Course Content
Types of Computers
In Grades 10 and 11, you learned about different types of computers, such as the following:
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Computer Applications Technology (CAT) – Grade 12
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These are some (not all) of the computer types:

Server: A server is a computer that has powerful processors, large hard drives and plenty of memory power. They are used in networks where large amounts of data need to be stored so that the computers on this network can access the data. Servers also make it possible for computers on the same network to share other devices, such  as printers.
Workstation: A workstation is a computer intended for individual use that is faster and more capable than a personal computer. It’s intended for business or professional use (rather than home or recreational use). Workstations and  applications designed for them are used by small engineering companies, architects, and graphic designers.
Personal computers (microcomputers)/Desktop: A personal computer, or more commonly known as a PC, was commonly referred to as a “microcomputer”, because, when compared to the large systems that most businesses use, it is a compact computer with a complete system. They are the smallest, least expensive and most used type of computer. They are physically smaller, have a relatively small memory, have less processing power, and permit fewer peripherals than super and mainframe computers. Desktop PCs are not designed to be carried around because they are made up of separate components.
Laptops/Notebooks: Laptops are also known as “notebooks”. They are portable PCs that combine the display, keyboard, processor, memory, hard drive and cursor positioning device (a touchpad or trackpad) all in one package. Laptops are  and as a result, are completely portable.
Tablets: Tablets are smaller than normal laptops and are ultra-portable (easy to carry). They are generally cheaper than brand new laptops, and their processors and other components are less powerful than that of regular laptops.
Smartphones: Handheld-sized computers that use flash memory instead of a hard drive for storage. They have virtual keyboards and use touch-screen technology.
Smartphones are lightweight and have a good battery life. (The battery life of smartphones varies, depending on the make.)
Embedded systems: Embedded systems, or dedicated devices, are stand-alone electronic hardware that is designed to perform dedicated computing tasks, for example automatic teller machines (ATMs), MP3 players and so on.

In general, computers have certain economic benefits – for example, they save paper, labour, communication speed and cost, and so on

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