External Hardware Flashcards
Name parts of a barcode reader
Laser, lens, photodiodes, mirror
Which parts of a laser printer heat the paper, fixing
the toner to the page?
Fusers
Which technology is used for transferring
information wirelessly between a tag and a reader?
Radio frequency identification (RFID)
What type of diagrams, consisting of light and dark
portions, contain information that can be read by a
computer?
Barcodes
Which type of RFID tag can be read from many
meters away: active or passive?
Active
In a hard-disk drive, what is mounted at the end of
an actuating arm?
The read/write head
For what do the letters CMOS stand?
Complementary metal oxide
semiconductor
Which form of secondary storage is best suited for
use in phones and tablets?
Solid-state drives (SSDs)
Name one way of increasing the capacity of a
hard-disk drive without altering its overall size
- Adding more platters
- Decreasing the width of tracks
Which part of a digital camera regulates the path of
light between the lens and the sensor?
The shutter
Which form of secondary storage has very high read
and write speeds?
Solid-state drives (SSDs)
What type of memory cells are used in solid-state
drives?
NAND flash memory cells
Name the two parts of a passive RFID tag
- Chip
- Antenna
Name two characteristics that makes SSDs suitable
for use in portable devices
- No moving parts
- Low power consumption
- Lightweight
Which type of secondary storage has just one
continuous track?
Optical disks
Which four colours do the letters CYMK stand for?
Cyan, Yellow, Magenta, Black
What names are given to the sections of an optical
disk’s surface that have been permanently deformed
by a laser?
Pits
