KwickClips Computer Systems

Computer Systems: 121 short revision clips

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

What is the first step?42 secWhat does diligence mean here?41 secName one school use.40 secIs your phone a computer?44 secWhich machine used punched cards first?40 secWhat did the second generation use?44 secHow often do transistors double?40 secWhat is cloud computing?40 secWhat must you do in the exam diagram?40 secWhich part does the calculations?42 secWhy is unsaved work lost?40 secWhat is a bus?40 secWhat is the stored program concept?41 secWhat are the three steps?40 secWhat does more cache reduce?41 secWhat is an instruction set?39 secWhat does a keyboard send?39 secWhich device gives sound?37 secWhere does the price come from?42 secWho gives input to an automatic door?39 secIs a result on screen a hard copy?38 secWhat is resolution?40 secWhich printer suits a family printing a few photos?44 secWhat is an actuator?40 secWhat does memory hold?41 secWhy was the unsaved essay lost?48 secWhich memory keeps data with the power off?44 secWhere are registers?48 secWhy can ROM not hold your files?40 secWhich is cheapest for large backups?44 secWhat is the cloud, really?41 secWhat is virtual memory?38 secHow many bits in a byte?49 secHow do you convert MB to GB?43 secWhat does delete really do?40 secWhy is recovery a security risk?38 secHow do you fix a hardware fault?37 secWhat loads first when you switch on?40 secWhich kind is a school fee system?39 secName an open source example.41 secWhich language runs directly?39 secWhich is usually faster to run?42 secWhat does an assembler translate?38 secWhat does a debugger let you do?38 secName two operating systems.37 secWhat is a process?42 secWhat does real time mean?39 secWhich uses less memory and CPU?45 sec