1.
There are _____ main types of memory.
Correct Answer
B. 2
Explanation
The correct answer is 2 because there are two main types of memory: short-term memory and long-term memory. Short-term memory is responsible for temporarily holding information in our minds, while long-term memory is responsible for storing information for a longer period of time. These two types of memory work together to help us process and remember information.
2.
An example of an input device is:
Correct Answer
A. Keyboard
Explanation
An example of an input device is a keyboard because it allows the user to input data and commands into a computer system by pressing keys. The keyboard is a common input device used for typing, entering commands, and navigating through various applications and programs. It is an essential tool for communication and interaction with a computer.
3.
Computers only function by doing _______________.
Correct Answer
C. Math
Explanation
Computers only function by performing mathematical operations. From basic arithmetic to complex calculations, computers rely on mathematical algorithms to process and manipulate data. Whether it is solving equations, calculating probabilities, or performing statistical analysis, math is an essential component of computer functioning. Without math, computers would not be able to perform tasks such as calculations, data analysis, simulations, and many other functions that are integral to their operation.
4.
The microprocessor is the main part of the computer?
Correct Answer
A. True
Explanation
The microprocessor is indeed the main part of the computer as it serves as the central processing unit (CPU) that performs most of the calculations and tasks required for the computer to function. It is responsible for executing instructions, performing arithmetic and logical operations, and managing the flow of data within the computer system. Without a microprocessor, a computer would not be able to carry out its essential functions, making it the most crucial component of the computer.
5.
RAM is a type of ____________________________.
Correct Answer
D. Memory
Explanation
RAM stands for Random Access Memory, which is a type of memory used in computers. It is a volatile memory that allows the computer to store and access data quickly. Unlike other types of memory such as hard drives, RAM is temporary and is cleared when the computer is turned off. Therefore, the correct answer is "Memory".
6.
Computers think like a human brain.
Correct Answer
B. False
Explanation
Computers do not think like a human brain. While computers are designed to perform complex calculations and process information quickly, their functioning is based on algorithms and logical operations. They do not possess consciousness, emotions, or the ability to think and reason like humans do. Therefore, the statement that computers think like a human brain is false.
7.
An example of an output device is:
Correct Answer
C. Printer
Explanation
An example of an output device is a printer. A printer is a peripheral device that allows users to produce hard copies of documents or images from a computer. It receives electronic data from the computer and transfers it onto paper or other physical media. This makes it an output device as it provides information or results from the computer system to the user in a tangible form.
8.
____________________ tells the microprocessor what to do.
Correct Answer
B. Software
Explanation
Software is the correct answer because it refers to the programs and instructions that are loaded onto the microprocessor to carry out specific tasks. The microprocessor relies on software to receive input, process data, and generate output. Without software, the microprocessor would not know what actions to perform.
9.
Computers do math very _________________
Correct Answer
B. Fast
Explanation
Computers are able to perform mathematical calculations at a very high speed due to their ability to process data quickly and efficiently. They can execute complex algorithms and perform calculations in a fraction of a second, which would take humans a significant amount of time. This speed is attributed to the electronic components and advanced processors used in computers, allowing them to handle large amounts of data and perform calculations rapidly. Therefore, the correct answer is "Fast".
10.
There are _______ steps of a microprocessor.
Correct Answer
B. Three
Explanation
A microprocessor typically consists of three main steps: fetch, decode, and execute. In the fetch step, the microprocessor retrieves the next instruction from memory. In the decode step, it interprets the instruction and determines the necessary actions. Finally, in the execute step, the microprocessor performs the desired operation or calculation based on the decoded instruction. These three steps are essential for the functioning of a microprocessor and form the basic cycle of its operation.
11.
The first step of a microprocessor is ______________.
Correct Answer
C. Fetch
Explanation
The first step of a microprocessor is the fetch stage. During this stage, the microprocessor retrieves instructions from memory. It fetches the next instruction in the program and prepares it for execution. This is an essential step in the instruction cycle of a microprocessor, as it ensures that the processor has the necessary instructions to perform its tasks.
12.
The second step of a microprocessor is _____________________.
Correct Answer
D. Decode
Explanation
The second step of a microprocessor is "Decode". After the instruction is fetched from memory in the first step, the microprocessor needs to decode the instruction to determine what operation needs to be performed. This involves interpreting the binary code of the instruction and identifying the specific operation and operands involved. The decoding process prepares the microprocessor for the next step, which is executing the instruction.
13.
The third step of a microprocessor is ____________________.
Correct Answer
A. Execute
Explanation
The third step of a microprocessor is "Execute". After the previous steps of fetching and decoding the instruction, the microprocessor executes the instruction by performing the necessary operations. This step involves carrying out arithmetic, logical, or control operations based on the instruction received. The execution step is crucial as it determines the actual processing and manipulation of data within the microprocessor, leading to the desired outcome or result.
14.
A microprocessor works millions of times per _________________.
Correct Answer
C. Second
Explanation
A microprocessor is a highly efficient electronic device that performs millions of calculations or instructions per second. It is designed to handle and process data at an incredibly fast rate, making it capable of executing tasks within fractions of a second. Therefore, the correct answer is "second" as it accurately represents the high speed and efficiency of a microprocessor's operations.
15.
A binary code is made up of ___________________.
Correct Answer
D. 0s and 1s
Explanation
A binary code is made up of 0s and 1s because binary is a base-2 numbering system that uses only two digits, 0 and 1, to represent all numbers and characters. Each digit in a binary code is called a bit, and it can be either 0 or 1. This is the fundamental concept behind digital computing, where data is represented and processed using binary code.
16.
Decode decides on the ______________
Correct Answer
A. Math operation
Explanation
Decode decides on the math operation because decoding involves interpreting and translating encoded information into its original form. In the context of this question, decode is likely referring to a process that determines the correct mathematical operation to be performed on a given set of data or instructions. The other options such as spelling, software, and output device are not directly related to the concept of decoding in the given context.
17.
Fetch receives the data from the memory/software.
Correct Answer
A. True
Explanation
Fetch is a step in the instruction cycle of a computer processor, where it retrieves instructions or data from memory or software. Therefore, the statement "Fetch receives the data from the memory/software" is true.
18.
What does execute do in the microprocessor?
Correct Answer
C. Does the math
Explanation
The "execute" function in a microprocessor refers to the stage where the actual mathematical operations or instructions are performed. It is responsible for executing the instructions fetched from the software or program. This stage performs arithmetic calculations, logical operations, and other mathematical tasks as specified by the instructions. It is an essential step in the microprocessor's operation as it carries out the intended computations and manipulations on the data.
19.
There are millions of tiny _________________ on a microprocessor.
Correct Answer
B. Transistors
Explanation
A microprocessor is a complex electronic device that consists of millions of transistors. Transistors are the fundamental building blocks of a microprocessor, responsible for controlling the flow of electrical current. They act as switches, allowing or blocking the passage of current based on the input signals received. Without transistors, a microprocessor would not be able to perform its functions, making them an essential component of the device. Therefore, the correct answer is transistors.
20.
A _________ is the smallest unit of digital information.
Correct Answer
B. Bit
Explanation
A bit is the smallest unit of digital information because it represents a binary digit, which can have a value of either 0 or 1. It is the fundamental building block of all digital data and is used to represent and store information in computers and other digital systems. Other options such as pixel, byte, and centimeter do not represent the smallest unit of digital information and are used to measure different aspects in digital systems.
21.
The smallest part of a digital picture is called a ___________.
Correct Answer
D. Pixel
Explanation
A pixel is the smallest part of a digital picture. It represents a single point in an image and is responsible for displaying color and detail. Each pixel contains information about its color and brightness, which collectively create the overall image. Therefore, the correct answer is pixel.
22.
A transistor is made of _________________, a semiconductor.
Correct Answer
B. Silicon
Explanation
A transistor is made of silicon, which is a semiconductor material commonly used in electronic devices. Silicon has unique properties that make it suitable for use in transistors, such as its ability to conduct electricity under certain conditions. Transistors are crucial components in electronic circuits, and they play a vital role in amplifying and switching electrical signals. By using silicon as the base material, transistors can efficiently control the flow of current and perform various functions in electronic devices.
23.
Electrons in a transistor "jump" from the source to the ______________.
Correct Answer
C. Drain
Explanation
In a transistor, electrons "jump" from the source to the drain. The source is responsible for supplying the electrons, while the drain is where the electrons exit the transistor. This flow of electrons from the source to the drain controls the current and voltage in the transistor, allowing it to function as an amplifier or a switch. The gate, on the other hand, controls the flow of electrons by applying a voltage to the semiconductor material, but it does not directly receive the electrons. Software is not relevant to the physical operation of a transistor.
24.
Microprocessors are made in a ______________.
Correct Answer
C. Fab
Explanation
Microprocessors are made in a fab, short for fabrication facility. A fab is a specialized manufacturing plant where the process of creating microprocessors takes place. It involves various complex steps such as designing, etching, and assembling the intricate electronic components that make up a microprocessor. Fabs are equipped with advanced machinery and cleanroom environments to ensure precise and controlled manufacturing conditions.
25.
A fab must be very _______________ to protect the delicate circuits of a microprocessor.
Correct Answer
B. Sterile
Explanation
To protect the delicate circuits of a microprocessor, a fab must be very sterile. This is because any contaminants or particles in the environment can cause damage to the sensitive circuits. A sterile environment ensures that there are no harmful particles or contaminants present, reducing the risk of damage to the microprocessor. Bright, secure, and secret are not relevant in this context and do not contribute to the protection of the microprocessor.