CodeHS Unit 8 Digital Information Quiz Latest Version Already Passed

CodeHS Unit 8 Digital Information Quiz Latest Version Already Passed What is digital information in computing? Digital information refers to data that is represented in binary form, using ones and zeros. What does a bit stand for in digital systems? A bit stands for "binary digit" and is the smallest unit of data, representing either a 0 or a 1. What is the purpose of using binary code in digital devices? Binary code is used because digital devices, like computers, process data in electrical circuits that are in either an on or off state, represented by 1s and 0s. How many unique values can be represented by 3 bits? Three bits can represent 8 unique values, ranging from 000 to 111 in binary. What is a byte in terms of digital information? A byte consists of 8 bits and is commonly used to represent a single character of text in most computer systems. 2 How do computers store and manipulate digital information? Computers store and manipulate digital information using binary representations, and processors execute operations on that data. What is the difference between analog and digital signals? Analog signals are continuous, while digital signals are discrete, represented by a series of 0s and 1s. What is the role of a pixel in digital images? A pixel is the smallest unit of a digital image, each pixel representing a color or intensity value in the image. What does it mean to sample data in digital systems? Sampling involves taking measurements at regular intervals to convert continuous signals (analog) into discrete digital values. How does data compression work in digital information? 3 Data compression reduces the size of digital files by eliminating redundancy or using algorithms to encode data more efficiently. What is the significance of the ASCII system in digital information? The ASCII system assigns numerical values to characters, allowing text to be represented and processed in binary form. How does error detection work in digital data transmission? Error detection uses algorithms to check for inconsistencies or errors in transmitted data, ensuring the information is accurate. What is the role of encryption in digital information security? Encryption is used to transform data into a secure format that can only be accessed by authorized users, protecting sensitive information. What is the function of an algorithm in processing digital information? An algorithm is a set of step-by-step instructions