15 essential words — with definitions, examples and pronunciation. Double-click any word to look it up instantly.
algorithmnoun
A set of rules a computer follows to solve a problem.
“Social media platforms use algorithms to decide what you see.”
bandwidthnoun
The amount of data that can be transmitted in a given time.
“Streaming HD video requires a lot of bandwidth.”
browsernoun
A program used to access the internet (Chrome, Firefox, etc.).
“He opened a new tab in his browser.”
cachenoun
Stored data that makes future requests faster.
“Clearing your browser cache can fix many website problems.”
cloudnoun
Remote servers on the internet used to store data.
“All my photos are backed up to the cloud.”
encryptionnoun
Converting data into a code to prevent unauthorised access.
“The app uses end-to-end encryption for all messages.”
firewallnoun
Software that blocks unauthorised access to a computer network.
“The company installed a firewall to protect its data.”
hackverb
To gain unauthorised access to a computer system.
“The website was hacked and user data was stolen.”
interfacenoun
The way a user interacts with a computer program.
“The new interface is much more user-friendly.”
malwarenoun
Software designed to damage or disrupt a computer system.
“The computer was infected with malware.”
processornoun
The main chip in a computer that executes instructions.
“A faster processor means the computer runs programmes more quickly.”
servernoun
A computer that provides services to other computers.
“The company moved its data to a secure server.”
softwarenoun
Programs and operating systems used by a computer.
“You need to update your software regularly.”
uploadverb
To transfer data from your device to the internet.
“She uploaded the photos to her social media account.”
virusnoun
A malicious program that copies itself and damages systems.
“His laptop was infected by a virus.”
Vocabulary Quiz
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