1. Computer Hardware Introduction to Computer Components and Terminology

2. Computer Types Personal Data Assistant (“PDA”), now more commonly called a “tablet” or iPad Notebook Laptop PC Desktop PC (also called a PC “tower”) Server Computers are categorized as one of several types:

3. Differentiating Types A PDA is a handheld computing device designed to access and store data as well as accessing stored music, personal datebook, and personal address book. Examples of PDAs are: Palm, Blackberry, iPads, iPhones, and tablets iPad Blackberry Palm Pilot iPhone

4. Macintosh Quad PC Macbook Air Macbook Pro A Notebook is a laptop computer that runs with the Mac OS ®, currently “Yosemite” Desktop PCs running the Mac OS are only manufactured by Apple Computer. Differentiating Types

5. A PC is a personal computer that runs with the Windows ® operating system. PCs may be either desktop “towers” or laptop models PCs are designed for business and personal use. Laptop PC Desktop PC

6. Differentiating Types A Server is a large computer designed to network multiple personal computers. Servers allow for the exchange of data among all members of the network. Servers store data common to all users. Tower Blade Server

7. Basic PC Components PCs are made up of hardware and software components The various components of a PC are interconnected with very specific cables Computers are networked with cables and switches.

8. Hardware Hard Drive The PC tower houses the mother board, hard drive and power supply. Motherboard containing the Central Processing Unit (CPU) and Memory boards Power Supply

9. Input/Output Devices Input/Output devices are used to enter and retrieve data to and from the computer. I/O devices are the keyboard, mouse and monitor.

10. Data Storage Data is any text, graphic, or photo to be stored or accessed on the computer. Data storage devices may be built in, external, or portable. Data storage devices include hard drives, disc drives, USB flash drives and SD memory card readers

11. Data Storage Devices Compact Disc (CD) USB Flash Drive USB Mini Flash Drive SanDisk (SD) Memory Card Micro SD Memory Card and adapter

12. Cables and Connections In addition to the power cord, the various components of a PC are interconnected by specific type cables. A basic PC that is not networked or accessing the internet will have 3 cables – one for the monitor, and one each for the mouse and keyboard.

13. The Big Picture Power cords USB Cables VGA or DVI Cable

14. Wireless Interfaces Wireless devices, such as a mouse, keyboard, presentation tool, etc. connect to the PC via a “dongle.” A dongle is any wireless USB transmitter/receiver designed to communicate with a specific device.

15. Cables and Connections The keyboard connects to the PC via a USB cable or dongle

16. Cables and Connections The mouse will connect to the PC via a USB cable or wirelessly via a dongle.

17. Cables and Connections The monitor is connected to the PC via either a 15-pin male-to-male VGA cable or 19-pin DVI cable VGA Cable DVI Cable

18. Cables and Connections Connecting to a network or the internet is done via a Cat 5 cable with an RJ45 connector. The internet cable is connected between the PC and a server, often through a switch.

19. Terminology VGA = Video Graphic Adapter DVI = Digital Video Interface USB = Universal Serial Bus Dongle = Any USB transmitter/receiver interface (for connecting to a mouse, keyboard, etc.) Cat 5 = Category 5, referring to the number of twists in a given length of cable. RJ45 = a cable termination plug for a 4-pair cable.

20. Cat-5 Cables The Cat-5 cable used in this lab is made up of FOUR pairs of 24 gauge copper wire. The individual wires are covered in color-coded plastic casings The entire bundle is encased in blue or gray plastic Casings shield the wires so they do not touch each other and short out

21. Cat-5 Cables Wire color codes use a solid color alternating with a solid and white of the same color to make each pair. Color pairs in the Cat-5 wire are Orange, Blue, Green, and Brown.

22. Basic Hardware Troubleshooting Check that the power cables are all plugged into devices and to the wall. Check that the monitor is connected to the PC with a VGA cable. Check that the keyboard and mouse are connected correctly Check that the network cable is connected between the PC and the switch, AND check that the switch is powered up.