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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.
Elaborate protected mode memory addressing in brief. Protected mode interrupt: In protected mode, interrupts have exactly the same assignments as in real mode though int
Microprocessor development system Computer systems have undergone many changes recently. Machines that once filled large areas have been reduced to small desktop computer syste
Q. How to Changing the Directory in DOS? You can change the directory. After changing the directory, the new directory becomes the default directory. For example, you change th
Prove the following Boolean identities using the laws of Boolean algebra (A + B)(A + C) = A + BC Ans. (A+B)(A+C)=A+BC LHS AA+AC+AB+BC=A+AC+AB+BC OR A((C+1)+A(B+1))+BC
What is the function of the correction system? The correction system handles changes to internal system components. Like as objects of the ABAP/4 Dictionary.
What is control word? A control word is a word whose individual bits show the various control signals.
The hybrid models are mostly tailormade models suiting to exact applications. Actually these fall in the category of mixed models. Such type of application-oriented models keep cro
Diffrentiate programming tools and authoring tools Distinction between programming tools and authoring tools is not at first obvious. Though, authoring tools require less techn
Common Functions of Interrupts: An Interrupt transfers control to the interrupt service routine, generally through the interrupt vector table, which contains the addresses
Q. Explain Passing Parameters Using Pointers ? This method overcomes the drawback of using variable names directly in procedure. It uses registers to pass procedure pointers to
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