INPUT DEVICE
- from human to computer
- instructions into computer
- ex; mpuse. microphone, scanner
OUTPUT DEVICE
- from computer to human
- hardware component
- ex; speaker
SYSTEM UNIT
- contains electronic components
STORAGE DEVICE
- holds information
- ex; external hard disk, pendrive
COMMUNICATION DEVICE
- enables information to send and receive
- ex; email
WHAT IS APPLICATION SOFTWARE?
- Consists of programs designed to make users more productive.
- ex ; Adobe photoshop, video players, powerpoint
- Types of software ;
- Packaged software ; Purchase software packaged
- Custom software ; Buy each software separately
- Web application ; Using application in web
- Open source software ; Download a software and using it for trial. If you want it, you must buy
- Shareware ; Available F.O.C & often distributed informally for evaluation
- Freeware ; Download it & you can use it automatically
- Public-Domain software ; No ownership & no restriction as to what can be done to the software
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