1.What is computer?
Ans. Computer is an electronic device and a programmable machine which works according to the functions and commands given by the users.
2. Parts of Computer?
Ans.1.RAM 2.Hard
Disk
3.CPU 4.Mother Board
5.SMPS 6.UPS
7.LAN 8.IDE
Cable
9.Sata Cable 10.DVD-ROM
3.Types of Storage Devices/Media?
• Floppy
• CD
(Compact Disk)
• DVD
(Digital Video Disk)
• BD
(Blu-Ray Disk)
• HDD (Hard
Disk)
• PD (Pen
Drive)
• SD Card
(Secure Digital Card)
4.Size Of Media?
• Floppy =
1.44 MB To 4 MB
• CD
= 700 MB
• DVD =
4.7 GB To 8.5 GB
• BD
= 20 GB To 80 GB
• Pen
Drive= 512 MB To 256 GB+
• SD Card =
512 MB To 256 GB+
5.Types Of Devices?
• Input
Device
• Output
Device
• I/O
Devices(Input/output Devices)
Input Device: -
• Web Cam
• Scanner
• Bar-Code
Reader
• Keyboard
Output Device: -
• Monitor
• Speakers
• Printers
• Headphones
• Projector
I/O Device:-
• Touch
Screen
• Modem
• FAX
Machine
• Earphone
Nice
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