0G refers to pre-cellular mobile telephony technology. These mobile telephones were usually mounted in cars or trucks. Typically, the transceiver (transmitter-receiver) is mounted in the vehicle trunk and attached to the "head" (dial, display, and handset) mounted near the driver seat
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A high-speed local area network, also called Fast Ethernet. 100BaseT transmits at 100 megabits per second.
A standard computer keyboard with 101 keys including the alphanumeric keys, the number pad, F keys, and arrow keys.
A keyboard with 104 keys designed to accommodate the Windows 95 operating system.
An Ethernet standard in which a thin coaxial cable is used to connect network nodes. The cable is attached by means of BNC T-connectors to the network cards.
A version of Ethernet in which stations are attached by twisted pair cable, the traditional cables used for telephone lines. 10BaseT uses a star formation, and transmits at 10 megabits per second.
15-bit color makes it possible to display up to 32,768 colors. Digital video requires at least 15-bit color.
A monitor with 16-bit color can display 65,536 colors. This kind of monitor can produce high-quality images for desktop publishing and multimedia.
A computer whose central processing unit can process 16 bits of information at a time.
|16-bit operating system|
An operating system that can process 16 bits of data at once.
|16-bit sound card|
A sound card that takes 16-bit samples of a sound wave, measuring the wave on a scale of 65,536 increments. The 16-bit sound cards produce high-fidelity sound and music for multimedia.
16ary Quadrature Amplitude Modulation (16-QAM), one of the forms of QAM, is a modulation scheme. In QAM, the constellation points are usually arranged in a square grid with equal vertical and horizontal spacing, although other configurations are possible. Since in digital telecommunications the data is usually binary, the number of points in the grid is usually a power of 2 (2,4,8...). Since QAM is usually square, the most common forms of QAM are 16-QAM, 64-QAM, 128-QAM and 256-QAM. By moving to a higher-order constellation, it is possible to transmit more bits per symbol. However, if the mean energy of the constellation is to remain the same (by way of making a fair comparison), the points must be closer together and are thus more susceptible to noise and other corruption; this results in a higher bit-error rate and so higher-order QAM can deliver more data less reliably than lower-order QAM.
|1G: First Generation wireless technology|
First Generation wireless technology (1G) is the original analog, voice-only cellular telephone standard, developed in the 1980s. One such standard is NMT (Nordic Mobile Telephone), used in Nordic countries, Eastern Europe and Russia. Others include AMPS (Advanced Mobile Phone System) used in the United States, TACS (Total Access Communications System) in the United Kingdom, JTAGS in Japan, C-Netz in West Germany, Radiocom 2000 in France, and RTMI in Italy. Analog cellular service is being phased out in most places worldwide.
|1GL: First Generation Programming Langua|
First-generation programming language(1GL) is a machine-level programming language, which was written in 1s and 0s. There is no compiler or translator required and it can be understood and used by a CPU directly. The code using 1GL can run very fast and efficiently since it is directly executed by the CPU. However, machine language is somewhat more difficult to learn than higher generational programming languages, and it is far more difficult to edit if errors occur. Furthermore code portability is significantly reduced in the 1GL based code. First-generation programming language is mainly used now on very ancient computers. Machine level programming still finds a use in several areas of modern programming with the help of native-code compilers which creates machine language, usually from a higher-level language.
1xEV-DO, also known as Evolution Data Optimized (EV-DO), is a third-generation (3G) cellular data technology for GPRS-enabled cellular phones, networks and handheld devices. Its bandwidth is up to 3.1Mbps.
1xEV-DV, also known as Evolution Data/Voice (EV-DV), is a third-generation (3G) cellular data technology for GPRS-enabled cellular phones, networks and handheld devices. Its bandwidth is up to 3.1Mbps.
1xRTT is a cellular data technology for CDMA networks. RTT stands for Radio Transmission Technology. 1xRTT has a theoretical maximum of 144 Kbps of bandwidth, but achieves a practical throughput of only 50 to 70 Kbps in the real world.
A format in which a year (such as 1995) is represented as two digits (95), only practical if all dates are within the same century; for example, this format cannot distinguish between 1995 and 2095.
Second-and-a-half generation wireless service. Most carriers will move to this wireless service before making the drastic upgrade to 3G. 2.5G changes wireless service to a packet-switched service that will dramatically increase transmission speeds.
2.5G refers to the bridging technologies between second (2G) and third generation (3G) wireless communications. It is a digital communication allowing e-mail and simple Web browsing, in addition to voice. The key technologies include GPRS and WiDEN.
The period of time from January 1, 1901 through December 31, 2000.
The period of time from January 1, 2001 through December 31, 2100.