What is a Computer?Computers are not very intelligent devices, but they handle instructions flawlessly and fast. They must follow explicit directions from both the user and computer programmer.
Computers are really nothing more than a very powerful calculator with some great accessories. Applications like word processing and games are just a very complex math problem.
Software and Hardware:
If you use a player piano as an analogy, the piano can be thought of as the hardware and the roll of music as the software.The software a series of very simple computer instructions carefully organized to complete complex tasks. These instructions are written in programming languages (like BASIC, PASCAL, C...) to help simplify the development of applications.The hardware is what sits on your desk and executes the software instructions. The player piano is useless unless the roll of music has been written correctly.
Hardware Components
Input Devices -- "How to tell it what to do"
Input Devices -- "How to tell it what to do"
A keyboard and mouse are the standard way to interact with the computer. Other devices include joysticks and game pads used primarly for games.
Output Devices -- "How it shows you what it is doing"
The monitor (the screen) is how the computer sends information back to you, whether it be surfing the web or writing a memo. A printer iStorage Devices .
"How it saves data and programs"s also an output device.
Hard disk drives are an internal, higher capacity drive which also stores the operating system which runs when you power on t
he computer.
he computer.Floppy" disk drive sallow you to save work on small disks and take the data with you.
Memory -- "How the processor stores and uses immediate data"
When you use a program, the computer loads a portion of the program from the hard drive to the much faster memory (RAM). When you "save" your work or quit the program, the data gets written back to the hard drive.
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