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Shadow RAM is a copy of Basic Input/Output Operating System (BIOS) routines from read-only memory (ROM) into a particular area of random access memory (RAM) so that they can be accessed more rapidly. Access in shadow RAM is typically in the 60-100 nanosecond range while ROM access is in the 125-250 ns range. In some operating systems like DOS, certain BIOS routines are not only used during the boot or start-up of the system, but also during normal operation, particularly to drive the video display terminal. In Windows and OS/2, thus, these routines are not used and the use of shadow RAM is not essential. In some systems, the user can turn the use of shadow RAM off or on.
Extranets can be also used to connect an intranet to Internet so that remote offsite access can be made in a company's intranet by an authorized individual. This can facilitate thr
Q. Illustrate Clock signals of clock pulse generator? Synchronization in a sequential circuit is attained by a clock pulse generator that gives continuous clock pulse. Figure
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Q. What is data in computers? In modern digital computers data is signified in binary form by employing two symbols 0 and 1. These are known as binary digits or bits however da
The Transmission-Gate input is linked to the D_LATCH data input (D), the control input to the Transmission-Gate is linked to the D_LATCH enable input (EN) and the Transmission-Gate
Explain segmentation? Segment memory addressing divides memory into many segments. Each of these segments can be considered as a linear memory space. Every one of these segmen
Show that a positive logic NAND gate is equivalent to negative logic NOR gate. Ans: Positive logic denotes True or 1 with a high voltage and False or 0 with a low volt
Q. Basic working of Network layer? Network layer: Network layer is responsible for routing a packet within the subnet that is, from source to destination nodes across numerou
Have you heard about e-commerce? What place is e-commerce located at? What are e-commerce objectives? When did e-commerce starts? How e-commerce works? Who takes advantages of e-co
Q. Explain salient points about indirect addressing? A number of salient points about this scheme are: In this addressing scheme effective address EA and contents of th
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