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21 Cards in this Set
- Front
- Back
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What is a system?
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Input -> Process -> Output
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What is a hardware?
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The physical parts of a computer.
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An example of a hardware...
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A computer, a monitor
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What is a software?
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A collection of instructions that tell the computer hardware what to do.
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An example of a software...
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Windows XP, Mac OS
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Examples of input devices...
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Keyboard, mouse
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Examples of output devices...
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Monitor, printer
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Examples of secondary storage devices...
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DVD R/W drive, removable hard drive
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Difference between hardwares and softwares?
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Hardwares are things that you can see and touch while softwares are instructions that tell the hardwares what to do. Without the hardwares, the softwares are useless
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What are input devices?
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Devices that pass data into the computer
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What are output devices?
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Devices that take data away from the computer
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What are secondary storage devices?
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Devices that can store data in a computer system
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Main components of a computer...
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central processing unit (CPU),
main/internal memory (including ROM and RAM), input devices, output devices, secondary/backing storage. |
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Examples of operating systems...
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Graphic user interface (GUI),
Command-line interface (CLI) |
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Different types of computers...
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Personal computer (PC) or Desktop
Mainframe Laptop Palmtop Personal digital assistant (PDA). |
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Whats a central processing unit?
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A device that carries out software instructions. They are plugged into the motherboard and have a large fan attached to keep them cool.
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What is the main memory?
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Any data or instructions that are to be processed by the CPU must be placed into main memory
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What is a Random Access Memory (RAM)?
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The part of the computer that temporarily stores the instructions that the computer is running, and the data it is processing. It is volatile, so when the computer shuts down all the data is lost.
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What is a Read-only Memory (ROM)?
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The software checks the computer’s hardware and then loads the operating system. It is non volatile, the data it contains is never lost.
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What is a Graphical User Interface (GUI)?
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An interface built around visual things. Windows are regions of the screen used to display information
Icons are small pictures that are used to represent folders, software, etc. Menus are lists of options the user can select from A pointer is an arrow that can be moved around the screen and is used to select things |
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Example of GUI...
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Windows XP
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