1 What is the advantage of using a pointing device to enter

1. What is the advantage of using a pointing device to enter patient’s vital signs compared with simply typing in the values using a keyboard?

2. How is the use of a patient ID bracelet containing a bar-code representation of the patient’s ID and a bar-code scanner can lead to improved quality of care in a hospital?

3. What is meant by the resolution of a VDT, and indicate applications where high resolution is important?

4. What are three functions of an operating system?

5. What is the difference between the Internet and the world wide web?

6. What are two key issues to include in contract negotiations when considering new software applications?

Solution

Functions of operating system

1) Managing the computer resources such as central processing, memory disks, printers, mouse etc.

2) Mainatain and establish a user interface.

3) Provide and execute the application software.

Difference between Internet and World Wide Web:

In simple terms world wide web is part of internet.Web is just one way of transfering and communicating data over internet.World wide web is the way of accessing information that is available over internet.Internet collects million of computers and information together.Internet is the thing that is used for sending mails.