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Explain the uses of thumbwheels
Two thumbwheels are usually required to control the screen cursor in its horizontal and vertical position respectively.
As the name implies, a trackball is a ball that can be rotated with the fingers or palm of the hand to produce screen-cursor movement. Potentiometers, attached to the ball, are used to measure the direction and amount of rotation. Trackballs are often mounted on keyboards or other devices such as the Z mouse as explained earlier.
What is a digital multiplexer? Ans: Multiplexer: Data selector or MUX is a logic circuit selects binary information from one of several input and directs this to a sing
What are the disadvantages of FCFS scheduling algorithm as compared to shortest job first (SJF) scheduling? Disadvantages: (i) Waiting time can be huge if short requests w
Any function can be expressed in a truth table.A truth table lists all possible combinations ofinputs and gives the output produced in eachcase.Truth tables must include all combin
Can we include customizing include or an append structure with Pooled or Cluster tables? No.
Using Module-Instance Parameter: Parameter values can be overridden while a module is instantiated. New parameter values are passed at the time of module instantiation. Top-
Q. Why we need number systems? Number system is used to signify information in quantitative form. Some of the general number systems are octal, decimal, hexadecimal and binary.
Q. Explain Physical Characteristics of magnetic disk? Figure below lists main features that differentiate among different types of magnetic disks. First head may either be fixe
mine sweeper algorithm.
Types of Addressing Modes: Each instruction of a computer mentions an operation on certain data. There are many ways of specifying address of the data to be operated on. These
To how many tables can an append structure be assigned. One table can be assigned to append structure.
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