Knowledge Base - GeekInterview.com

What is SMS

Wed, 30 Apr 2008 02:50:57 -0500

SMS, which stands for Short Message Service and is also referred to as "text messaging," is a cheaper alternative to making phone calls from mobile phone to mobile phone, instead sending short messages between them. The 1985 Global System for Mobile communications (GSM) series of standards included SMS among its standards. The original SMS standard served as a means of sending messag
Submitted by admin Category: Wireless

What is Symbian

Sun, 27 Apr 2008 06:20:10 -0500

Symbian is a proprietary operating system for wireless telecommunications, succeeding Psion Software's EPOC. Released in 1999, it is owned by a number of companies: Nokia with 47.9% of the share, Ericsson with 15.6%, Sony Ericsson with 13.1%, Panasonic with 10.5%, Siemens AG with 8.4%, and Samsung with 4.5%. Symbian was designed for handheld mobile devices by Symbian Ltd. It features associate
Submitted by admin Category: Wireless

What is TDMA

Fri, 25 Apr 2008 07:25:25 -0500

TDMA, which stands for time division multiple access, is a method of channel access developed specifically for shared medium networks, such as radio broadcast. It is a form of time-division multiplexing; however, instead of having one transmitter connected to one receiver, TDMA systems may connect multiple transmitters to a receiver. Several users are able to share the same frequency channel t
Submitted by admin Category: Wireless

What is ThickNet

Thu, 24 Apr 2008 15:29:42 -0500

ThickNet, also known as 10BASE5 or IEEE 802.3-1985, is an Ethernet standard that requires a specialized coaxial cable to transmit Ethernet frames at a rate of 10Mbps. It derives its nickname, which is a portmanteau of "Thick Ethernet," from the thick coaxial cable it uses, which is 0.375 inches in diameter. The designation 10BASE5, assigned to the ThickNet standard by the Institute o
Submitted by admin Category: Networking

What is ThinNet

Wed, 23 Apr 2008 06:26:20 -0500

ThinNet, also known as 10BASE2, IEEE 802.3, or "CheaperNet," is an early Ethernet standard that makes use of industry-standard RG-58 coaxial communications cables connected to BNC T-connectors. The standard has been nicknamed as such due to the thin and relatively inexpensive coaxial cables or "thinwire" used, which are 5 millimeters (0.2 inches) in diameter; "ThinNet"
Submitted by admin Category: Networking

What is IEEE

Sun, 20 Apr 2008 02:19:24 -0500

IEEE, which stands for the Institute of Electrical and Electronics Engineers, is an international, non-profit, professional organization started in 1963 as the merging of two organizations, the Institute of Radio Engineers (IRE) and the American Institute of Electrical Engineers (AIEE), with the objective of advancing technology in electrical, electronics, communications, and computer engineering,
Submitted by admin Category: Networking

What is PhoneNet

Thu, 17 Apr 2008 23:59:37 -0500

PhoneNet, developed by Farallon Computing (now known as Netopia), is an implementation of the AppleTalk physical layer. It made use of standard unshielded twisted-pair telephone wire, in the form of four-conductor patch cords, with 6 position modular connectors (same as used in the popular RJ11 telephone connectors). These modulators were connected to a PhoneNet transceiver. PhoneNet networks
Submitted by admin Category: Networking

What is Data Mapping

Thu, 17 Apr 2008 23:11:20 -0500

Data mapping is a very important aspect in data integration. In fact, it is the first step in the many complex tasks associated with data integration which include data transformation or data mediation between a data source and its destination; identification of relationships in data which is vital in analysis of data lineage; discovery of sensitive data like some last digits in a social security
Submitted by admin Category: Data Warehouse

What is Common Metadata

Tue, 15 Apr 2008 19:38:38 -0500

In simple but technical term, metadata is a data that describes another data. It can be any item describing an individual datum or a collection of multiple content items. Metadata is very useful in facilitating the use, management and understanding of data in a large data warehouse. Depending on the type of data and the context where the data is being used, metadata required to effectively manage
Submitted by admin Category: Data Warehouse

What is LocalTalk

Mon, 14 Apr 2008 17:43:01 -0500

LocalTalk is a system of shielded twisted-pair cabling with 3-pin Mini-Deutsches Institut für Normung (Mini-DIN) connectors. The cabling plugs into self-terminating transceivers and operates at a data transmission rate of 230.4 kbps. Originally released as "AppleTalk Personal Network," LocalTalk is one implementation of the physical layer of the Apple Computer networking system know
Submitted by admin Category: Networking