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STORAGE AND OUTPUT DEVICES
1. TOPICS:
STORAGE DEVICES
HARD DISK
CD
DVD
MEMORY CARD
USB FLASH DRIVE
OPUTPUT DEVICES
MONITOR
PRINTER
PLOTTER
SPEAKER
2. THE DEVICES THAT ARE USED TO
STORE PROGRAMS THAT ARE NOT
CURRENTLY USED BY THE
COMPUTER. THEY ARE KNOWN ASS
MASS STORAGE DEVICES OR
SECONDARY MEMORY.
3. THE FOLLOWING ARE SOME TYPES
OF PORTABLE STORAGE DEVICES:
• HARD DISK
• CD (COMPACT DISK)
• DVD (DIGITAL VERSATILE DISK)
• MEMORY CARDS
• USB FLASH DRIVES
4. A MEGNATIC STORAGE DEVICE
USED TO STORE COMPUTER
DATA.
IT HAS CAPACITY OF
HUNDREEDS OF GIGABYTE(GB).
IT IS FIXED INSIDE THE
COMPUTER CASING.
PORTABLE HARD DISK IS ALSO
AVAILABLE.
5. IT HAS STORAGE CAPACITY OF
700 MEGABYTES (MB).
IT IS 1.2 MILIMETER THICK.
ITS DIAMETER IS 120
MILLIMETERS.
CD DRIVE IS USED TO READ
DATA FROM OR WRITE DATA
TO A CD.
6. IT HAS THE SAME THICNESS
AND DIAMETER AS A CD.
ITS STORAGE CAPACITY IS IN
RANGE OF 4 TO 16 GB.
A DVD WRITER IS INSTALLED IN
COMPUTER TO READ DATA
FROM OR WRITE DATA TO A
DVD.
A CD CAN BE USED IN DVD
WRITER.
7. IT IS A SMALL STORAGE
DEVICE THAT HAS STORAGE
CAPACITY OF FEW GB.
IT IS AVAILABLE WITH
DIFFERENT SIZES AND
STORAGE CAPACITIES.
THEY ARE GENERALY USED
IN LAPTOP COMPUTERS.
8. IT IS A SMALL PORTABLE
STORAGE DEVICE THAT CAN BE
CONNECTED TO THE COMPUTER
THROUGH USB PORT.
IT IS ALSO KNOWN AS USB
MEMORY.
IT IS VERY FAST.
ITS STORAGE CAPACITY IS OF 128
GB.
9. OUTPUT DEVICES ARE USED TO DISPLAY TEXT,
GRAPHICS, AND IMAGES ON THE MONITOR
SCREEN OR PRINT INFORMATION ON A PAPER.
10. INFORMATION ENTERED INTO THE COMPUTER IS
CALLED SOFT COPY.
ANYTHING PRINTED ON PAPER IS CALLED
HARDCOPY OR PRINTOUT.
11. THE FOLLOWING ARE THE
TYPES OF OUTPUT DEVICES:
• MONITOR
• PTINTER
• PLOTTER
• SPEAKER
12. IT IS AN OUTPUT
DEVICE THAT HAS A
SCREEN ON WHICH
INFORMATION IS
DISPLAYED.
13. THERE ARE TWO TYPES OF
MONITORS:
• CRT (CATHODE RAY TUBE)
• LCD (LIQUID CRYSTAL
DISPLAY)
14. A PRINTER IS AN OUTPUT
DEVICE THAT IS USED TO PRINT
TEXT AND GRAPHICS ON PAPER
WHICH IS KNOWN AS
HARDCOPY.
15. THERE ARE TWO TYPES OF
PRINTERS:
• IMPACT PRINTER
• NON – IMPACT PRINTER
16. PLOTTER IS AN OUTPUT DEVICE
THAT IS USED FOR PRINTING
ENGINEERING DRAWINGS, MACHINE
PARTS, BUILDING DESIGN, MAPS,
CHARTS, ETC. ON LARGE SIZE PAPERS
OR SHEETS.
17. THERE ARE TWO TYPES OF
PLOTTERS:
• INK PLOTTER
• PEN PLOTTER
18. SPEAKER IS AN OUTPUT
DEVICE THAT PRODUCE
AUDIO AS OUTPUT. A PAIR OF
SPEAKER IS ATTACHED WITH
SOUND CARD ON THE
MOTHERBOARD. SPEAKERS
ARE COMMONLY USED WITH
MULTIMEDIA SOFTWARE FOR
PLAYING MUSIC AND VIDEOS
ON COMPUTER.
