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Give and describes types of the followiing - Coggle Diagram
Give and describes types of the followiing
system unit
• Motherboard - main circuit board in system unit.
• Memory – electronic components that store instructions, data and results
• Adapter card – memory chips that store permanent data and instructions
• Expansion slot – an opening, or socket on the motherboard that can hold an adapter card
input device
• Keyboard – cordless keyboard and ergonomic keyboard
divided by typing area, numeric keypad,function keys, special keys that issues commands
• Mouse – pointing device that fits under palm of hand
• Light pen – is handheld input device that can detect light
• Touch screen – is a touch areas of screen with finger. It often used with kiosks
• Stylus – looks like a ballpoint pen but uses pressure to write text and draw lines.
output device
• LCD monitor – uses liquid crystal display.
• CRT monitor – screen coated with tiny dots of phospor material
• Plasma monitor – displays image by applying voltage to layer of gas
• Nonimpact printer – forms character and graphics without striking paper
• Impact printer – use a print head containing a number of metal pins which strike an inked ribbon placed between the print head and the paper
storage device
• Floppy disk – is a portable, inexpensive storage medium (also called diskette)
• External hard disk – freestanding hard disk that connects to system unit
• Removable hard disk – hard disk that you insert and remove from hard disk drive
• Optical disk – can be read only or read/write
• CD-Rom – compact disc read only memory