Introduction to Computer Hardware Systems
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The document provides an introduction to computer hardware components such as the CPU, motherboard, RAM, storage devices, input and output devices, and power supply. It explains fundamental concepts of binary, bits, and bytes, detailing the differences in size metrics (kilo, mega, and giga) in binary. Additionally, it highlights important specifications to consider for each hardware component.
Introduction to Computer Hardware Systems
- 1. Introduction to Computer Hardware Computer Hardware components CPU Motherboard RAM (Memory) Storage (Hard drive) Video/Graphics card CD/DVD burner (Optical drive) Case Power supply Monitor Keyboard Mouse Operating system C. P. Divate
- 2. 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?
- 3. Bits & Bytes kilo, mega, and giga are different in binary! bit (b) – a binary digit KiloBit (Kb) – 210 bits MegaBit (Mb) – 220 bits GigaBit (Gb) – 230 bits Byte (B) – 8 binary digits KiloByte (KB) – 210 bytes MegaByte (MB) – 220 bytes GigaByte (GB) – 230 bytes
- 4. Storage Scam! Example: iPhone 6 128GB
- 5. Input Devices Keyboard Mouse Webcam Light pen Track Ball Scanner Graphic Tablet Microphone Magnetic Ink Card Reader(MICR) Optical Character Reader(OCR) Bar Code Reader Optical Mark Reader(OMR)
- 6. Output Devices Monitor Printer Speakers any others?
- 7. Power Supply Often comes included with the case Connects computer to electricity
- 8. 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)
- 9. Random Access Memory (RAM) Computer’s memory part of the brain Pay attention to: Brand (e.g. Crucial, Kingston) Size (e.g. 2GB) Speed (e.g. DDR3 1333 MHz)
- 10. Graphics (Video) Card Specializes in displaying graphics Pay attention to: Brand (NVIDIA, ATI) Size (512 GB) Speed
- 11. Hard Drive Stores everything Pay attention to: Brands (Western Digital, Seagate) Speed (e.g. 7200 RPMs) Size (e.g. 512 GB)
- 12. CD/DVD Pay attention to what it can burn…