Computer Hardware and Software Basics

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Questions and Answers

How does increasing the number of cores in a processor most significantly enhance computational capabilities?

It reduces the thermal output of the processor, leading to improved energy efficiency and quieter operation.
It increases the amount of cache memory available to the processor, thereby speeding up data access times for frequently used instructions.
It allows the processor to operate at higher clock speeds, thereby reducing the time taken for each instruction.
It enables true parallel processing, allowing the system to perform multiple tasks simultaneously without significant performance degradation. (correct)

If a computer's RAM is described as 'volatile,' what is the most accurate implication of this characteristic during operation?

The RAM operates at a variable speed, adjusting its performance based on the demands of the running applications.
The RAM requires a constant power supply to maintain the integrity of the stored data; otherwise, the data is lost. (correct)
The data stored in RAM is automatically backed up to a secondary storage device in real-time.
The RAM is highly resistant to physical damage and data corruption from electromagnetic interference.

What role does the chipset play on a motherboard?

It stores the BIOS firmware, which contains the instructions for booting the computer and performing system diagnostics.
It manages data flow between the processor, memory, and peripherals, acting as a central communication hub. (correct)
It provides a direct interface for connecting external peripherals such as printers and scanners.
It regulates the power distribution across the motherboard, ensuring stable voltage levels for all components.

Why is it necessary for a computer power supply to convert alternating current (AC) to direct current (DC)?

Because the internal components of a computer, such as processors and circuit boards, require DC power to operate. (D) Signup and view all the answers

A computer's graphics card contains its own dedicated memory. What is the primary benefit of this design?

It allows the graphics card to process and render images more quickly by providing fast, local access to graphical data. (A) Signup and view all the answers

What is the correct relationship between megahertz (MHz) and gigahertz (GHz) in the context of processor speed?

1 GHz is equal to 1,000 MHz (D) Signup and view all the answers

If a computer's power supply is rated at 500W, what does this rating primarily indicate?

The maximum amount of power the supply can deliver to the computer's components. (D) Signup and view all the answers

How might insufficient RAM (Random Access Memory) most directly impact the performance of a computer when running resource-intensive applications?

It forces the operating system to use the hard drive as virtual memory, significantly slowing down processing speed. (B) Signup and view all the answers

What is the role of ports located on the front of a computer chassis, as opposed to those at the rear?

Front ports provide convenient access for frequently used peripherals, while rear ports are typically for devices that remain connected. (A) Signup and view all the answers

Which of the following is the primary function of the AGP or PCI-Express connector on a graphics card?

To connect the graphics card to the motherboard, enabling communication with the CPU and memory. (A) Signup and view all the answers

Considering the roles of hardware and software, which scenario exemplifies the interdependence required for a computer system to function effectively?

A high-end graphics card is installed, but the system lacks the necessary drivers to interface with the operating system. (A) Signup and view all the answers

How could the absence of a critical system software component most severely impact a computer's operation?

Rendering the computer unable to boot or recognize hardware, effectively halting all operations. (B) Signup and view all the answers

What is a key distinction in functionality between inkjet printers and plotters, especially in technical or design applications?

Inkjet printers are suited for high-resolution text documents, while plotters are specifically designed for printing large-format vector graphics. (C) Signup and view all the answers

What inherent design aspect of the processor most directly contributes to its ability to manage and execute a wide array of computer functions efficiently?

Its integrated circuit (IC) architecture that enables rapid switching between different processing tasks. (C) Signup and view all the answers

A computer technician is troubleshooting a system that powers on but displays no output. Knowing typical system unit devices, what is the most strategic first step?

Reseat the graphics card and check the monitor connection to ensure a proper video signal. (D) Signup and view all the answers

Which of the following statements accurately describes the relationship between screen resolution and the number of pixels?

Screen resolution defines the number of pixels displayed on a screen; higher resolutions mean a greater number of pixels and more detail. (B) Signup and view all the answers

How does the physical separation of peripherals from the system unit enhance the overall versatility and adaptability of a computer system?

By allowing users to upgrade or replace individual components without affecting the entire system. (A) Signup and view all the answers

What is the key distinction between host-powered and mains-powered external hard drives?

Host-powered drives receive their power from the USB port, whereas mains-powered drives require an external power source. (D) Signup and view all the answers

Imagine a scenario where a design firm needs to produce very detailed and large architectural blueprints. Which output device would be most suitable?

A high-resolution plotter capable of handling A1 or A0 paper sizes, ensuring precision and scale. (C) Signup and view all the answers

What advantage does a rubber keyboard offer over a traditional keyboard, particularly for frequent computer users?

Rubber keyboards may reduce the risk of Repetitive Strain Injury (RSI) compared to traditional keyboards. (D) Signup and view all the answers

If a computer system slows down, which hardware component is most likely to be the bottleneck, assuming software is optimized?

The RAM is insufficient, causing the system to rely heavily on slower virtual memory on the hard drive. (A) Signup and view all the answers

Given advancements in display technology, why are CRT (Cathode Ray Tube) monitors now considered rare and as expensive as LCD monitors?

LCDs have become the standard due to their superior image quality, reduced size and weight, and lower power consumption, leading to decreased CRT production and increased rarity. (B) Signup and view all the answers

How does the design and choice of materials in a system unit promote the reliability and longevity of internal components under varying environmental conditions?

By ensuring proper airflow and heat dissipation to prevent overheating and component degradation. (D) Signup and view all the answers

In what scenario would utilizing a plotter over a standard printer give an advantage, relative to design and output?

Creating high complex, detailed designs that need to be kept in vector format. (A) Signup and view all the answers

Considering the evolution of memory technology in graphics cards, what benefit does DDR3 memory provide compared to its predecessors?

DDR3 memory enables faster data transfer rates, improving the graphics card's performance. (C) Signup and view all the answers

If a computer has both a DVI connector and a VGA connector, under what circumstances might you choose to use the VGA connector over the DVI connector for connecting a monitor?

When connecting to an older, analogue monitor that lacks a DVI input. (C) Signup and view all the answers

In the context of computer keyboards, how do alternative keyboard layouts like Dvorak or AZERTY differ from the standard QWERTY layout, and what is a potential reason for using them?

Alternative layouts are designed to improve typing ergonomics and efficiency by placing frequently used keys in more accessible positions, potentially increasing typing speed and reducing strain . (B) Signup and view all the answers

Considering the design and functionality of a ball mouse, what inherent limitation exists compared to more modern optical or laser mice?

Ball mice are less accurate due to their reliance on mechanical parts that can accumulate dirt and wear down, leading to less precise cursor movement . (A) Signup and view all the answers

How does the functionality of a card reader enhance the usability of digital cameras in conjunction with a computer system?

Card readers enable the transfer of photos and other data from various digital camera memory cards to a computer, streamlining the process compared to direct camera connections. (C) Signup and view all the answers

A photograph has dimensions of 4000 pixels wide by 3000 pixels high. Calculate the total number of pixels in the photograph and then calculate the screen resolution that it most closely matches.

12,000,000 pixels; exceeds all common screen resolutions mentioned. (B) Signup and view all the answers

Flashcards

Hardware

Electronic and mechanical equipment in a computer.

Software

Computer programs that perform tasks on a computer system.