lecture2 fundamentalsof ict
Post on 12-Apr-2017
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Basic operationsof a computer system
1. Input
2. Processing
3. Storage
4. Output
Components of a computer system
1. Hardware2. Software3. Data4. Users
Motherboard
Inputdevices
Processingdevices
Memorydevices
RAM:Volatile memory
ROM: Non-volatile memory
Magnetic storage:
Hard disksStoragedevices
IDE – Integrated Drive Electronics
SCSI – Small Computer Systems Interface
Non-volatile memory
Optical storage: CD/ DVD
Storagedevices
Non-volatile memory
Outputdevices
Communicationdevices
MotherboardChipset and Expansion slots
SystemSoftware
ApplicationSoftware
Can computers think?
Even the most powerfulsupercomputers requirehuman interaction!
Why??
1. Setting up the system
2. Installing software
3. Running programs
4. Managing files
5. Maintaining the system
“Userless” embedded computers
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