Computer Architecture Notes

• Input Devices
• Keyboard
• Mouse
• Track Pad
• Touch Screen
• Camera
• Microphone
• Scanner
• Barcode Reader
• Joystick
• Gamepad
• Trackballs
• Pen input
• Magnetic Keycards
• Output Devices
• Monitor
• Speaker
• Printer
• Projector
• Radio
• Both Input and Output
• Modems
• Network Cards
• Touch Screen
• Headsets
• Fax
• Audio Cards
• USB
• RAM (Random Access Memory)
• Volatile Memory - erases everything when power is switched off
• Stores current programs and data
• CPU (Central Processing Unit)
• ALU (Arithmetic Logic Unit)
• Performs arithmetic operations and evaluates logical statements to true or false
• CU (Control Unit)
• Oversees execution of the program statement after statement