APCSP

ENIAC

The very first internet access, a huge and expensive computer used during WW2.

Binary Digits

Represented by 0 or 1, the basic unit of information in computing.

Vacuum Tube

Early binary digits, used in devices like light switches and computer tubes.

Jack Kilby

Inventor of the two-dimensional microchip, the plannar, revolutionizing technology.

Sneaker Net

Early method of connecting personal computers without networking them.

Local Area Network (LAN)

Group of computers connected to a hub for sharing information.

Client-Server Network

Improved LAN with servers and multiple client workstations for better performance.

Intranet

Connects multiple LANs to the internet for internal business communication.

ARPANET

Funded by the Dept of Defense, the network that started the internet connecting universities.

Network Interface Cards (NIC)

Connect computers to a network, often wireless in modern laptops.

Routers

Specialized computers that connect networks and direct information flow.

Switch

Connects computers in a LAN with more ethernet ports than a router.

Access Point

Allows wireless access to a LAN, commonly used in laptops.

Modem

Converts computer signals to phone line signals and vice versa.

Internet Distribution Frame (IDF)

Connects computers to a switch or router in a network.

Bandwidth

Measure of data transmission capacity, often measured in Mbps.

Internet Protocol (IP)

Set of rules governing data transmission and routing on the internet.

TCP/IP

Protocols for transferring packets of information on the internet.

Sequential Computing

Executes one program at a time, simple but slow.

Parallel Computing

Speeds up processing by having computers work together on a problem.

Distributed Computing

Divides tasks among different computers for efficient problem-solving.