KwickClips Computer Systems

Computer Systems: 121 short revision clips (page 2)

One idea per clip, with the answer written out underneath. Each clip links back to the full Computer Systems lesson it came from.

Give a hardware interrupt example.42 secWhat does a shortcut icon hold?43 secWhich key renames a file?46 secWhere do you change the time zone?42 secWhy avoid cracked software?43 secWhat does 1 mean inside a chip?40 secWhat is the rightmost place value in any base?44 secWhat is 13 in binary?40 secWhat colour code system is #FF9933?40 secWhere do you start adding binary numbers?40 secWhat is the largest number 8 bits can hold?40 secWhat are the two steps after writing the positive number?43 secWhat does a left shift by 1 do?40 secCan a computer store the shape of A?41 secHow many characters does ASCII have?47 secHow many bits does ISCII use?44 secHow many bytes does A take in UTF-32?47 secHow many colours do 8 bits give?43 secWhat is sampling rate measured in?42 secWhat do you divide bits by to get bytes?40 secName one reason file size matters.40 secWhat does compression do to a file?39 secWhat does RLE store for each run?43 secCan lossy removed data be brought back?42 secCan you use lossy compression for an app?42 secWhen does an AND gate give 1?44 secHow many rows for two inputs?42 secWhich part do you draw first?41 secWhy keep the brackets?42 secWhen does NAND give 0?41 secWhat is 1 XOR 1?45 secHow do you make NOT from NAND?40 secWhat do you fill first?40 secWhat values can a Boolean variable hold?43 secWhat is A + A.B?46 secWhat is (A.B)'?38 secWhat is B + B'?39 secIn a minterm, which input gets a bar?40 secWhich rows does POS use?42 secWhy does 11 come before 10?41 secWhy do the four corners form a group?40 secWhich gate gives the sum?45 secHow many bits does a full adder take in?43 secWhat are sum and carry for three 1s?43 secWhich circuit is the opposite of an encoder?43 secIs a question a proposition?40 secHow many rows make p → q false?42 secIs p ∧ ~p a tautology?37 sec