AP Computer Science Principles Unit 1 Test

Summary AP/College Computer Science Principles All Units 1-10 Tests Answered Summer 2023. AP Computer Science Principles Unit 1 Test Data ________ refers to the symbols that represent people, events, things, and ideas. Data can be a name, a number, the colors in a photograph, or the notes in a musical composition. Data Representation ____________refers to the form in which data is stored, processed, and transmitted Digitization the process of converting text, numbers, sound, photos, and video into data that can be processed by digital devices binary digits 0s and 1s used to represent digital data bit 0 or 1 used in digital representation of data digital file a named collection of data that exits on a storage medium, such as a hard disk, CD, DVD, or flash drive numeric data consists of numbers that can be used in arithmetic operations 0 & 1 binary number system has only two digits: character data composed of letters, symbols, and numerals that are not used in calculations name, address, and hair color examples of character data text another name for character data 7 bits How many bits does ASCII require for each character? 1000001 uppercase A in ASCII 8 bits How many bits does extended ASCII require for each character? 256 Extended ASCII provides code for _____ characters. 16 bits How many bits does Unicode require for each character? 65,000