Comprehensive questions and detailed answers for Unit 2: (I). Computer Software. Perfect for exam preparation and concept clarity.
What is a DBMS? What is its function?
What is operating system? Why is it important to assess it on a computer before buying one?
Match the following terms with their definitions.
Logical record a) the collection of data transferred as a unit
Field b) the user's permitted view of the data
Physical record c) the logical design of the database
Internal schema d) an item of data such as a number, a name, or an address
External schema e) the way that the data is physically held f) the collection of the data relating to one subject
Software purchasers pay a lot of money for package software. Do you think software purchasers are getting what they order for or what they need? In what conditions they do not get the particular software they order for? What factors affect in this? How do you feel from the perspectives of both the software purchaser and the developer? What are the things both the purchaser and the developer should consider before the contract to make a package of software is produced?