Co Sci 201 Extra Credit Quiz

Explanation
Among the given options, the only device that is used for displaying visual output is a monitor. A hard drive is used for storing data, a USB drive is used for transferring data, and a disk can refer to various storage media such as CDs or DVDs. Therefore, the correct answer is "Monitor".

Explanation
The given options are components of a computer system. Out of the provided options, the motherboard is the correct answer. The motherboard is the main circuit board of a computer that connects and allows communication between all the other components, such as the CPU, RAM, and storage devices. It provides power and data connections to these components, making it an essential part of the computer system.

Explanation
The given options are RAM, Processor, PC Slot, and ROM. Out of these options, the correct answer is Processor. The processor is a crucial component of a computer that executes instructions and performs calculations. It is responsible for the overall performance and speed of the computer. Therefore, among the given options, the processor is the correct answer.

Explanation
RAM stands for Random Access Memory and it is a type of computer memory that is used to store data that is being actively used by the computer. It allows the computer to quickly access and retrieve data, which helps in improving the overall performance of the system. RAM is an essential component of a computer as it directly affects the speed and efficiency of the system.

Explanation
Expansion cards are additional hardware components that can be added to a computer system to enhance its functionality or capabilities. They are used to add features such as additional ports, graphics capabilities, or network connectivity to a computer. Expansion cards are typically inserted into slots on the motherboard of a computer and can be easily removed or replaced. This makes them a flexible and convenient way to upgrade or customize a computer system according to specific needs or requirements.

Explanation
The given options are all computer components. Out of these options, the power supply is responsible for providing power to the computer and its various components. It converts the AC power from the wall outlet into DC power that is used by the computer. Therefore, the power supply is the correct answer in this case.

Explanation
The given options are all computer peripherals or components. A mouse is an input device used to interact with the computer. An expansion card is a hardware component that is added to the computer to enhance its functionality. A processor is the central processing unit of the computer responsible for executing instructions. CD Rom is a type of optical disc drive used for reading CDs. Therefore, the correct answer is CD Rom, as it is the only option that represents a specific type of hardware component.

Explanation
A byte is a unit of digital information that consists of 8 bits. It is the basic building block of storage and processing in computer systems. Each byte can represent a single character or a small piece of data. Therefore, the statement "8 bits make a byte" is correct because a byte is composed of 8 bits.

Explanation
Logic bombs are a type of malware that remain dormant until a specific condition is met. Once triggered, they execute malicious actions, such as deleting files or crashing systems. Unlike viruses, worms, and macro viruses, logic bombs do not replicate themselves or spread to other systems. Instead, they are designed to target specific systems and activate at a predetermined time or event. Therefore, logic bombs align with the given statement that viruses attack when certain conditions are met.

Explanation
The correct answer is "All of the above" because the file extensions .xlsx, .docx, and .pptx are all associated with Office 2007/2010 file formats. The .xlsx extension represents an Excel file, .docx represents a Word file, and .pptx represents a PowerPoint file. Therefore, all three options are valid file formats for Office 2007/2010.