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Rolul si functiile sistemelor de calcul
Rolul si functiile sistemelor de calcul
2.
Which of the following refers to the associative memory?
A. the address of the data is generated by the CPU
B. the address of the data is supplied by the users
C. there is no need for an address i.e. the data is used as an address
D. the data are accessed sequentially
E. None of the above
3.
To avoid the race condition, the number of processes that may be simultaneously inside their critical section is
A. 8
B. 1
C. 16
D. 0
E. None of the above
4.
A system program that combines the separately compiled modules of a program into a form suitable for execution
A. assembler
B. linking loader
C. cross compiler
D. load and go
E. None of the above
5.
Process is
A. program in High level language kept on disk
B. contents of main memory
C. a program in execution
D. a job in secondary memory
E. None of the above
6.
Addressing structure
A. defines the fundamental method of determining effective operand addresses
B. are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
C. performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
D. all of the above
E. None of the above
8.
The strategy of allowing processes that are logically runnable to be temporarily suspended is called
A. preemptive scheduling
B. non preemptive scheduling
C. shortest job first
D. first come first served
E. None of the above
7.
The Memory Buffer Register (MBR)
A. is a hardware memory device which denotes the location of the current instruction being executed.
B. is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
C. contains the address of the memory location that is to be read from or stored into.
D. contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
E. None of the above
Quizes
Prin definitie, un calculator este o masina care stie sa modeleze si sa manipuleze informatia. El poate prelucra foarte usor, intr-un timp extrem de scurt, cu foarte mare acuratete, o mare cantitate de informatie foarte complexa.
Informatia elementara se numeste bit.
bit=informatie elementara=cifra binara
Octetul este o unitatea de masura a informatiei
1 Kbyte=1 Koctet=2^10 octeti=1024 octeti
1 Moctet=2^10 Kocteti=1024 Kocteti=2^20 octeti
1 Goctet=2^10 Mocteti=2^20 Kocteti=2^30 octeti
Informatia
Calculator
Informatia este un mesaj care inlatura necunoasterea unui anumit eveniment
Componenta formata din programele destinate sa asigure conducerea si controlul procesului de prelucrare precum si efectuarea unor lucrari curente
Componenta formata din echipamentele fizice in care circula prelucrarea automata a informatiei si din echipamentele care asigura comunicarea intre om si calculator
Date de intrare
Date de iesire
Data este reprezentarea nformatiei in interiorul calculatorului
Calculator
Program