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Computer 101

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Course content:Lesson 1. Computer 101

Lesson 2. The PC Tower

Lesson 3. 32 Bit vs. 64 Bit



Computer 101

Lesson 1. Basic Computer Lesson

• Differentiate installation from download

• Explain what an operating system is.

• Identify the difference among the computer types.

This course will help you:



• Installation – also known as set up, is the act of putting the program onto a computer system so that it can be executed

• Download – to copy data (usually and entire file) from a main source to a peripheral device

Terminologies:



• An operating system is a program designed to run other programs on a computer

• It is considered the backbone of a computer, managing both software and hardware resources

What is an Operating System?



• Operating systems are responsible for everything from the control and allocation of memory to recognizing input from external devices and transmitting output to computer displays

• They also manage files on computer hard drives and control peripherals, like printers and scanners.Customer Service and

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Operating Systems



Personal Computer Types



• Desktop Computer

A computer designed to fit comfortably on top of a desk, typically with the monitor sitting on top of the computer.



Notebook/Laptop Computer

• Aside from size, the principal difference between a notebook computer and a personal computer is the display screen as well as the price.

• An extremely lightweight personal computer. Notebook computers typically weigh less than 6 pounds and are small enough to fit easily in a briefcase.



MS Store Companion PCs

Netbook Computers

Slate PCs



The PC Tower

Lesson 2. Meet your internal hardware!

• Identify the parts of a PC tower.

• Identify the function of each internal hardware.

This course will help you:



The PC Tower





• The power supply provides the correct electricity for each component.

• The power supply converts electricity from the wall outlet into electricity that the different internal components can use

Power Supply



Motherboard

• The motherboard is like the nervous system of a human being, it connects all the internal components together. All communication is done over the motherboard.



• The processor, or CPU, of a computer is basically the brains of the computer

Processor or CPU

• The processor is responsible for interpreting every code it receives from the other computer components, and making it usable to your operating system



Hard Drive

• Hard drive capacity is measure in gigabytes, or GB

• Two ways that hard drives can connect to the motherboard: SATA and IDE

• The part of the computer that stores all your information (If you upload a picture to your computer, it is stored on the hard drive)



Video Card

• A graphic/video card is the component of your computer that interprets video signal

• These cards are necessary so that you can connect a monitor to your computer.



RAM• Random Access Memory is the part of

your computer that is used as instant memory

• RAM is always in use. For example, if you run many programs at once, you may want to upgrade your RAM because your computer is using more memory



Optical Drive

• An optical drive is many times the drive you would use to burn CDs, DVDs, Blu-Ray discs and more.



32 Bit vs. 64 Bit

Lesson 3. Comparison of 2 technologies



• Could process a maximum of 4 Gig RAM

• Most software and operating system codes are 32-bit compatible

• A 32-bit OS will run on a 32-bit or 64-bit processor without any problem.

• A 32-bit application will run on a 32-bit or 64-bit OS without any problem.

32 Bit Systems



• 64-bit application will only run on a 64-bit OS and a 64-bit OS will only run on a 64-bit processor.

• Supports up to 16 TB of RAM• Requires a 64 bit processor

64 Bit Systems



Wrap Up

• Discussed the difference between installation and download

• Explained what an operating system is.

• Identified the different parts of the computer tower and its function

• Differentiated between 32 Bit and 64 Bit systems

Questions?



Thank You.



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