Introduction to Hardware. What is binary? We use the decimal (base 10) number system Binary is the base 2 number system Ten different numbers are used.

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Presentation transcript:

Introduction to Hardware

What is binary? We use the decimal (base 10) number system Binary is the base 2 number system Ten different numbers are used in base 10. How many are used in base 2?

Bits & Bytes kilo, mega, and giga are different in binary! bit (b) – a binary digit KiloBit (Kb) – 2 10 bits MegaBit (Mb) – 2 20 bits GigaBit (Gb) – 2 30 bits Byte (B) – 8 binary digits KiloByte (KB) – 2 10 bytes MegaByte (MB) – 2 20 bytes GigaByte (GB) – 2 30 bytes

Storage Scam! Example: iPad 16GB How much space are you *actually* getting?

Input Devices Keyboard Mouse Webcam …any others?

Output Devices Monitor Printer Speakers any others?

Motherboard Connects EVERYTHING! AGP  PCI-Express Update AGP  PCI-Express Update

Central Processing Unit (CPU) Computer’s thinking/calculating brain part Pay attention to: Model (e.g. Intel Core i5) Clock speed (e.g. 2 GHz) Socket type (e.g. LGA 1156)  changes from year to year

Random Access Memory (RAM) Computer’s memory part of the brain Pay attention to: Brand (e.g. Crucial, Corsair, Kingston) Size (e.g. 2GB) Speed (e.g. DDR MHz)

Graphics (Video) Card Specializes in displaying graphics Pay attention to: Brand (NVIDIA, ATI) Size (512 GB) Speed

Hard Drive Stores everything Pay attention to: Brands (Western Digital, Seagate) Speed (e.g RPMs) Size (e.g. 512 GB, 1TB) Optional: Solid State Drives

CD/DVD Pay attention to what it can burn…

Power Supply Sometimes included with the case Connects computer to electricity Power Supply Calculator

Build Your Own PC Websites that let you buy parts: FAQs