Computers 101Capt Froberg

OutlineWhat is a computer?

What components does a computer need?Physical“Cloud”

What is a virtual computer?

What is a computer?

Your thoughts….

What is a computer?

So says Wikipedia:“A computer is a general purpose device that can be programmed to carry out a finite set of arithmetic or logical operations.”

Note: It doesn’t mention networking, internet, world wide web, etc

What is a computer?My definition:

A device that can have programmable pieces of software that will execute upon a set, or series of, hardware components

Bottom-lineIt’s hardware and software a

user may leverage to have desired affects take place

What is a computer?

Input/ Output

Software

Hardware

What components does a computer need?Physical Components

HDDOptical DriveProcessors (Central and Graphics)MemoryExternal Storage DevicesPeripherals (Monitors, Keyboard, Mice, etc)

Kickin’ it old school: Floppy Drives, Laser Disks, Tape Drives, Punch

Cards, etc

In recent years a “new concept” of “cloud computing” has been revitalized

The cloud leverages a central, external set of capabilities (processing, storage, etc) that can be accessed from nearly any Internet connected device

“Cloud” ComponentsInternetInternet BrowserCustomized lightweight software (e.g. streaming,

collaboration) As seen in Google, Apple, Netflix, and other products

What components does a computer need?

What is a virtual computer?

Your thoughts….

What is a virtual computer?

It’s a computer running within a computer

What is a virtual computer?Keywords

Host Machine The physical hardware upon which a virtual

computer may execute Virtual Machine

A single instance of a virtual computer Also known as a VM

Hypervisor The software needed to allow pass through of a VM

to a Host Machine’s Hardware

What is a virtual computer?Key to success: The Hypervisor

It allows for pass through of virtual computing operations in a host machine OS to physical components

VMWare Hypervisor Example

Virtual Box Hypervisor Example

Example pass through of VM’s to a Host Machine’s Hardware

Host Machine

VM’s

ReviewWhat is a computer?

What components does a computer need?Physical“Cloud”

What is a virtual computer?