c","front":"Before a computer can process text, images or sound, what must happen?","back":"It must be converted into binary.","points":1},{"id":"cbf511a8-4f96-4b69-80ea-2ad2694e5db0","cardType":"cloze","front":"A byte contains [ ].","back":"A byte contains 8 bits.","points":null},{"id":"ecbbc021-5910-48c8-a9f1-c4ae00700efb","cardType":"basic","front":"How many bits are in a nibble?","back":"4 bits.","points":1},{"id":"e1d8a7e9-402b-421a-bbc8-f2cd10537c8e","cardType":"basic","front":"For OCR decimal prefixes, how many bytes are in 1 kB?","back":"1,000 bytes.","points":1},{"id":"ee8e8252-4257-4959-8bcf-485a75efc1a3","cardType":"cloze","front":"For OCR decimal prefixes, 1 MB = [ ] and 1 GB = [ ].","back":"For OCR decimal prefixes, 1 MB = 1,000 kB and 1 GB = 1,000 MB.","points":null},{"id":"9b4a4899-3823-4ed8-8226-6deabc3ef28e","cardType":"basic","front":"When converting from a larger byte-based unit to a smaller adjacent unit, what do you do?","back":"Multiply by 1,000.","points":1},{"id":"33f4951e-43bb-46cc-b435-a611fd9cf2b6","cardType":"basic","front":"When converting from a smaller byte-based unit to a larger adjacent unit, what do you do?","back":"Divide by 1,000.","points":1},{"id":"6308318f-406b-4414-a863-f615b71aacba","cardType":"cloze","front":"To convert from bits to bytes, [ ]; from bytes to bits, [ ].","back":"To convert from bits to bytes, divide by 8; from bytes to bits, multiply by 8.","points":null},{"id":"03b395c2-b55e-4557-9ab8-43a33d762039","cardType":"basic","front":"Convert 6 MB to bytes using OCR decimal prefixes.","back":"6,000,000 bytes.","points":2},{"id":"6e756267-9cc0-4d0a-85b5-68608b5c87a7","cardType":"basic","front":"How do you decide whether several files will fit on a storage device?","back":"

Convert all sizes to the same unit.
Fit if total file size ≤ capacity.

","points":2},{"id":"0f6f85ba-7077-4e11-b17d-9a60d5d905cd","cardType":"cloze","front":"Text size (bits) = [ ].","back":"Text size (bits) = bits per character × number of characters.","points":null},{"id":"ab37149a-843d-41b8-afe9-1d5e7c3090af","cardType":"basic","front":"A text file has 2,000 characters at 8 bits per character. What is its size in bytes?","back":"2,000 bytes.","points":2},{"id":"c8d04de0-6d24-4204-9b38-54fb6d232eac","cardType":"basic","front":"How is the number of pixels in an image found?","back":"Width × height.","points":1},{"id":"1c7aaad5-7d7e-4dee-a723-4f28dff15ff6","cardType":"cloze","front":"Image size (bits) = [ ].","back":"Image size (bits) = colour depth × height (px) × width (px).","points":null},{"id":"91c8cf69-5490-4f5c-aabd-b3ea999b1f00","cardType":"basic","front":"If an image's colour depth increases but its dimensions stay the same, what happens to file size?","back":"It increases, because each pixel uses more bits.","points":2},{"id":"1718d938-d76a-44e2-8a90-cf27b95df39b","cardType":"cloze","front":"Sample rate is the number of sound samples taken per [ ]; bit depth is bits per [ ].","back":"Sample rate is the number of sound samples taken per second; bit depth

Units Flashcards

Units Flashcards

Units Flashcards

Units Flashcards