Introduction to Computer Hardware Dr. Steve Broskoske Misericordia University
Feb 26, 2016
Introduction toComputer Hardware
Dr. Steve BroskoskeMisericordia University
3 Parts of a PC (As Seen from Outside PC)
Power Supply
Storage Devices
Motherboard(Microprocessor,
cards, RAM memory)
3 Parts of a PC(As Seen from Inside PC)
Motherboard(Microprocessor,
cards, RAM memory)
Power Supply
Storage Devices
Power Supply
Fan on back ofpower supply.
Power plug
Part 1
Notice the powerwires coming fromthe power supply.
Storage Devices
• Hard drive• Floppy drive• Optical drives
– CD-ROM– DVD-ROM
Connected to motherboard by data and power cables.
Part 2
“Ribbon” cables carry
data.
Storage Devices
Inside look at a hard drive.
MotherboardPart 3
What Is on the Motherboard?
• Motherboard holds:–Microprocessor (Pentium, Core 2 Duo).–Memory (RAM).–Cards (audio, video, modem, Ethernet,
wireless).
Items on the Motherboard Microprocessor
Old 486Size of half-dollar
Modern Pentium IVSize of your hand!
Items on the Motherboard Microprocessor
• “Brain” or “engine” of the PC.• Microprocessors:
– Intel Pentium– Intel Core 2 Duo– AMD Athlon
• Cooling fins (radiators). Some have fans.
Items on the Motherboard Microprocessors Run Hot!
Heat sink sits ontop of a microprocessor
to radiate heat out.
Pentium mayhave its own fan
to help keep it cool.
Items on the Motherboard Memory (RAM)
Memory module.
Memory as it lookson the motherboard.
Memory vs. StorageMemory (RAM) is thinking space.
vs.
Data storage.
Items on the Motherboard Memory (RAM)
• 2 or 3 slots on motherboard to hold memory.
• Memory is cheap to buy.• If you have to enter your PC, you are likely
to upgrade memory.
Fact: Most PC’s are sold with insufficient memory.
Benefits ofIncreased Memory (RAM)
1. Increases PC processing speed.2. Allows PC to open more programs and
larger files simultaneously.3. Make games with heavy graphics run
smoother and faster.
Items on the Motherboard Adding Memory to a PC Is Easy!1. Determine what your PC needs:
– How much memory you can add.– What type of memory your PC is designed to
hold.2. Open the PC tower case.3. Add the memory into the slots provided.
Crucial.com
Items on the MotherboardCards
• Video card• Sound card• Modem card• Ethernet
(networking) card• Wireless card
Cards allow the PC to communicate with the outside world.
Items on the Motherboard Cards
Cards inside PC
Back of cards formback of PC.
Purchasing Cables and Accessories
• Cables tend to be very expensive. You can purchase cables and other accessories from this popular online store.
MonoPrice.com
Review
• 3 parts of a computer– Power supply.– Storage devices.– Motherboard.
• Microprocessor.• Memory (RAM).• Cards (audio, video,
modem, Ethernet, wireless).
• 2 types of cables– Power– Data