Từ điển máy tính




0.13-Micron Technology 0.13 micron is a manufacturing term that refers to the feature size of the poly-silicon gate in the microprocessor. This feature size has a direct correlation to the speed and power requirements of the microprocessor. As feature sizes are reduced, the process speed (MHz) increases while the power requirements decrease correspondingly. 0.13 micron is currently the smallest feature size available in high volume manufacturing, and is used for the highest end desktop Pentium® 4 processors and for the Mobile Intel® Pentium® 4 Processor – M and Mobile Intel® Pentium® III Processor – M. This technology allows for greater speeds than ever before with lower power consumption, resulting in greater performance and longer battery life in thinner, lighter laptops.
10BaseT 10BaseT is an IEEE standard (802.3) for operating 10 Mbps (megabit per second) Ethernet networks (LANs) with twisted pair cabling and a wiring hub.
2.5G 2.5 generation cellular technology enables increases in data bandwidth available over current 2G cellular networks. 2.5 G technology can be implemented by cellular operators thru software updates to their network, whereas 3 G requires new hardware installations. The most common 2.5 G deployment to-date is General Packet Radio Service, or GPRS.
3G Analog cellular is a first generation mobile communications technology. Digital PCS is the current and second generation. The emerging third generation (3G) will provide increased bandwidth, up to 384 Kbps when a device is stationary or pedestrian speed, 128 Kbps in a car, and 2 Mbps in fixed applications. 3G will work with wireless air interfaces such as EDGE and GSM.
802.11 An over-the-air interface between a wireless client and a base station, 802.11 is a family of specifications developed by the IEEE for wireless LAN technology. 802.11b provides 11 Mbps transmissions in the 2.4GHz bandwidth. The emerging 802.11a standard uses the less crowded 5 GHz bandwidth and transmits wireless data at 54 Mbps.
802.11a 802.11a describes the wireless networking standard for a WLAN that operates in the 5 GHz radio band (ISM--Industrial Scientific Medical frequency band). 802.11a-based WLANs can achieve a maximum speed of 54 Mbps, providing nearly five-times faster networking data rate than 802.11b, and can handle more traffic than 802.11b-based networks.
802.11b 802.11b (commonly known as "Wi-Fi") describes the IEEE wireless networking standard for a WLAN that operates in the 2.4 GHz radio band (ISM--Industrial Scientific Medical frequency band). 802.11b-based WLANs are far more common than 802.11a or 802.11g networks and can achieve a maximum data rate of 11 Mbps per second at distances up to approximately 300 feet. 802.11b was the first WLAN technology offered to consumers and enabled the creation of instant wireless networks in offices and homes. Devices certified by the Wi-Fi Alliance bear the official Wi-Fi logo.
802.11g 802.11g is a proposed standard, describing a wireless networking method for a WLAN that operates in the 2.4 GHz radio band (ISM--Industrial Scientific Medical frequency band). By using OFDM (Orthogonal Frequency Division Multiplexing) technology, 802.11g-based WLANs will be able to achieve a maximum speed of 54 Mbps. 802.11g-compliant equipment, such as wireless Access Points, will be able to provide simultaneous WLAN connectivity for both 802.11g and 802.11b equipment.
90nm 90 nm (nm = nanometer = one-billionth of a meter) refers to a manufacturing process. It is the next generation after the 0.13-micron process. More information.
 




ACPI (Advanced Configuration and Power Interface) Located on the System Manageability Bus, the ACPI enables low-power sleep mode and conserves energy when a system is idle.
AGP (Accelerated Graphics Port) Located on the motherboard, an accelerated graphics port (AGP) is a dedicated high-speed port for moving large blocks of data between a PC graphics controller and the system memory.
AI (Artificial Intelligence) Artificial Intelligence (AI) is used in games for everything from making a computer opponent behave believably like a human opponent to having automated units perform tasks in a realistic manner.
ALU (Arithmetic Logic Unit) The part of the CPU that performs all arithmetic computations, such as addition and multiplication, and all comparison operations, is known as the Arithmetic Logic Unit.
AP (Access Point) A wireless Access Point is a hub that connects many wireless clients to a LAN or to the Internet. An Access Point can be a standalone hardware device or a computer with a wireless network adapter and appropriate software. Wireless Access Points are available for 802.11a, 802.11b, and Dual band 802.11 a/b (Access Points with both 802.11a and 802.11b capability).
Acoustic Pressure Acoustics refers to the