Computers and Technology, 02.01.2021 14:00 g0606997
1. Ce este o baza de date? (1p)
2. Ce este un sistem de gestiune al bazelor de date?(1p)
3. Dati exemple de 4 campuri care pot fi incluse intr-un tabel care contine informatii despre angajatii unei firme.(1p)
4. Ce este o interogare Access?(2p)
3. Explicati modul in care poate fi actualizata o baza de date Access.(4p)
Answers: 1
Computers and Technology, 23.06.2019 17:30
When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?
Answers: 2
Computers and Technology, 24.06.2019 00:10
Read each statement below. if the statement describes a peer-to-peer network, put a p next to it. if the statement describes a server-based network, put an s next to it. p - peer-to-peer s - server-based
Answers: 1
Computers and Technology, 24.06.2019 20:20
3. write assignment statements that perform the following operations with the variables a, b, and c: a. adds 2 to a and assigns the result to b b. multiplies b times 4 and assigns the result to a c. divides a by 3.14 and assigns the result to b
Answers: 2
Computers and Technology, 25.06.2019 08:30
Which of these devices is usually the default for most home network?
Answers: 1
1. Ce este o baza de date? (1p)
2. Ce este un sistem de gestiune al bazelor de date?(1p)
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