Flashcards
1 / 1
LAN
Local Area Network: a network covering a small geographic area like a home or office.
WAN
Wide Area Network: a network covering a large geographic area, connecting multiple LANs.
PAN
Personal Area Network: a small network for personal devices, e.g., Bluetooth devices.
Wi-Fi 802.11ac
Wireless standard providing high-speed connectivity, commonly used in homes and offices.
IP Address
A unique numerical identifier assigned to a device on a network.
DHCP
Dynamic Host Configuration Protocol: automatically assigns IP addresses to devices on a network.
DNS
Domain Name System: translates domain names into IP addresses.
Router
Network device that directs traffic between different networks and connects to the internet.
Switch
Network device that connects multiple devices within a LAN and forwards data based on MAC addresses.
Motherboard
Main circuit board of a computer, housing the CPU, RAM, and expansion slots.
CPU
Central Processing Unit: the computer’s brain, executes instructions from programs.
RAM
Random Access Memory: temporary memory for the computer’s running programs.
SSD
Solid State Drive: fast storage device using flash memory.
HDD
Hard Disk Drive: traditional magnetic storage device.
Laser Printer
Printer type using laser technology for high-quality, fast printing.
Inkjet Printer
Printer type spraying tiny droplets of ink for printing documents and images.
SaaS
Software as a Service: software hosted in the cloud and accessed via a browser.
PaaS
Platform as a Service: cloud service providing platforms to develop, run, and manage applications.
IaaS
Infrastructure as a Service: cloud service providing virtualized computing resources over the internet.
Virtual Machine
A software-based emulation of a computer system running on a host machine.
Screen Lock
Security feature to prevent unauthorized access to a device when idle.
Encryption
Process of converting data into code to prevent unauthorized access.
Malware
Malicious software designed to harm or exploit devices.
POST
Power-On Self-Test: diagnostic testing sequence a computer runs when powered on.
Overheating
Common hardware issue caused by poor cooling or excessive workload.
Battery Calibration
Process of fully charging and discharging a device to improve battery accuracy.
NFC
Near Field Communication: short-range wireless technology for data exchange.
Docking Station
Accessory that allows a laptop to connect to peripherals easily.
RJ-45
Ethernet connector used for network cables.
RJ-11
Telephone connector used for dial-up and phone lines.