Everything! Flashcards
What number system do these facts describe?- 0 or 1 (2 digits)- Base 2- Used by computers- Uses more digits for the same number
Binary
What’s missing from this list of data units - gigabyte, ______, petabyte
terabyte
Name 4 facts about the denary number system
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, (10 digits)- Base 10- Used by humans- Uses less digits for the same number
KB means
kilobyte
The central authority for currencies are
banks
An infrastructure means all…
parts are connected in a huge network
TB means
terabyte
What is artificial intelligence?
The development of programs to simulate human behavior.
a bit is either a __ or a __
1 or 0
Binary digit can be shortened to…
bit
What is image recognition?
identify objects or people in an image
An example of a central bank is….
Bank of England, Bank of Korea
Packets are made up of
Header / Payload (Data) / Trailer
The world wide web the name for
all websites and webpages
What is full-duplex?
Both directions at the same time, example is broadband internet or online gaming
EB means
exabyte
What is unsupervised machine learning?
Unsupervised means that data is input, and then the program learns from the data.
The smallest piece of computer memory is
a bit
Cryptocurrency payments over the internet are secure because
they are encrypted
Inside every computer is a ______
CPU
Cryptocurrency has no ________ _________
central authority
What has no central authority for payments?
cryptocurrencies
How do expert systems work?
System asks questions to determine the solution, depending on answers given it will ask different questions
In expert systems, what’s an inference engine?
Decides which question to ask next or which answer it gives
How many bits in a nibble?
4
What is speech recognition?
Identify words spoken by humans and store them
Both directions at the same time describes what?
Full-duplex data transmission
All parts connected in a huge network is called an
infrastructure
4 bits is called a
nibble
Blockchains record…
All payments with time and date stamps
Blockchains are accessible by…
every connected computer
A single 1 or 0 is called a
bit
Bank of England and Bank of Korea are examples of
central banks
data -> process -> _________
data -> process -> information
What is the ability to adapt and learn in AI?
Not all AI does this, its known as machine learning and requires training a program
Computers convert ________ data to ________ data
Computers convert analogue data to digital data
What is a diagnosis system in AI?
e.g. to diagnose medical problems
IP address = ______ ______ address
Internet protocol address
A collection of webpages is called
a website
Data is sent from one device to another using ___________
packets
In expert systems, what’s a user interface?
Outputs questions and other statements to the user and allows them to enter data
What is the ability to reason in AI?
An area of logic. In logic you have rules and can develop facts
Websites are a collection of
webpages
URL
uniform resource locator
How many megabytes in a gigabyte?
1024
What is machine learning?
A system that has the ability to learn and adapt, and change their own rules and logic. It involves training.
What is supervised machine learning?
Supervised means that user is telling the program what its data means.
What are programmed rules in AI?
Programs use rules to make decisions
Digital payments over the internet are secure because they are
Encrypted
What’s missing from this list of data units - megabyte, ______, terabyte
gigabyte
In expert systems, what’s a knowledge base?
list of facts
Once added to a blockchain, records….
cannot be changed
What is half-duplex?
both directions but NOT at the same time, example is walkie-talkie
No central authority as also called
Decentralised
Both directions NOT at the same time describes what?
Half-duplex data transmission
A blockchain is like a
digital ledger or list of all records of payment
Name 2 facts about IP addresses
IP addresses can change // You can’t access the internet without an IP address
Describe data transmission
Signals transmitted from one device to another
Every device that connects to the internet has…
An IP address
CPUs are made of billions of _______
switches
PB means
petabyte
analogue data is experienced by _________
humans
Every device that connects to a network is given…
An IP address
Order the data units from LARGEST to smallest
exabyte, petabyte, terabyte, gigabyte, megabyte, kilobyte, byte, nibble, bit
Banks are the ________ _________ for currencies
central authority