Computer Devices
af Pam Ingram
1. Output
1.1. monitor
1.1.1. pixel or picture element
1.1.2. resolution refers to clarity and crispness of picture
1.1.3. CRT screens - bulky
1.2. LCD screens-flat screen
1.2.1. takes up less space on computer desk
1.2.1.1. cost more and can be messed up easier in a busy classroom
1.3. Printer
1.3.1. Laser
1.3.2. Ink jet
1.3.3. resolution measured in dpi (dots per inch)
1.3.4. multipurpose devices or better known as all-in-one printer
2. Input
2.1. Keyboard
2.1.1. set up as a typewriter
2.2. Mouse
2.2.1. trackball
2.2.1.1. helps if there is not a lot of space to move a mouse around, because most of the movement is done by the ball
2.2.2. touch pad -laptop