CHAPTER 4

CHAPTER 4

DEFINITION OF HARDWARE

- Hardware, in the computer world, refers to the physical components that make up a computer system.

DEFINITION OF SOFTWARE

-  Software consists of carefully-organized instructions and code written by programmers in any of various special computer languages.

SIX CATEGORIES OF HARDWARE

INPUT DEVICE

• Enter information and commands.

OUTPUT DEVICE

• Hear, see, or otherwise recognized the result of information.

STORAGE DEVICE

• Store information for use at a later time.

PROCESSING

• CPU  : Hardware that interprets and execute software and coordinates all hardware.
• RAM : Temporary holdings area for information and software.

TELECOMMUNICATION DEVICE

• Sent information to and received it from another person or computer in a network.

CONNECTING DEVICE 

• Connect peripherals to computer, such as cable, port, and expansion boards.

TWO CATEGORIES OF SOFTWARE

APPLICATION SOFTWARE

• To solve specific problem or perform specific task.

SYSTEM SOFTWARE

• Handle task specific to technology management and coordinates the interaction of all technology device. 

CATEGORIES OF COMPUTER (BY SIZED)

PERSONAL DIGITAL ASSISTANT

• Small handheld computer.

TABLET PC

• Pen-based computer with the functionality.

NOTEBOOK COMPUTER

• Small, portable, and fully functional.

DESKTOP COMPUTER (MICROCOMPUTER)

• Most popular type of personal computer.

MINICOMPUTER

• Meets needs of several people simultaneously in a small or medium size business.

MAIN FRAME COMPUTER

• Meets needs of hundreds of people in a large business.

SUPER COMPUTER

• Fastest, most powerful, and most expensive type of computer.