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Explain the term- Tracker ball and Braille printers
Tracker ball
Easier to use than a mouse if people have problems using their arms and hands or if they have a coordination problemBraille printersDot matrix printers can be modified to produce raised dots (i.e. Braille) - this helps blind and partially-sighted people to read the output
How do we merge an image from a file to the current image in GIMP? Ans) Use "File then Open as Layers" menu command or just take the file to a window and drop it there. The file w
Determine about the Radio Frequency (RFID) This method includes using small electronic devices containing an Identification microchip and antenna; they work in a similar way
Why is C standard library needed? C Standard Library: C would have been a tough programming language in absence of the standard library. The standard library in C contains
what is jsf
Q. Illustrate Simple ALU Organisation? An ALU comprises circuits which perform data processing micro-operations. Though how are these ALU circuits used in conjunction of other
The I/O interface provides a technique for transferring information between external I/O devices and internal storage. Peripherals linked to a computer require special communicatio
Q. Describe the Horizontal Frequency or cycle? Horizontal Frequency: The time to scan one line connecting the right edge to left edge of the screen horizontally is known as t
Explain Dial Tone and Ringing Tone in strowger telephony. Dial Tone: it is used to indicate that the exchange is ready to recognize dialed digits by the subscriber. The subsc
What is the function of ALU? Most of the computer operations (arithmetic and logic) are performed in ALU. The data needed for the operation is brought by the processor and the
what is homogeneous coordinate system
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