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Contact-based keyboards employ switches directly. Though they have a comparatively shorter life they are the most preferred type these days because of their lower cost. Three such types of keyboards have been used in PCs:
Mechanical Switches: These keyboards use conventional switches with metal contacts directly touching each other. Springs and other parts are used to control positioning of keycaps and give the right feel. On the whole this design isn't suitable to PC keyboards.
What is program-controlled I/O? In program controlled I/O the processor repeatedly checks a status flags to achieve the needed synchronization among the processor and an input
Analysis which determines the meaning of a statement once its grammatical structure becomes known is termed as? Ans. The meaning of a statement when its grammatical structure b
Can you tell me some of system tasks and their purpose? $display, $displayb, $displayh, $displayo, $write, $writeb, $writeh, $writeo. The most useful of these is $display. T
What is an operating system? An operating system is system software which provides interface between hardware and user. The operating system gives the means for the proper uti
Explain the PDCA cycle. PDCA is a four step problem solving method. The following are the description of each step: 1. P - Plan (Devise your Plan). Identify an opportunity a
Question: (a) Prepare short notes on the model primitives in Director MX 2004. (b) Therefore using the box primitive write codes to prepare a new model resource of length 50
mine sweeper algorithm.
How putchar function is used within a C Program ? The following program reads each character in the first line of input entered at the terminal's keyboard. It uses putchar to d
What is Read only memory (ROM) and Define the Use of it? A simple kind of ROM can be constructed from a decoder, Or gates, and a number of wires. Input
Q. Describe the Size and Speed of Scanners? Before actual scanning, a quick, low resolution scan known as pre-scan is made to preview the image and select scanning area. After
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