COMPUTER SCIENCE EXAM WITH QUESTIONS & VERIED ANSWERS LATEST UPDATE ALREADY GRADED A+

COMPUTER SCIENCE EXAM WITH QUESTIONS & VERIED ANSWERS LATEST UPDATE ALREADY GRADED A+ disadvantages of networking computers - management is complicated and expensive - viruses can infiltrate one computer and spread across network quickly topology SDD Solid State Drive - non volatile storage - no moving parts - read/write quicker than HDD - low power consumption ASCII American Standard Code for Information Interchange - substitutes a number for each character - stored in binary using 7 bits - 128 characters colour depth (bit depth) - number of bits assigned to each pixel - higher = more colours = larger file size resolution number of pixels sound (data representation) - microphone converts sound to electrical signal - analogue to digital converter (ADC) digitises the signal - via sampling the analogue signal sampling frequency how often the analog signal is measured - determines sound quality and file size lossy compression - discards data - reduces file size - data to discard is chosen by algorithm