1.
Jenis-jenis sistem bilangan digital adalah sebagai berikut, kecuali...
Correct Answer
B. Oktal, Prima
Explanation
The given question asks for the exception among the types of digital number systems. The correct answer is "Oktal, Prima". This is because "Oktal" and "Prima" are both valid types of digital number systems, while the other options (Desimal, Biner; Biner, Oktal; Hexadesimal, Oktal) are all valid combinations of digital number systems.
2.
Pernyataan dibawah ini adalah benar, kecuali...
Correct Answer
C. Bilangan dasar desimal adalah 1,2,3,4,5,6,7,8,9
Explanation
The correct answer is "Bilangan dasar desimal adalah 1,2,3,4,5,6,7,8,9." This statement is incorrect because the basic decimal numbers include 0 as well, making the correct statement "Bilangan dasar desimal adalah 0,1,2,3,4,5,6,7,8,9."
3.
“Dibagi 2 pada setiap bit. Jika habis, maka hasilnya 0. Namun jika bersisa, maka hasilnya 1.” Adalah pernyataan dari...
Correct Answer
A. Desimal ke Biner
Explanation
The given statement describes the process of converting decimal numbers to binary. It states that each bit is divided by 2, and if the division is exact (no remainder), the result is 0. If there is a remainder, the result is 1. This process is used in converting decimal numbers to their binary representation.
4.
350_{(10) = ________ }_{(8)}
Correct Answer
536
Explanation
The given equation states that 350 in base 10 is equal to an unknown number in base 8. To find the unknown number, we convert 350 from base 10 to base 8. When we convert 350 to base 8, we get the number 536. Therefore, the correct answer is 536.
5.
237_{(8) }= _________{(2)}
Correct Answer
10011111
Explanation
The given expression 237(8) represents the number 237 in base 8 or octal system. To convert it to base 2 or binary system, each octal digit is replaced by its equivalent 3-digit binary representation. The octal digit 2 is equivalent to 010 in binary, 3 is equivalent to 011, and 7 is equivalent to 111. Therefore, the number 237(8) is equal to 10011111(2) in binary.
6.
Yang termasuk kedalam gerbang logika dasar adalah
Correct Answer
B. AND, OR, NOT
Explanation
The basic logic gates are fundamental building blocks in digital circuits. The AND gate outputs true only when all of its inputs are true. The OR gate outputs true when at least one of its inputs is true. The NOT gate outputs the inverse of its input. Therefore, the combination of AND, OR, and NOT gates covers the basic operations required for logical operations in digital circuits.
7.
Berdasarkan tabel disamping, merupakan tabel kebenaran dari Gerbang...
Correct Answer
D. AND
Explanation
The given truth table represents the truth table for the AND gate. In an AND gate, the output is true only when both of its inputs are true. Looking at the table, we can see that the output is true (1) only when both input A and input B are true (1) in all the rows. Therefore, the correct answer is AND.
8.
Berdasarkan tabel disamping, merupakan tabel kebenaran dari Gerbang...
Correct Answer
A. NAND
Explanation
Based on the truth table provided, it can be observed that the output of the gate is only true (1) when both of its inputs are false (0). This behavior is characteristic of a NAND gate, which produces an output that is the negation of the logical AND operation. Therefore, the correct answer is NAND.
9.
Yang tidak termasuk kedalam gerbang logika lanjutan adalah...
Correct Answer
A. NOT
Explanation
The given options represent different logic gates. NOT is a basic logic gate that takes an input and gives the opposite output. The other options (NOR, EX-OR, NAND) are all advanced logic gates that combine multiple inputs to produce an output based on specific logical conditions. Therefore, NOT is the only option that does not belong to the category of advanced logic gates.
10.
Prinsip dari sebuah gerbang NOT pada dasarnya adalah...
Correct Answer
C. Rangkaian Inverter
Explanation
The correct answer is "Rangkaian Inverter". An inverter circuit is a type of logic gate that takes an input signal and produces an output signal that is the opposite of the input. It is commonly represented by a triangle with a small circle at the input side. The function of an inverter is to convert a logic level from high to low or from low to high. Therefore, an inverter circuit is also known as a NOT gate.
11.
Jika salah satu atau kedua inputnya bernilai 0 maka outputnya bernilai 1 adalah prinsip dari gerbang
Correct Answer
A. NAND
Explanation
The given statement states that if either one or both of the inputs are 0, then the output will be 1. This is the principle of a NAND gate. A NAND gate is a logic gate that produces an output of 0 only when all of its inputs are 1, and produces an output of 1 for all other input combinations. Therefore, the given statement aligns with the behavior of a NAND gate.
12.
Yang tidak termasuk kedalam rangkaian kombinasional adalah...
Correct Answer
A. Rangkaian Decoder, Encoder, Flip-Flop
Explanation
The correct answer is "Rangkaian Decoder, Encoder, Flip-Flop". The reason is that a flip-flop is a sequential circuit, not a combinational circuit. Combinational circuits produce output based solely on the current input, whereas sequential circuits also take into account the previous state. Therefore, a flip-flop does not belong in a list of combinational circuits. The other options all consist of combinational circuits only.
13.
Rangkaian yang mempunyai dua buah output yang selalu berada dalam kondisi berlawanan (Q) dan (Q') adalah
Correct Answer
B. Rangkaian Flip-Flop
Explanation
A flip-flop is a circuit that has two outputs, Q and Q', which are always in opposite states. When the input signal triggers a change, the output Q will switch to its opposite state while Q' will switch to the same state as Q. This characteristic of flip-flops makes them suitable for storing and synchronizing data in digital systems. In contrast, a demultiplexer is a circuit that has multiple outputs but they are not necessarily in opposite states. An inverter is a circuit that has only one output that is the opposite of its input. A decoder is a circuit that has multiple outputs but they are not necessarily in opposite states.
14.
Perhatikan gambar rangkaian tersebut! Rangkaian logika tersebut adalah...
Correct Answer
A. Rangkaian RS Flip-Flop
Explanation
The given circuit is an RS Flip-Flop.
15.
Berapakah nilai A,B,C,D?
Correct Answer
A. 0,0,1,1
Explanation
The answer 0,0,1,1 represents the values of A, B, C, and D respectively. A and B are both 0, while C and D are both 1.
16.
Jika pada keluaran Rangkaian Flip-Flop (Q) = (Q') = 1, maka berada pada mode
Correct Answer
D. Terlarang
Explanation
If the output of the Flip-Flop circuit (Q) = (Q') = 1, it means that both the output and its complement are high. In a Flip-Flop, this condition is not allowed because it violates the fundamental behavior of a Flip-Flop. In a Flip-Flop, the output and its complement should always be opposite to each other. Therefore, if both Q and Q' are high, it is considered an invalid state and is referred to as "Terlarang" or forbidden.
17.
Berdasarkan Aturan 13 Reduksi Boolean, persamaan (A.B)' menjadi
Correct Answer
A. A'.B'
Explanation
The correct answer is A'.B'. According to Boolean reduction rule 13, the complement of a product term (A.B)' is equal to the sum of the complements of the individual variables, which is A'.B'.
18.
Berdasarkan Aturan 10 Reduksi Boolean, persamaan A + A'.B menjadi...
Correct Answer
B. A+B
Explanation
Based on the 10 Boolean Reduction Rules, the equation A + A'.B can be simplified to A + B. In this equation, A' represents the complement of A, and B remains unchanged. The rule states that when there is a term A + A', the term A can be eliminated, resulting in just B. Therefore, the correct answer is A + B.
19.
Lengkapilah tabel dibawah ini secara berturut-turut sesuai kondisi.
Kondisi: Nilai Output akan bernilai 1, jika mayoritas input bernilai 1.
A
B
C
Y
Produk Fundamental
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Correct Answer
A. A'BC, AB'C, ABC', ABC
Explanation
The correct answer is A'BC, AB'C, ABC', ABC. This is because the condition states that the output will be 1 if the majority of the inputs are 1. In the given table, for each row, we can determine the output by counting the number of 1's in the inputs. If there are more 1's than 0's, the output will be 1. Therefore, in the first row, there are no 1's, so the output is 0. In the second row, there is one 1, so the output is 0. In the third row, there is one 1, so the output is 0. In the fourth row, there are two 1's, so the output is 1. This pattern continues for the remaining rows, resulting in the answer A'BC, AB'C, ABC', ABC.
20.
Apakah pernyataanbenar?
Correct Answer
A. True
Explanation
The given question is asking if the statement is true or not. The answer provided is "True," indicating that the statement is indeed correct.
21.
Pernyataan yang tidak sesuai dengan Sistem Bilangan adalah...
Correct Answer
D. Hexadesimal dan Prima termasuk sistem bilangan digital
Explanation
The statement "Hexadesimal dan Prima termasuk sistem bilangan digital" is incorrect. Hexadecimal is a base-16 number system, while prime numbers are a concept in mathematics. Both of them are not directly related to the digital number system.
22.
_{4F5(10) = ________ }_{(8)}
Correct Answer
2365
Explanation
The given question is asking for the value of 4F5 in base 10, when converted to base 8. The answer is 2365, which means that when the hexadecimal number 4F5 is converted to decimal (base 10), and then converted to octal (base 8), it becomes 2365.
23.
10101011_{(2) }= _________{(8)}
Correct Answer
253
Explanation
The given question asks for the octal representation of the binary number 10101011. To convert a binary number to octal, we group the binary digits into sets of three from right to left. In this case, we have 101 010 11. Each group is then converted to its corresponding octal digit. The octal representation of 101 is 5, 010 is 2, and 11 is 3. Therefore, the octal representation of 10101011 is 523. However, the given answer is 253, which is incorrect.
24.
“Dibagi 16 pada setiap angka, jika bersisa maka akan menjadi hasil.” Adalah pernyataan dari...
Correct Answer
A. Desimal ke Hexadesimal
Explanation
The statement "Dibagi 16 pada setiap angka, jika bersisa maka akan menjadi hasil" refers to the process of converting decimal numbers to hexadecimal numbers. In this process, each digit of the decimal number is divided by 16, and if there is a remainder, it becomes a part of the hexadecimal representation. Therefore, the correct answer is "Desimal ke Hexadesimal."
25.
Yang termasuk kedalam gerbang logika lanjutan adalah
Correct Answer
B. NAND,NOR,NOR
Explanation
The correct answer is NAND, NOR, NOR. NAND and NOR are advanced logic gates that can be used to create other logic gates such as AND, OR, and NOT. They are called universal gates because any logic function can be implemented using only NAND or only NOR gates. The inclusion of two NOR gates in the answer suggests that it is a more advanced combination compared to the other options.
26.
Rangkaian yang level logika keluarannya tergantung pada kombinasi dari level logika masukannya dan tidak memiliki memori adalah...
Correct Answer
D. Rangkaian Kombinasional
Explanation
A "Rangkaian Kombinasional" is a logic circuit whose output depends solely on the combination of its input logic levels at any given moment. It does not have any memory elements, such as flip-flops, that can store information. Therefore, the output of a combinational circuit is determined only by the current input values and does not rely on any past inputs or outputs.
27.
Rangkaian yang kondisi keluarannya dipengaruhi oleh kondisi masukan dan keadaan keluaran sebelumnya atau dapat juga dikatakan rangkaian yang bekerja berdasarkan urutan waktu adalah...
Correct Answer
A. Rangkaian Sekuensial
Explanation
A sequential circuit is a circuit whose output is influenced by both the input conditions and the previous output state. It operates based on the sequence of events or the order of time. In contrast, a combinational circuit only depends on the current input conditions and does not have any memory of previous outputs. An inverter is a basic logic gate that simply changes the input signal to its opposite state. A flip-flop is a type of sequential circuit that stores a single bit of data and can change its output based on a clock signal. Therefore, the correct answer is "Rangkaian Sekuensial" or sequential circuit.