vu cs403 Mid Term Subjective Solved Past Paper No.2
vu cs403 Database Management Systems Solved Past Papers
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The Instant Messaging services available allow us to maintain a list of people (contacts) that we interact with regularly. We can send instant messages to any of the contacts in our list as long as that contact is online.
Following steps are involved in IM working.
- User commences the IM client.
- IM client finds the IM server & logs in.
- Interactive forms are used to gather user data and interact with the user.
- Forms can be made interactive with the use of client side scripting and server side sciprting.
- In HTML, <FORM> </FORM> tag is used to insert the form in a web page and it always lie in <BODY></BODY> html tag.
- without form's web site is only "READ ONLY".
- with the help of forms a user and can search the contents, place order for goods and services.
- Forms can be simple or very complex, based on the requirement.
- forms can contain a single element or many e.g text area, buttons
The processor is the logic of a computer and functions comparably to a human central nervous system, directing signals from one component to another and enabling everything to happen. A microprocessor is made from miniaturized transistors and other circuit elements on a single semiconductor integrated circuit (IC) . These are made up oof semiconductor and silicon.
Microprocessor are composed of components which has only two states either 0 or 1. Binary number system is also composed of these two states.
Microprocessor till today only understand the machine language and machine language is only based on binary number system. Even today's 64 bit microprocessors are also based on this technology.
-- or --Because this system is natural for digital computer. Digital computer have fundamental building blocks like ON & OFF Etc so it is natural to represent those in a number system that has only two symbols e.g Binary Numbers 0,1. Whereas decimal system is natural for human.
-- or --At this point in computer science we only have two 'digital' states, which is that any bit can only be either on or off.
The on/off is commonly used to represent yes/no.(On(1) = Yes, Off(0) = No)
