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What are primary keys and foreign keys?
Primary keys are the unique identifiers for every row. They must have unique values and cannot be null. Due to their significance in relational databases, Primary keys are the most fundamental of all keys and constraints. A table can have only one Primary key. Foreign keys are both a method of ensuring data integrity and a manifestation of the relationship among tables.
Register Transfer We assign computer registers by capital letters to denote function of the register. Such as, the register which holds an address for memory unit is usually
How address resolution is performed with table lookup? Explain with the help of a suitable example. The approach of table lookup to address resolution needs a data structure wh
Construction of j-k using 4-bit shift register
Q. Describe about Digital Audio Tape? The most proper tape for backing up data from a disk today is Digital Audio Tape (DAT). It employs a 4mm tape covered in a cartridge. It e
When designing a logic circuit with multipleoutputs it is usual to treat it as several circuitseach with one output. So for our example wewould design three circuits; one with outp
Development of information system must be considered as capital investment: The developer of an information system must think about different solutions of a particular problem and
What is a reference string? An algorithm is evaluated by running it on a exacting string of memory references and computing the number of page faults. The string of memory refe
Q. Explain Integrated Disk Electronics Devices? IDE devices are associated to PC motherboard by a 34-wire ribbon cable. Common drive used today for workstations has capacities
If the input to T-flipflop is 100 Hz signal, the final output of the three T-flipflops in cascade is ? Ans. The final output of the three T-flip-flops in cascade is 12.5 H
Q. How do you classify the neutrons in terms of its kinetic energy? Neutrons are classified as-per to their kinetic energy as (a) Slow neutrons as well as (b) fast neutrons.
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