Term
| Define telecommunications |
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Definition
| Telecommunications are the electronic transmission of signals for communications, by such means as telephone, radio and television |
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Term
| What are the 6 elements of a telecommunication system |
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Definition
| A gerneral model of telecommunications starts with a sending system such as a computer which sends a message. The sending system transmits the message via a signal using a medium to a modem.The modem may convert the message to another format that may then be transmitted again via signal using medium to a modem connected to the receiving device (eg another computer). |
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Term
| What are the two types of communications media? |
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Definition
- Guided Transmission Media
- Wireless |
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Term
| What are the types of wireless? |
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Definition
- Blue tooth
- Near Field Communications (NFC)
- Ultra wideband (UWB)
- Wi-fi |
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Term
| What are the types of guided transmission media? |
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Definition
- Radio frequency range
- Microwave
- Infrared frequency range |
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Term
| What are the types of hardware used in regards to telecommunications |
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Definition
- Modem
- Fax modem
- Multiplexer
- PBX
- Front end processor
- Switch
- Bridge
- Router
- Gateway |
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Term
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Definition
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Term
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Definition
| A network is a group of communication medias, devices and software needed to connect two or more computer systems of devices |
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Term
| What are the four types of networks? |
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Definition
Local Area Network - A network within a small area such as a home, office etc.
Wide Area Network - A network that connects large geographical regions
Personal Area Network - a wireless network that connects IT devices within a range of 10m
Metropolitan Area Network - connects users and their computers in a geographical region usually between 50-150km (Eg single campus LAN, networks within a city) |
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Term
| Name the 5 topologies on a network |
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Definition
- Ring
- Bus
- Hierarchical
- Star
- Hybrid |
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Term
| Define two different services offered by telecommunication companies? |
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Definition
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Term
| What is the purpose of a DBMS? |
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Definition
| Keep track of data, include meta-data around related themes and to allow shared access while keeping data integrity |
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Term
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Definition
Database management system
A DBMS is the software through which users and other application software interact with the database. |
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Term
| List some examples of enterprise and personal DBMS software |
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Definition
Enterprise
- IBM DB2
- Oracle
- Microsoft SQL server
Personal
- Microsoft Access
- Openoffice.org |
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Term
| Compare/Contrast personal/enterprise DBMS |
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Definition
| A enterprise DBMS are capable of managing large databases 24/7 and support several thousands users as opposed to personal databases which manage smaller databases with more limited support for multi-user access |
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