Question 1

The CPU consists of three parts: the control unit,the ALU unit,and RAM.

Accepted Answer

The CPU consists of the control unit, the arithmetic logic unit (ALU), and registers, not RAM. RAM is a separate component that provides temporary storage for data and instructions that the CPU needs.

Question 2

Microcomputer chips designed to let the operating system divide the work of processing over more than one chip are called multicore processors.

Accepted Answer

Multicore processors are designed to divide the workload of processing over more than one chip.

Question 3

A surge protector provides 5-30 minutes of power backup to a computer when the power goes out.

Accepted Answer

A surge protector only protects against power surges and does not provide any backup power during an outage. A UPS (uninterruptible power supply) is needed for backup power.

Question 4

The system clock enables the computer to "know" what time it is.

Accepted Answer

The answer of The system clock enables the computer to...

Question 5

The motherboard is the computer's main printed circuit board,containing nonremovable components and expansion slots for removable ones.

Accepted Answer

The statement is true. The motherboard is the main circuit board of a computer and contains essential components like the CPU, RAM, and connectors for other peripherals like hard drives, graphics cards, and sound cards. It also has expansion slots where additional components can be added or upgraded.

Question 6

In a computer,logical operations = comparisons.

Accepted Answer

Logical operations often involve comparisons between values, and are used to make decisions based on the comparison result. For example, if one value is greater than another, a particular action may be taken.

Question 7

The part of the CPU that interprets instructions and executes them is the control unit.

Accepted Answer

The control unit of the CPU is responsible for fetching instructions from memory, interpreting them, and then directing the operation of the processor to execute them.

Question 8

The motherboard can also be called the system board.

Accepted Answer

The motherboard can indeed be referred to as the system board.

Question 9

A "spike" in AC voltage can burn out the low-voltage DC circuitry in a computer.

Accepted Answer

A spike in AC voltage can cause a surge of high voltage to enter the low-voltage DC circuitry in a computer, which can damage or burn it out. It is important to use surge protectors or voltage regulators to prevent such damage.

Question 10

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The system unit houses the motherboard,the power supply,and the storage devices.

Accepted Answer

This statement is true. The system unit is the main case of a computer and typically contains the motherboard, power supply, and storage devices such as hard drives and solid-state drives.

Question 11

An opening in a computer tower used for the installation of equipment such as a hard drive is called a port.

Accepted Answer

An opening in a computer tower used for the installation of equipment such as a hard drive is called a drive bay or a disk bay, not a port. A port typically refers to an interface on the back or front of the computer used for connecting external devices such as a mouse, keyboard, or USB drive.

Question 12

Multicore processors are used in microcomputers with more than one motherboard.

Accepted Answer

Multicore processors can be used in microcomputers with a single motherboard, as well as in larger systems with multiple motherboards.

Question 13

The part of the CPU that carries out arithmetic and logical operations is called the ALU.

Accepted Answer

The ALU (Arithmetic Logic Unit) is a component within the CPU that performs arithmetic and logical operations.

Question 14

Most microcomputers use processors made by Intel or Advanced Micro Devices.

Accepted Answer

This statement is true, as Intel and AMD are the two major players in the microprocessor market for personal computers.

Question 15

The surge protector consists of groups of interconnected chips on the motherboard that control the flow of information between the microprocessor and other system components connected to the motherboard.

Accepted Answer

The description of the surge protector is incorrect. The surge protector is an external device that protects electronic devices from power surges and voltage spikes. It does not consist of groups of interconnected chips on the motherboard.

Question 16

The CPU follows the instructions of the motherboard's hardware in order to manipulate data into information.

Accepted Answer

The CPU (Central Processing Unit) follows the instructions from software (programs or the operating system), not directly from the motherboard's hardware, to process data into information. The motherboard facilitates communication between the CPU and other components.

Question 17

The computer's power supply converts AC to DC for the computer to operate.

Accepted Answer

The computer's power supply takes in alternating current (AC) and converts it to direct current (DC) for the computer to use.

Question 18

The number of registers in the ALU and the size of each help determine the power and speed of a CPU.

Accepted Answer

The number and size of registers in the ALU directly impact the performance and capabilities of a CPU, so this statement is true.

Question 19

A multicore processor is necessary for a computer to manipulate 3-D graphics.

Accepted Answer

A multicore processor is not necessary for a computer to manipulate 3-D graphics. While a multicore processor can improve performance, a single-core processor can still handle basic 3-D graphics tasks.

Question 20

Mobile devices such as smartphones use the same processing chips as microcomputers.

Accepted Answer

Mobile devices such as smartphones typically use System on a Chip (SoC) designs that integrate components like the CPU, GPU, and memory on a single chip, which are optimized for power efficiency and size. In contrast, microcomputers often use separate, more powerful processors and components designed for higher performance.

Quiz 4: Hardware: the Cpu and Storage: the Source of Computing Power