Question

a. Explain the desktop metaphor when used with computer systems. What does this metaphor convey to the user and why is it a valuable approach to using systems?

b. Why is it valuable that computer circuits become miniaturized; what did Dr. Gordon Moore add to this? What law is he credited with, and does that law still apply?

c. Explain in detail everything that you should check or do before sending an email. Say why each of these items is important.

d. Explain how vendors can made a profit from open source software. Why might you have greater confidence in open source software than software that is kept totally secretive and private / confidential.

Answer 1

ANSWER A

Desktop metaphor is an interface metaphor which is a set of unifying concepts used by GUI to help users interact more easily with the systems.

ANSWER B

Miniaturization is trendy for many years because they shrink in size, reduce the cost, power consuption, we can produce higgh volume product with low cost. Moore's law says that number of transistors is dense integrated circuit doubels approximately every two years, yes this law is still valid.

ANSWER C

before send the email most important thing to check is the recipents mail id because if the mail id is wrong the mail will be delivered to the wrong person or will not be delivered.you need to check the subject because the subject says the overview to the mail, the attachments are needed to be checked.

ANSWER D

Open source companies create s/w and will not make it public, which means some parts of the software are kept hidden. and you can even sell the open source code.

Main thing is its free and you dnt have to pay anything