KwickClips Computer Systems

Computer Systems: 121 short revision clips (page 3)

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

Table comparing valid, satisfiable and unsatisfiable formulae.

Is every valid formula satisfiable?42 sec

Three features of an embedded system: inside a larger device, one job, program in ROM.

Why can you not install apps on a fridge?41 sec

Table of embedded systems with their sensors and actions.

What does the processor do?43 sec

Two columns listing advantages and limitations of embedded systems.

Give one advantage.39 sec

Table comparing embedded and general purpose computers by purpose, software and example.

Is a laptop embedded?42 sec

Table of AI, ML and NLP with one example each.

Is ML separate from AI?48 sec

Sense, decide, act: sensors, controller and actuators of a robot.

Is every machine a robot?43 sec

Two columns of AI advantages and disadvantages.

How can AI become unfair?45 sec

Table of three AI careers and what each does.

What does an ML engineer do?41 sec

Table of IaaS, PaaS and SaaS with AWS, App Engine and Gmail.

Is Gmail IaaS, PaaS or SaaS?44 sec

Flow: a big task split across computers and results combined.

What is grid computing used for?40 sec

Blocks linked in a chain, each storing the hash of the block before.

What links the blocks?40 sec

Table of uses and risks for cloud, grid and blockchain.

Is cloud data totally safe?42 sec

Table of temperature, motion and gas sensors with what they measure.

Can a bulb use the internet?43 sec

Three smart city services: traffic signals, smart meters, cameras and control rooms.

How do smart traffic signals help?42 sec

List of the five Vs of big data with short meanings.

Which V means trustworthiness?45 sec

Table comparing AR and VR by world, device and example.

Is a face filter AR or VR?45 sec

Table of mobile network generations 1G to 5G and what each added.

Which generation brought mobile internet?46 sec

RFID tag with chip and antenna replying to a reader's radio waves.

Does RFID need touch?40 sec

Three biometric features: fingerprint, face and iris.

What is the iris?42 sec

Three green computing practices: switch off, energy-efficient devices, recycle e-waste.

Can using a computer be eco friendly?40 sec

List of three characteristics of AI in Cambridge syllabus words.

How many characteristics of AI are listed?42 sec

Table of the four parts of an expert system and their roles.

Which part holds facts?43 sec

Loop: spam filter checks patterns, user marks mistakes, filter adapts.

Who rewrites the program each time?40 sec

Exam question on the inference engine with a three-point answer.

Describe the role of the inference engine.40 sec

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Computer Systems: 121 short revision clips (page 3)

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