PENGENALAN KOMPUTER BAB 3
++Alat-alat input, output, storage.
INPUT
1.Keyboard
ü The most familiar input device
ü Used to enter letters, numbers and special characters
--Standard keyboard
ü Ergonomic keyboards
ü To address possible medical problems
ü Wireless keyboard
ü Folding keyboards
ü Used with palm-sized computers
ü One-handed keyboards
ü Keyboards printed on membranes
2. Pointing Devices
ü Mouse
ü Touchpad
ü Pointing stick
ü Trackball
ü Joystick
ü Graphics tablet
ü Touch screen
ü Stylus
3.Reading Tools
Read marks representing codes specifically designed for computer input
CONTOH ALAT-ALATNYA
ü Optical-mark readers
ü Magnetic-ink character readers
ü Bar-code readers
ü Pen scanners
ü Tablet PC
ü Smart whiteboard
ü Radio Frequency Identification Readers (RFID)
4. Digitizing the Real World
Scanners capture and digitize printed images.
Ø Flatbed
Ø Slide
Ø Drum
Ø Sheet-fed
5. Digital camera
Ø Snapshots captured as digital images
Ø Digital images stored as bit patterns on disks or other digital storage media
6. Audio digitizers
7. Sensor
· OUTPUT
1.Screen Output
o A monitor or video display terminal (VDT) displays characters, graphics, photographic images, animation and video.
2. Paper Output
3. Audio(SPEAKER)
· STORAGE
1. Output You Can Hear
Ø Sound card
2. Magnetic Disks
Ø Random data access
Ø Floppy disks
Ø Hard disks
Ø Removable media (Zip & Jaz disks)
3. Optical Disks
Ø CD-ROM
q Optical drives that read CD-ROMs
Ø CD-R
q WORM media (write-once, read many)
Ø CD-RW
q Can read CD-ROMs and write, erase and
rewrite data onto CD-R & CD-RW disks
Ø DVD (Digital Versatile Disks)
q Store and distribute all kinds of data
q Hold between 3.8 and 17 gigabytes of information
Ø DVD-ROM drives
q Can play DVD movies, read DVD data disks
q Read standard CD-ROMs, and play audio CDs
q Read-only: can’t record data, music, or movies
Ø DVD-RAM drives
q Can read, erase, and write data (but not DVD video) on multi-gigabyte
DVD-R (but not CD-R or CD-RW) media
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