When you contact me, it would be very helpful if you have ready some information about the computer you are currently using.
The operating system is the software that controls your computer. I will be able to identify your operating system when I first visit you, but it does help to know in advance so that I can prepare material for you if need be.
By far the most commonly-used operating systems are versions of Microsoft Windows. A new computer bought from a high street retailer now will be using the Windows 10 operating system. Microsoft will be updating this automatically for you every 6 months.
The rival to Microsoft is AppleMac, who have a minority but significantly loyal following. The desktop iMac and the laptop MacBook have used operating systems named after big cats - Panther, Tiger etc. but the latest ones have been named after geological rock formations - Yosemite, El Capitan, High Sierra etc. The hand-held iPad and other ‘tablet’ computers are now very popular.
The great majority of my clients want to use the computer for communication by email and finding information on the Web. Internet Service Providers (ISPs) are numerous and very competitive: BT, Sky, TalkTalk (now including Tiscali and AOL), EE, VirginMedia...
A desktop computer is a box or "tower", which contains the computer itself, with a separate screen and keyboard. It requires a desk to hold it.
A laptop is portable. The screen is in the folding lid.
A tablet computer is a thin hand-held device, about the size of an A5 hand-bill. They are easily portable and good for email and messaging, using the Web and as a camera! Apple's iPad and Samsung's Galaxy Tab are examples of tablets.
The Internet is the system of telephone lines and satellite links that connect computers around the world.
The Web is the network of server computers or hosts that hold pages of information - websites. These are open to access by other computers, like yours and mine. This network is the "World-Wide Web".
A broadband connection enables you to use the telephone while you are connected to the Internet. The connection is broad enough for both.