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Q. Interfacing of keyboards?
The keyboard employs a special Input/output port which is similar to a serial port however doesn't explicitly follow the RS-232 serial port standard. In place of multiple data and handshaking signals as in RS-232 the keyboard employs just two signals by which it manages a bi-directional interface with its own set of commands.
Employing its elaborate handshaking mechanism keyboard and PC transmit commands and data to each other. USB keyboards work in a different way by using USB coding and protocol.
Write an application to calculate the diameter, circumference, and area of a circle with a radius input by the user. Assign the radius float variable and then output the radius wit
Write a script called addnames that is to be called as follows, where classlist is the name of the classlist file, and username is a particular student''s username. ./addnames cla
What is basic Analog Design? Analog design is rather challenging than digital design as analog circuits are sensitive to noise, operating voltages, loading circumstances and ot
Write an HTML program segment that contains hypertext links from one document to another . HTML permits any item to be placed as a hypertext reference. Therefore a single word
Q. Explain Usenet and Newsgroups? In Internet there exists another way to meet people and share information. One such way is through Usenet newsgroups. These are special groups
What is Software and hardware interrupt The software interrupts are program instructions. These instructions are inserted at desired location in a program. A program formed int
Displaying a number Supposing that two digit number 59 is stored as number 5 in BH and number 9 in BL to convert them to equivalent ASCII we will add "0" to each one of them.
Q. Explain Real time system? A real time system defines an interactive processing system with severe time limitations. A real-time system is used whenever there are rigid time
What are null values? If the value of a field in a table is indeterminate or unknown, it is known as a null value.
Signify this problem by means of: i. An Entity Relationship model; ii. Relational tables. Pete's Programmers is a firm which supplies part time staff on contract to organisat
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