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Cambridge IGCSE Computer Science Questions and Answers (Latest update 2024)
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Cambridge IGCSE Computer Science Questions and Answers (Latest update 2024)
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Cambridge IGCSE Computer ScienceQuestions and Answers (Latest update
2024)
HTTP - hypertext transfer protocol - Correct Answer ✅a set
of rules which must be followed when transferring files across
the internet
URL - uniform resource locator - Correct Answer ✅used to
find/identify a webpage on the internet 1. webserver name 2.
file name 3. protocol
web browser - Correct Answer ✅software that allows a user
to display a webpage on their screen - they interpret html
code and show the result
actuator - Correct Answer ✅used in many control
operations involving sensors and ADC/DACs. Electromagnetic
device eg. motor that outputs result of sensor operation
loudspeaker - Correct Answer ✅output device that
produces sound using voltages at different levels which
vibrate a cone in speaker housing
,Cambridge IGCSE Computer Science
Questions and Answers (Latest update
2024)
LED - Correct Answer ✅Used for backlighting a monitor/tv -
they are thin, produce a white light, and do not require much
power
CCFL - Correct Answer ✅Old technology used for
backlighting - took time to warm up, and produced yellow-ish
lighting + required a lot of power
volatile - Correct Answer ✅memory that loses its contents
when the power is off eg. main memory
non-volatile - Correct Answer ✅memory that doesn't lose
its contents when the power is off e.g. hard disk
off-line storage - Correct Answer ✅storage that can be
physically moved away from a device and stored somewhere
else e.g. CD, USB stick, DVD
SRAM - Correct Answer ✅type of RAM that has 'flip flops' to
hold each bit of memory. Does not need constant refreshing.
,Cambridge IGCSE Computer Science
Questions and Answers (Latest update
2024)
magnetic media - Correct Answer ✅secondary storage with
mechanical parts which move over the surface to read and
write data magnetically e.g. a hard disk, tape or floppy disk
program - Correct Answer ✅our way of telling a computer
what to do, how to do it, and when to do it
assembly language - Correct Answer ✅code that is specific
to a particular hardware, but needs to be translated into
machine code before it can run
machine code - Correct Answer ✅the binary code that is
specific to a machine and does not need translating in order
to run
translator - Correct Answer ✅program that changes higher
level language into machine code
, Cambridge IGCSE Computer Science
Questions and Answers (Latest update
2024)
compiler - Correct Answer ✅this translates HLL into
machine code. Once it has done this, the program can be
used multiple times without translating it again
UPS - Correct Answer ✅uninterruptable power supply
cracking - Correct Answer ✅editing source code with
malicious intent
firewall - Correct Answer ✅this examines traffic between a
user's computer and the internet by checking what is/isn't
allowed and blocking traffic that does not meet certain
criteria
proxy server - Correct Answer ✅this filters web traffic,
keeps the IP address secret, and, using a cache, speeds up
access to websites that have been visited before
TLS - Transport Layer Security - Correct Answer ✅this is a
form of secure data transmission made up of 2 layers: the
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