Computer Science MCQs – Page 11 (Q101-110)

Automation is correctly identified as the characteristic describing a computer's ability to carry out tasks on its own once a process has been started, without requiring continuous human intervention at every step. This differs from speed, which measures how fast operations are performed, and from accuracy, which measures correctness of results. Automation underlies everything from a scheduled antivirus scan to an industrial robot arm executing a pre-programmed sequence, and it is a key reason computers are so valuable for repetitive or large-scale tasks. Advances in scripting, macros, and artificial intelligence continue to expand what can be automated without ongoing human oversight.

Storage capacity correctly describes a computer's ability to hold vast amounts of data for later retrieval, whether in RAM for temporary use or on hard drives and SSDs for long-term storage. This characteristic has grown enormously over computing history, from kilobytes on early punch cards to terabytes on consumer hard drives today, driven by advances in magnetic and flash memory technology. Storage capacity is distinct from processing speed, since a device can store huge amounts of data without necessarily processing it quickly. Cloud storage services have further extended this characteristic by letting users store data remotely on provider-managed servers rather than only on local devices.

Diligence is correctly identified as the characteristic describing a computer's ability to perform the same task repeatedly, for as long as needed, without becoming tired, bored, or careless the way a human worker eventually would. This makes computers especially well-suited to repetitive, high-volume work like data entry, quality control checks, or running the same calculation millions of times without a drop in performance. Diligence works alongside accuracy, since a fatigue-free machine is also less prone to the careless mistakes that human tiredness can cause. This tireless consistency is one of the main reasons businesses automate repetitive processes using computers rather than relying solely on manual labor.

Versatility is correctly identified as the characteristic describing a computer's ability to perform a wide variety of different tasks, from word processing and gaming to scientific simulation and video editing, simply by running different software. This general-purpose nature distinguishes computers from single-function devices like a calculator or a washing machine, which are hardwired to do only one job. Versatility stems directly from the stored-program concept, where the same hardware can execute entirely different sets of instructions depending on which program is loaded. This flexibility is a major reason computers have become indispensable across nearly every industry and aspect of daily life.

Lack of intelligence, often abbreviated as lack of IQ, is correctly identified as the characteristic acknowledging that a computer cannot think independently, exercise judgment, or feel emotions on its own, and can only do what it is explicitly instructed to do through its programming. Even sophisticated artificial intelligence systems that appear to 'reason' are ultimately following complex statistical patterns learned from data, not genuine understanding or consciousness. This limitation means computers rely entirely on human programmers to define correct behavior and to catch errors in logic or judgment. Recognizing this distinction is important for understanding both the power and the boundaries of what current computing technology can responsibly be trusted to do.

Hanging, also called freezing or 'not responding,' is correctly defined as the state in which a running program stops responding to user input, often because it is stuck in a loop, waiting on an unavailable resource, or overwhelmed by demand on system memory or the CPU. When an application hangs, the operating system may display a 'Not Responding' message, and users often need to wait, force-close the program via a task manager, or restart the system to recover. Hanging differs from a crash, since a hung program is still technically running but unresponsive, whereas a crashed program has actually terminated unexpectedly. Frequent hanging can indicate insufficient system resources, buggy software, or corrupted files needing repair.

A crash is correctly defined as an unexpected failure that causes a program or the entire operating system to stop working, often closing abruptly or displaying an error message, in contrast to a normal, intentional shutdown. Crashes can result from software bugs, memory conflicts, corrupted files, incompatible drivers, or hardware failures, and they sometimes cause unsaved work to be lost. Operating systems often generate crash logs or error reports, such as Windows' 'Blue Screen of Death,' to help diagnose the underlying cause. Regularly saving work, keeping software updated, and maintaining reliable hardware are common ways users try to minimize the risk and impact of crashes.

Lag is correctly defined as a noticeable delay between a user's input, such as a mouse click or key press, and the system's corresponding response, commonly experienced during online gaming, video calls, or when a computer is overloaded. Lag can stem from network latency, insufficient processing power, overloaded RAM, or bottlenecks in graphics rendering, and it is distinct from a crash or hang since the system is still functioning, just slowly. In networked applications, lag is often measured in milliseconds of latency between a device and a remote server. Reducing lag typically involves upgrading hardware, closing background applications, or improving network connection quality, such as switching from Wi-Fi to a wired connection.

Plug and play is correctly defined as a feature allowing a hardware device to be automatically detected and configured by the operating system as soon as it is connected, without requiring the user to manually install drivers or adjust settings. This standard, widely adopted since the 1990s, greatly simplified adding peripherals like USB flash drives, printers, and mice, since the OS locates or installs the appropriate driver automatically. Before plug and play became standard, users often had to manually configure hardware settings like interrupt requests (IRQs), a tedious and error-prone process. Today, most consumer hardware is designed to be plug and play compatible, making device setup nearly effortless for everyday users.

A driver is correctly defined as a piece of software that allows the operating system to communicate with and control a specific piece of hardware, translating general OS commands into the specific instructions a device understands. Every hardware component, from printers and graphics cards to keyboards and network adapters, typically requires an appropriate driver to function correctly with a given operating system. Outdated or missing drivers are a common cause of hardware malfunctioning or performing below its potential, which is why manufacturers regularly release driver updates. Modern operating systems often include large libraries of built-in drivers and can also download updated ones automatically from the internet.