Compute science - Study guides, Class notes & Summaries

AP Computer Science Principles EXAM With complete solutions NEWEST 2024/25

ADVANCED SERVICE NOW ADMINISTRATION CERTIFICATION (COMPUTER SCIENCE) STUDY GUIDE WITH COMPLETE SOLUTION!!

GCSE Edexcel Computer Science Exam Questions And Complete Solutions 1. Explain how binary is used to represent data (numbers, text, sound, graphics) and program instructions binary is used to represent all elements in a computer It is stored as a series of 0s and 1s These relate to the position of transistors (on or off) All analogue data stored is converted into digital (binary) 2 Explain the difference between unsigned and signed integers An unsigned integer can only represent positive...

IGCSE COMPUTER SCIENCE (ALL) EXAM QUESTIONS WITH COMPLETE SOLUTIONS

GCSE Edexcel Computer Science Exam Questions And Complete Solutions 1. Explain how binary is used to represent data (numbers, text, sound, graphics) and program instructions binary is used to represent all elements in a computer It is stored as a series of 0s and 1s These relate to the position of transistors (on or off) All analogue data stored is converted into digital (binary) 2 Explain the difference between unsigned and signed integers An unsigned integer can only represent positive...

Overflow - error that results when the number of bits is not enough to hold the number, like a car's odometer "rolling over" Round-off - error that results when the number of bits is not enough to represent the actual number, like 3 digits to represent π as 3.14 Lossy - Compressing data in a way that throws some data away and makes it almost impossible to recover the original, great compression, like JPEG images Lossless - Compressing data in a way that preserves all data away and allo...

AP Computer Science Principles Vocabulary With Complete Solutions Latest Update

AP Computer Science Midterm A state government is attempting to reduce the digital divide. Which of the following activities has the greatest potential to contribute to the digital divide rather than reduce it? (A) Providing programs that focus on technology literacy at local libraries (B) Requiring applicants for government jobs to apply using an online platform (C)Working with technology companies to offer computing devices at discounted prices to individuals with reduced incomes (D) W...

Ethics in Computer Science mid-term review with complete solution

CERTIFIED COMPUTER SCIENCE STATE TEST 500+ QUESTIONS WITH VERIFIED ANSWERS LATEST UPDATE 2024 What is the CPU and what does it do? The CPU is the central processing unit and it carries out all the processing and calculations in a computer. What is ASCII? ASCII (American Standard Code for Information Interchange) is a character system that lets computers and devices process letters, numbers and characters. It is represented by a 7-bit binary number. What is Unicode? Unicode allows for a gre...