ball is rolled by the palm, thumb or fingers, hand.Joysticks

A joystick is a device usually used to play games, it has a stick, one or more buttons. The direction and angle of the device is reported at the base of the joystick. The other kinds of joysticks are used in vehicles such as trucks etc. Finger operated Joystick is found in small electronic devices like mobile phones. Unit II Assessment COMPUTER ESSENTIALSNew Findings

The Educational software can be designed according to user requirement, which depends on the needs of the user, student, teacher etc. The Educational Software is used by schools customized according to their requirement. The teacher may use different software than the students. Different students may use different processor according to their level of education (www.ncte.ie).

Positive aspects

They provide tools for students to create their own content. Thus, supports creativity of the students. It provides different types of word processors and the graphic programs. In this was the teachers, the student at different levels can find a word processing program according to their requirement. Like a teacher may select a program that consists of more options and supporting sounds and graphics that may not be supported by the student processing program that has fewer options, depending on their needs. A senior student may require auditory feedback to monitor their work. There are various programs that can help the individuals students teachers as well as schools to find out a program according to their special requirement (www.ncte.ie).Some disadvantages of Educational ...