1) what does ascii stand for a) a sick crane in italy b) American Standard Code for Information Interchange c) A specific county in india d) Australian Standard Code for Information Interchange 2) What is Binary? a) Shown as a blank white box or a black box b) Characters that are placed in a binary tree structure where the most frequently occuring characters that are placed nearest the top of the tree c) Digits which are recognised by the computer as 1 or 0 d) When the download speed is slower than the playback speed 3) What is data compression a) Used to reduce data file size b) removes soun ds in frequency ranges we cannot hear c) leaves out repeated data and instead makes a note of how many times it is repeated d) ASCII table 38 bytes 4) Resolution is... a) The type of microscope used for seeing things b) The ray of light reflected off an object c) The concentration of pixels within a specific area d) The amplitude used to record each measurement 5) Hertz is... a) another word for 'ear' b) The unit used to measure sound c) A last name of a famous scientist d) Cycles per second 6) Pixels are.. a) Data about du e.g resoultion, colour depth in bits per pixel b) a minute area of illumination on a display screen c) Tiny objects that create an image d) Picture Element 7) Hexadecimal is.. a) relating to or using a system of numerical notation that has 16 rather than 10 as its base. b) a type of language used for coding c) a whole number d) When the code is 0 or 1 8) Run Length Encoding is.. a) Two keys are used at once- one to encrypt and the other to decrypt the data b) When the download speed is slower than the playback speed c) Continuous d) A 100 metre sprint

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