What you learned
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AI agent
An LLM that can take actions, check the results and keep going until the job is done.
Amazon
An online store with its own delivery network, and the company that runs AWS.
Amazon API Gateway
The front door of your API: it receives requests and passes them to your code.
Amazon Athena
Run SQL directly on files sitting in S3, with no database to set up.
Amazon Bedrock
A single AWS service to call AI models from Anthropic, Meta, Amazon and others.
Amazon CloudFront
AWS's CDN: copies of your content kept close to users all over the world.
Amazon CloudWatch
The dashboard and alarm system that watches everything running in your AWS account.
Amazon Cognito
Sign-up, login and passwords for your app, handled by AWS instead of you.
Amazon DynamoDB
A key-value database that answers in milliseconds no matter how big the table gets.
Amazon EBS
The virtual hard drive of an EC2 instance, kept alive even when the instance stops.
Amazon EC2
Virtual computers you rent by the hour, in any size, and switch off when done.
Amazon ECS and Fargate
AWS runs your containers; with Fargate you never see the servers at all.
Amazon EKS
Kubernetes with the hard part, the control plane, run by AWS.
Amazon RDS
A ready-made relational database that AWS keeps patched, backed up and running.
Amazon Route 53
AWS's DNS service: it turns your domain name into the address of your servers.
Amazon S3
A giant online drawer for files, rented by the gigabyte.
Amazon SageMaker
The AWS workshop for building, training and serving machine learning models.
Amazon SNS
One message in, many copies out: a megaphone for systems.
Amazon SQS
A waiting line for messages between programs, so none of them gets lost.
Amazon VPC
Your own private slice of the AWS network, with walls you draw yourself.
AMD
The chip designer that competes with Intel in CPUs and with NVIDIA in GPUs.
Anthropic
The AI company behind Claude, built around making models safe and useful.
API
The menu of things one program lets another program ask for.
Apple
The company that sells the iPhone and the Mac, plus the services that run on them.
Arm
The British company that designs the processor blueprints inside almost every phone.
ASML
The Dutch company that builds the machines every advanced chip factory depends on.
AWS account and billing
What an AWS account is, how you get charged, and how to avoid a surprise bill.
AWS CloudFormation
Describe your AWS infrastructure in a text file; AWS builds it exactly like that.
AWS Lambda
Run a piece of code only when something happens, with no server to manage.
AWS Secrets Manager
A locked vault for passwords and API keys, so they never live in your code.
AWS Step Functions
A flowchart that runs: it chains steps, retries failures and remembers where it was.
Bandwidth and latency
How much data fits per second, and how long each trip takes. Two different things.
CDN
Copies of a website kept on servers around the world, close to whoever asks.
Cloud computing
Renting computers over the internet instead of buying your own.
Container
A sealed box with a program and everything it needs to run anywhere.
CPU
The chip that runs your programs, one instruction after another, very fast.
CSV
A plain text file that holds a table: one row per line, commas between values.
Data center
A building full of servers where the internet, the cloud and AI actually run.
Data lake
Cheap storage where all your data is kept as raw files, to be sorted out later.
Data streaming
Processing data as a continuous flow of events, seconds after they happen.
Data warehouse
A database built for analysis: years of history, from many sources, in one place.
Database
An organized store of data that programs can search and update safely.
Database index
A sorted shortcut that lets a database find rows without reading the whole table.
DDoS
Knocking a site offline by flooding it with more traffic than it can handle.
DNS
The internet's phone book: it turns names like wikipedia.org into IP addresses.
Embeddings
Turning words, images or documents into lists of numbers that capture meaning.
Encryption
Scrambling data so that only someone with the key can read it.
End-to-end encryption
Only the sender and the recipient can read a message; the service in between cannot.
ETL
Copy data out of its sources, clean it up, load it where it can be analyzed.
Firewall
A gatekeeper that decides which network traffic gets in or out.
Frontend and backend
The part of an app you see and touch, and the part that works behind it.
Git
A time machine for code: every change saved, by whom and why.
The search company that gives most products away and makes its money on ads.
GPU
The chip that does thousands of simple calculations at once.
Hallucination
When an AI model states something false with total confidence.
Hashing
A one-way fingerprint of data: easy to compute, not meant to be reversed.
HTTP
The request-and-response language browsers and websites speak.
HTTPS
The padlock in your browser: web traffic nobody in between can read.
IAM
The rulebook that says who can do what in your AWS account.
Infrastructure as code
Describing servers, networks and databases in files instead of clicking.
Intel
The American company behind most PC and server processors for decades.
IP address
The number that identifies a device on a network, like a postal address.
JSON
The plain-text format programs use to hand each other structured data.
Kubernetes
The system that runs and babysits containers across many machines.
LLM
A neural network trained on huge amounts of text to predict the next word.
Load balancer
The traffic cop that spreads incoming requests across many servers.
Malware and ransomware
Software built to harm you; ransomware locks your files and charges to unlock them.
Meta
The company behind Facebook, Instagram and WhatsApp, paid for by advertising.
Microsoft
The company of Windows and Office, now just as much a cloud company with Azure.
NAT
How a whole home or office shares one public IP address on the internet.
Neural network
A pile of tiny math units that learns patterns from examples.
NVIDIA
The company that sells the shovels of the AI gold rush.
OAuth and SSO
Log in once with an account you trust, and let it vouch for you in other apps.
Open source
Software whose code anyone can read, use, change and share.
OpenAI
The company that made ChatGPT and turned AI into a household topic.
Packet
The small chunk every piece of internet data is cut into before it travels.
Parquet
A file format that stores tables by column, compressed, so analytics reads far less.
Password manager
An encrypted vault that remembers a different strong password for every site.
Phishing
A fake message that tricks you into handing over a password or a payment.
Port
The numbered door on a computer that says which program a connection is for.
Prompt
Everything you send to an AI model: the question, the instructions, the context.
Public-key cryptography
Two linked keys: one you share with everyone to lock, one you keep to unlock.
RAG
Let the model look things up in your documents before it answers.
RAM
The computer's short-term memory: fast, small and wiped when you turn it off.
Regions and Availability Zones
Where AWS physically lives: cities worldwide, each split into separate data centers.
Router
The box that connects your devices to each other and to the internet.
Samsung
Korean giant that sells phones and TVs, and makes much of the world's memory chips.
Serverless
Code that runs only when called; you never see or manage the server.
SQL
The language you use to ask a database questions.
SSD
Storage with no moving parts: where your files live when the power is off.
TCP and UDP
Two ways to send packets: TCP checks everything arrives, UDP just sends and moves on.
TLS certificate
The ID card a website shows your browser to prove it is who it claims to be.
Token
The small chunk of text a language model actually reads.
Training and inference
Training builds the model once; inference is using it, millions of times a day.
TSMC
The factory that makes the world's most advanced chips for everyone else.
Two-factor authentication
A second proof that you are you, so a stolen password alone is not enough.
URL
The full address of something on the web: protocol, site and path.
VPN
An encrypted tunnel that sends all your traffic through another network first.
Vulnerability and CVE
A flaw that lets an attacker misuse software, and the public id that names it.
WebSocket
A connection between browser and server that stays open, so both can talk anytime.
Wi-Fi
Networking over radio waves: the internet without the cable, within a few rooms.
Zero trust
Security that checks every request, instead of trusting whatever is inside the network.
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