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The most common type of non-volatile memory is the ROM device. This device is read only and the data is masked into the chip during manufacture. Variations of the ROM are one off programmable ones (PROM), erasable ones (EPROM) using UV light, electrical erasable ones (EEPROM). These devices allow the user to blow them with programs and re-program if incorrect. As engineers we will often use the EPROM version, the pinning details are shown below
The internal structure of the EPROM is similar the SRAM, but does not require a write pin; it employs light sensitive fuses to hold the data.
The actual device has a window in it, this enables the device to be cleaned using UV light, usually this window is covered up to prevent slow eraser by normal light.
Which device changes from serial data to parallel data ? Ans. Demultiplexer is the device that changes from serial data to parallel data. Demultiplexer takes data in from on
What is a Development class? Related objects from the ABAP/4 repository are assigned to the similar development class. This enables you to right and transport related objects
how can compare alphabates of two words in c programming ?????
Elaborate the memory devices - Semiconductor memory All of the memory used as main store in a modern computer is applied as semiconductors fabricated on wafers of silicon. Sem
A computer system with 16K of memory, a Memory Management Unit with a page size of 2000, and the following page translation table : Logical Address Physical Start 0000
How is a valid user identifier accomplished? A valid user identifier is accomplished within one or more of given ways: • Provide some password, which only user knows. • P
How will you form an 8 bit adder using 2 four bit adder IC's 7483? Ans: 4 bit adder IC is IC 7483. This has two four bit data inputs and output carry, 4 bit data output carr
Differentiate between message switching, packet switching and circuit switching Message switching: Recourse computer sends data to switching office that stores the data in
In which page replacement policies Balady’s anomaly occurs? FIFO that is First in First Out.
What are the types of Smart cards used in e-commerce? Generally there are 2 types of smart cards. Memory smart cards, which can be sighted as minuscule removable read/ write
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