Are tools used to assist in conveying information during a presentation. When a speaker is verbally addressing an audience it is often necessary to use supplementary equipment and media to clarify the point. [ If the audience is large or the speaker is soft-spoken, a public address system may be employed
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To put it simple, an Address Book is basically where you can store peoples names, addresses and most importantly emails so you can easily contact them. Its pretty much like your contacts on your phone.
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If you are running Windows check task manager and see if any background process if running if there is a background process of command prompt or powershell, there is a chance that there is a backdoor running in your system, you can just right click and end the task it should just kick the hacker off the server.
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The GCSE Computing MOOC (created with Cambridge University Press and Raspberry Pi) can be used either as a course or a flexible teaching resource,
