riistvara-selftest3.txt

riistvara-selftest3.txt

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What is a steps of instruction cycle?


Vali üks või enam:


a. Execute the instruction 

b. Fetch the instruction 

c. Encode the instruction 

d. Read the operands 

e. Compare the result 




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Fetch the instruction
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Read the operands
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Execute the instruction
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Küsimus 2

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The states of the three-state logic


Vali üks või enam:


a. allows an output port to assume a high impedance state in addition to the 0 and 1 logic levels, effectively removing the output from the circuit. 

b. allows  to control external circuitry that requires a higher voltage 

c. allows to connect multiple circuits that share the same output lines 

d. allows to connect different families of devices that have different operating logic voltage levels 




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allows an output port to assume a high impedance state in addition to the 0 and 1 logic levels, effectively removing the output from the circuit.
, 
allows to connect multiple circuits that share the same output lines
.


Küsimus 3

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What is the options of von Neumann architecture?


Vali üks või enam:


a. a processor 

b. a single system bus 

c. a bus for instructions 

d. input and output devices 

e. a memory to store data 




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a processor
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input and output devices
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a single system bus
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Küsimus 4

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The total amount of time (t) required to execute a program is

    t = N * C / f

where

    N is the number of instructions.

    f is the clock frequency in cycles per second.

    C is the average cycles per instruction (CPI).


Vali üks või enam:


a. RISC tries to reduce the number of instructions for a program 

b. CISC and RISC try to increase the clock frequency in cycles per second 

c. CISC tries to reduce the number of instructions for a program 

d. RISC tries to reduce the cycles per instruction 

e. CISC tries to reduce the cycles per instruction 




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CISC tries to reduce the number of instructions for a program
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RISC tries to reduce the cycles per instruction
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Küsimus 5

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What is the options of Harvard architecture?


Vali üks või enam:


a. a processor 

b. a single system bus 

c. input and output devices 

d. a memory to store both data and instructions 

e. a memory to store instructions 




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a processor
, 
input and output devices
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a memory to store instructions
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Küsimus 6

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Reduced instruction set computing means that


Vali üks või enam:


a. A lot of data types in hardware 

b. A lot of instruction isn't a problem 

c. Simple instruction set - only simple, basic instructions 

d. 1 machine-cycle instructions 

e. high-level instructions - map directly from high-level languages 




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Simple instruction set - only simple, basic instructions
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A lot of instruction isn't a problem
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1 machine-cycle instructions
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Küsimus 7

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Complex instruction set computing means that


Vali üks või enam:


a. 1 machine-cycle instructions 

b. Same length instructions - may be fetched in a single operation 

c. Few data types in hardware 

d. A lot of instruction is a big problem 

e. "rich" instructions - add more functionality into each instruction 




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A lot of instruction is a big problem
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"rich" instructions - add more functionality into each instruction
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Küsimus 8

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Microcontroller is ...


Vali üks:


a. a small computer on a single integrated circuit containing a processor core and some input/output devices. 

b. is a small computer on several integrated circuits containing a processor core  and some input/output devices. 

c. is a small computer on several integrated circuits containing a processor core, memory, and some input/output devices. 

d. a small computer  containing a processor core, memory, and some input/output devices. 

e. Microcontroller is a small computer on a single integrated circuit containing a processor core, memory, and some input/output devices. 




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Microcontroller is a small computer on a single integrated circuit containing a processor core, memory, and some input/output devices.
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Küsimus 9

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How to describe von Neumann bottleneck?


Vali üks:


a. Because program memory and data memory cannot be accessed at the same time, processor don't acess data memory at all. 

b. Because memory is slower then processor, data transfer rate between the CPU and memory is much smaller than the rate at which the CPU can work. 

c. Because memory devices are too slow, program memory and data memory cannot be accessed at the same time. 

d. Because program memory and data memory cannot be accessed at the same time, compillaator need to put most of data to programm code. 

e. Because program memory and data memory cannot be accessed at the same time, data transfer rate between the CPU and memory is much smaller than the rate at which the CPU can work. 




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Because program memory and data memory cannot be accessed at the same time, data transfer rate between the CPU and memory is much smaller than the rate at which the CPU can work.
.


Küsimus 10

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What does microcontroller family mean?


Vali üks või enam:


a. Microcontrollers with the same package 

b. Microcontrollers with the same processor but differ memory 

c. Micricontrollers from the same manufacturer 

d. Microcontrollers with the same bus width 

e. Microcontrollers with the same arhitecture but differs input/output devices 




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Microcontrollers with the same arhitecture but differs input/output devices
, 
Microcontrollers with the same processor but differ memory
.