1/e: First Edition
100BaseT: 100 Mbps Baseband over Twisted pair
100BaseT2: 100 Mbps Baseband over two Twisted pairs
10B12B: 10-Bits/12-Bits
10B2: 10Base2
10BT: 10BaseT
10FSL: 10.0 File System Layout
10GbE: 10 Gigabit Ethernet
10GEA: 10 Gigabit Ethernet Alliance
10X: 10-Speed
12X: 12-Speed
14.4: 14.4 kbps
16-QAM: 16-state Quadrature Amplitude Modulation
16CIF: 16 times CIF
1G: First Generation
1MM: 1 Meg Modem
1MMS: 1 Meg Modem Service

1NF: First Normal Form
1X: Single-Speed
2 Dr: 2 Draht
2-FSK: Two-level FSK
2.5G: Second and a half generation
2.5G: Second-and-half Generation
2/e: Second Edition

21CN: 21st Century Network
28.8: 28.8 kbps
2B1Q: Two Binary One Quaternary
2B1Q: Two Binary, One Quaternary
2BCD: Two Bearer and one Data
2D: 2-Dimensional
2Dr: 2 Draht
2F: Two-Fiber
2G: Second Generation

2NF: Second Normal Form
2W: Two-Wire
2WTI: 2-Wire Trunk Interface
2X: Double Speed
3/e: Third Edition
386: 80386 microprocessor
387: 80387 microprocessor