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Computer Terminology
Internet, Network, and Storage
| Question | Answer |
|---|---|
| A unique string of numbers that identifies each device on a network, like a virtual return address. | IP address (Internet Protocol) |
| A permanent ID number assigned to a device's network card when it's manufactured. | MAC address |
| A Local Area Network. A small network confined to one area, like your home or office | LAN |
| The wireless alternative to Ethernet. The 802.11 family of radio-based networking standards. | Wi-Fi |
| Routes data between networks. Most home "routers" are actually routers, switches, and wireless access points in one unit. | Router |
| Converts signals between analog (like cable or phone lines) and digital (like Ethernet). The bridge between your home network and the internet. | Modem |
| Monitors traffic between networks to block suspicious activity. Can be hardware or software. | Firewall |
| Tricking people into revealing sensitive info by posing as a trusted entity. Be wary of emails asking you to log in or download attachments. | Phishing |
| Catch-all term for malicious software like viruses, spyware, and ransomware. Only download from trusted sources. | Malware |
| Malware that spreads by copying itself, like a biological virus. Evolved into more advanced forms: | Virus |
| The smallest unit of data. It's either a 1 or a 0, corresponding to an electrical switch being on or off. | Bit |
| 8 bits lumped together. Represents a single character, like the letter 'A' or a dollar sign. | Byte |
| 1,048,576 bytes, or 1024 kilobytes. A typical MP3 song is a few MB. | Megabyte (MB) |
| 1,024 MB. About the size of a movie download or modern video game. | Gigabyte (GB) |
| 1,024 GB. The usual size of a computer hard drive these days. | Terabyte (TB) |
| 1,024 TB. Big data territory. Companies like Google and Facebook store data on this scale. | Petabyte (PB) |