Quiz: Computer And Media Studies

The correct answer is vibrating because when a speaker is making a sound, it produces vibrations that create sound waves. These vibrations can be felt or observed by looking at the speaker. The other options, such as being black, not moving at all, or cracked, do not necessarily indicate that the speaker is making a sound.

Sound travels in waves. Sound waves are longitudinal waves, which means that the particles of the medium vibrate back and forth in the same direction as the wave travels. These waves transfer energy from one particle to another, allowing sound to propagate through a medium such as air, water, or solids. The vibrations of the particles create compressions and rarefactions, resulting in the perception of sound by our ears. Therefore, waves is the correct answer as it accurately describes the mechanism by which sound travels.

ROM stands for Read Only Memory, which is a type of computer memory that is non-volatile and cannot be modified or written to. It contains permanent data that is stored during manufacturing and cannot be changed by normal computer operations. This memory is used to store firmware, boot loaders, and other essential system software. Therefore, the statement "ROM stands for Read Only Memory" is true.

Musicians use the word "pitch" to describe frequency. Pitch refers to the perceived highness or lowness of a sound, which is directly related to its frequency. Higher frequencies are perceived as higher pitches, while lower frequencies are perceived as lower pitches. This term is commonly used in music to describe the specific note or tone being played or sung.

RAM is short term memory because it is used to temporarily store data that is actively being used by the computer. It allows for quick access and retrieval of information, but the data is not permanently stored and is lost when the computer is powered off. On the other hand, ROM is long term memory because it stores permanent data that is essential for the computer's operation, such as the BIOS. This data is not lost when the computer is powered off and remains stored for long-term use.

Fast vibrations create a high frequency, while slow vibrations create a low frequency. This is because frequency is determined by the number of vibrations or cycles that occur in a given amount of time. When vibrations occur quickly, more cycles are completed in a given time period, resulting in a higher frequency. Conversely, when vibrations occur slowly, fewer cycles are completed in the same time period, resulting in a lower frequency. Therefore, the statement provided in the question is incorrect.

It's not clear. The file size of a Word document depends on factors such as the amount of text, images, and formatting it contains. If the document is relatively simple with mostly text, it is unlikely to be 30 megabytes. However, if it includes high-resolution images or other rich media, it could potentially be around or even exceed 30 megabytes.

A bit is a binary digit that can have a value of either 1 or 0. In computer systems, information is stored and processed using bits, which represent the most basic units of data. By using combinations of 1s and 0s, computers are able to represent and manipulate various types of data, such as numbers, text, and images. The concept of bits forms the foundation of digital computing and is essential for understanding how computers store and process information.

A gigabyte (GB) is a unit of digital information storage capacity. It is equivalent to 1,024 megabytes (MB) or 1,073,741,824 bytes in the binary system commonly used in computing.

ROM stands for Read-Only Memory, which is a type of computer memory that stores data that is permanently written during manufacturing and cannot be easily modified or erased by normal computer operations. It is used to store infrequently changing information like saved files and programs that are not in current use. Unlike RAM (Random Access Memory), ROM retains its data even when the computer is turned off. Therefore, the given answer accurately describes the purpose and function of ROM in computer systems.

RAM, or Random Access Memory, is a type of computer memory that is used to temporarily store data that the computer is actively using. It is a volatile memory, meaning that its contents are lost when the computer is powered off or restarted. RAM is responsible for holding the operating system, applications, and data that are currently in use by the computer. This allows for quick access and retrieval of information, which helps in the smooth functioning of the computer system.

The calculation for the number of bytes in 1 megabyte (MB) involves understanding the binary nature of digital storage.

1 megabyte (MB) = 1,024 kilobytes (KB)

Now, each kilobyte is equal to 1,024 bytes:

1 kilobyte (KB) = 1,024 bytes

So, to find the total number of bytes in 1 megabyte, you multiply the number of kilobytes by the number of bytes in a kilobyte:

1 megabyte (MB) = 1,024 kilobytes (KB) × 1,024 bytes (B)

1 megabyte (MB) = 1,048,576 bytes

Therefore, 1 megabyte is composed of 1,048,576 bytes in the binary system commonly used in digital storage calculations.

MP3 audio files are compressed audio files that use a lossy compression algorithm. This algorithm reduces the file size by removing certain parts of the audio data that are considered less important to human perception. On average, a minute of MP3 audio is compressed to about 1 megabyte (MB) in size. Therefore, the statement that a minute of MP3 audio is about 1 megabyte (MB) is true.

A byte is a unit of digital information that consists of 8 binary digits or 8 bits. It is the fundamental building block of computer memory and storage, representing a single character of text or a small amount of numerical data. Bytes are used to measure and represent data size, file size, and memory capacity in computer systems.

A standard CD-ROM (Compact Disc Read-Only Memory) typically holds up to 700 megabytes (MB) of data. This storage capacity is based on the Red Book standard, which defines the specifications for audio CDs. CD-ROMs are commonly used for storing various types of data, including software, documents, and multimedia content.

The given statement is false. There are actually 1,024 kilobytes (KB) in 1 megabyte (MB), not 10,000 kilobytes. This is because computers use binary numbering system, where 1 kilobyte is equal to 2^10 bytes, which is 1,024 bytes. Therefore, 1 megabyte is equal to 1,024 kilobytes, not 10,000 kilobytes.

To convert binary to decimal, each digit's place value is determined by 2 raised to the power of its position from the right, starting at 0. In this case, (1 * 2^3) + (1 * 2^2) + (0 * 2^1) + (1 * 2^0) = 8 + 4 + 0 + 1 = 13.

URL stands for Uniform Resource Locator, which is a reference or address used to access resources on the internet. It provides the means to locate and retrieve information, such as web pages, documents, images, and more.

A pixel is the smallest individual unit of a digital image, representing a point or dot in the overall picture. The term "pixel" is derived from "picture element," and collectively, pixels form the visual elements of digital images displayed on screens or captured by cameras.