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  SS 2 TOPIC: WIRELESS NETWORK Introduction Wireless refers to any type of computer network that is not connected by cables of any kind. It is a method by which homes, telecommunications networks and enterprise(business) installation avoid the costly process of introducing cables into building, or as a connection between various equipment locations. Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure. Advantages of Wireless Network          i.             Mobility: with a laptop computer or mobile device, access can be available throughout a school, at the mall, on an airplane etc.        ii.             Fast setup: if your computer has a wir...

  SS 1 TOPIC: APPLICATION OF ICT II Introduction The main function of any telecommunication network is to provide efficient transmission of information from point of origin to a point of termination. Telecommunication Network A telecommunication network is a collection of nodes and links that is capable of carrying audio, visual and data communications. It is a combination of nodes and links which are arranged in such a way that the message may pass from one part of the network to the other by travelling over variable nodes. Smart messaging Smart messaging was developed by Nokia and found only on Nokia phones. It allows people to do simple picture messaging with low cost, quick message transmission and high simplicity of regular text messages. 1.      SMS (short messaging service): is the most common type of text message and it is supported by a large number of mobile phones. It allows a maximum of 160 characters per message. 2.   ...

  JSS 3💥 TOPIC: INTERNET OBJECTIVE     i.      Define search engine   ii.      List examples of search engines.  iii.    List the uses of search engines. Introduction In computing, series of data and information are worked on. It is very possible to forget the actual location where one has stored a particular data on a personal computer or could not even remember where the data or information is located on the internet. A software application has be designed to help solve this problem of finding data either the location is known or unknown. This program is referred to as a SEARCH ENGINE. Search Engine: A search engine is an information retrieval system that helps to locate data or information either on a personal computer or on the WWW network. It is a computer program designed to search for documents containing a particular word or words on the internet. Search engine presents or brings to the u...

  JSS 2 TOPIC: NUMBER BASE Objective: At the end of this lesson, you should be able to: 1.        Define number base system 2.        List different number system 3. Perform conversion of numbers from one base to another Introduction Number based system is the character representations in computer. Its translator converts instructions passed into the computer to machine-readable language, which is in the form of 0s and 1s. these are called binary digits because it is binary number system (base 2) that has such digits only in its counting system. The word bit is formed from binary digits. In most cases 0 represents OFF and 1 represents ON.   Number base System There are different number systems depending on the one being used at any particular time and place. E.g. Base 10 is called Decimal Number System. Base 2 is called Binary Number System. Base 2 is called Octal Number System. Base 16 is called H...