By John Lancaster (auth.)
•••••••• Preface This ebook is meant that will help you effectively whole the attempt for Module 1 of the eu computing device using Licence (ECDL). in spite of the fact that prior to we begin operating in the course of the genuine content material of the consultant you could locate it worthwhile to grasp a bit hit extra concerning the ECDL in most cases and the place this actual Module suits into the final framework. what's the ECDL? the eu machine using Licence (ECDL) is a European-wide qualification that permits humans to illustrate their competence in computing device talents. It certifies the candidate's wisdom and competence in laptop utilization at a uncomplicated point and relies upon a unmarried agreed syllabus. This syllabus covers a variety of particular wisdom components and ability units, that are damaged down into seven modules. all the modules has to be handed ahead of the ECDL certificates might be provided, even though they are taken in any order yet needs to be accomplished inside a 3 yr interval. trying out of applicants is at audited trying out centres, and profitable finishing touch of the try will reveal the holder's uncomplicated wisdom and competence in utilizing a private computing device and customary laptop functions. The implementation of the ECDL within the united kingdom is being controlled via the British computing device Society. it truly is starting to be at an enormous cost and is decided to develop into the main extensively regarded qualification within the box of work-related machine use.
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Of trag ) diCe. Yformal1c . , file. and dire ton'e. 26 J. 1. Measuring Memory •• e ••••• The stated size of computer memory can be confusing at first glance. Why is a Kilo 1024 and not 1000? A little time spent studying the origins, design and development of computer systems can help to unravel this mystery. Computers are essentially digital devices. They work with data that is physically at one of two different voltage levels. In practice these two levels are referred to as '0' and ' 1'. For our purposes it does not really matter if the levels are OV and +5V, which are typical values, just that there are two different entities.
35 Module 1: Basic Concepts of Information Technology Software lnderstand the difference helw '11 applicati nand / m oftuar . Unci rstalld the fimcti I ifJeratillR yst m. ,~ B awar if the / rm raphical er Inter/a e, and the adl'antage. if lIch interface. Be aware 0/ the common oflwar applications tORe/her with their II 'nderstand h w c mputer 36 J. Lancaster, Basic Concepts of Information Technology © The British Computer Society 2000 ~' I ms ar d velop d . • . 1. Types of Software Software •••• Software is the name given to a set of instructions, or programs, that can be run on a computer.
Explain the terms bit and byte. How are these terms related to a character and a field? 2. Explain how main memory (RAM) and secondary storage are used for the storage of programs 3. A well-meaning friend advises you on how to improve your computer performance. They suggest a) Installing more RAM. b) Installing a faster processor. c) Changing the type of mouse used. d) Reducing the number of programs running at anyone time Which courses of action do you think might help and which would not? 4. Briefly describe three different secondary storage devices stating a typical application, an advantage and a disadvantage.
Basic Concepts of Information Technology: ECDL — the European PC standard by John Lancaster (auth.)