COMPUTER SCIENCE Flashcards
What is an algorithm?
set of rules / instructions to be followed by a computer system
What is a pseudocode?
Language similar to english used to plan algorithms
what is a string
a sequence of characters used to represent text
what is a float/ real
a decimal number
what is an integer
a whole number
what is a boolean
a value that is either true or false
what does ‘==’ mean
equal to
what does ‘!=’ mean
not equal to
what does ‘>’ mean
greater than
what does ‘<’ mean
less than
what does ‘>=’ meqn
greater than/equal to
what does ‘<=’ mean
less than/equal to
+
addition
-
subtraction
*
multiplication
/
division
what is a variable
a value that can change during a program
constant
a value that stays the same throughout the program
syntax error
spelling/grammar errors in the code
code
instructions that a program uses
python
a programminh language used to write paragraphs
flowchart
a visual method of planning an algorithm using symbols
while loops
used to repeat a section of code an unknown number of times until a specific condition is met
for loops
used to iterate (repeat) over sequences
if statement
condition statement used to check a condition and execute it if the condition holds through
e-safety
strategies and systems to help people stay safe online
cyber-bullying
use of electronic communication to bully a person
digital footprint
information about a particular person that exists on the internet as a result of their online activity ; cannot be deleted
hacking
gaining access to systems and computers without permission to access
grooming
someone using the internet to trik, force, or pressure a young person into doing something that they wouldn’t normally do
data
units of information
malware
software designed to cause harm/damage to a computer
hardware
physical parts of a computer that you can see and touch
PAN
(personal area network) connects electronic devices within a users immediate area
what is the computer misuse act
designed to make hacking into a computer illegal
what is the data protection act
it protects personal details stored on computer systems ; it makes sure that our sata is properly looked after
anti-virus
a program designed to detect and remove viruses and other kinds of malicious software from your computer or laptop
what is a trojan (horse)
a form of malware that manipulates a computer user into thinking content in a file is safe
what is spyware
What is spyware explanation for kids?
A type of program installed on a person’s computer without the owner’s consent
copyright, design and patents act
desinged to protect peoples creations
what is an input device
piece of hardware that can be used to enter data in a computer
what is an output device
piece of hardware that can be used to represent information in different ways
LAN
(Local Area Network) conects devices together over a small geographical location
WAN
(Wide Area Network) a computer network where devices are connected over a wide geographical area
hardrive
where all the computers long term data is stored
RAM
(Random Access Memory) where tempory data is stored whilst the computer is currently being used
CPU
(Central Processing Unit) is the primary component of a computer that acts as its “control center.”
Motherboard
circuit board for the computer system
ROM
(Read Only Memory)memory that can’t be changed by a program/user
computer networks
connects two or more computers and communication devices
network security
any activity designed to protect the ysability and integrity of your network and data
peripheral
devices (or tools) that send or receive information from a computer or device
