The document introduces Taiba Shafique, a computer instructor, and provides an overview of basic computer components and concepts. It defines a computer as an electronic device that accepts input, processes data, provides output, and stores results. The main components are the central processing unit (CPU), memory units, and input/output devices. The CPU contains the arithmetic logic unit (ALU) and control unit (CU), with the ALU performing arithmetic and logical operations and the CU organizing and controlling computer activities by fetching instructions and determining the operations to be performed. Primary and secondary memory are also discussed.

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2. * Welcome To Class
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My Self
Taiba Shafique
Software Engineering
Computer Instructor

3. * Introduction
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• Basic of Computer

4. Computer
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5. * What is Computer ?
An electronic device that:
• accepts data (input),
• manipulates the data (process),
• provides output (output) and
• stores the results (storage).
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6. * Components of Computer
Central processing unit (CPU):
• Most important component also called processor
• Called brain of computer
• It read & execute instruction into the computer
• Speed measured in Hertz
• Consist of ALU & CU
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7. * Components of Computer
•Memory Unit:
• The hardware component which store and execute
instruction temporary
Two memory
• Primary – RAM (Volatile)
• Secondary- ROM (Non Volatile)
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8. * Components of CPU
CU:
• It organize and control all the activities of computer system
• It fetches instruction from memory
• It read the instruction to find what operation is to be
performed
• Control execution of instruction
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9. * Components of CPU
Arithmetic and Logic Unit (ALU):
Performs all the arithmetic and logical operations.
Two Units:
• Arithmetic Unit such as addition, subtraction..
• Logic Unit Such as logical AND, OR etc.
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10. THANKS FOR YOUR
ATTENTION
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11.  Quotation
• “Speak only when you feel your words are better
than silence!”
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12. Now You Are Free To Ask Q.s
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