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Computer Anatomy. Chin-Sung Lin Eleanor Roosevelt High School. The Visible Part: Computer Hardware. What is a Computer?. Main Memory. Input. Microprocessor. Output. Storage. What is a Computer?. What is a Computer?. System Unit. Motherboard. Terminology.
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Computer Anatomy Chin-Sung Lin Eleanor Roosevelt High School
What is a Computer? Main Memory Input Microprocessor Output Storage
Terminology • Bit (b), Nibble, Byte (B), Word, LSB & MAB
Terminology • Prefix: kB, MB, GB & TB Example: Number of bytes (B) 1 kB = 1,000 B = 103 B 1 MB = 1,000,000 B = 106 B 1 GB = 1,000,000,000 B = 109 B 1 TB = 1,000,000,000,000 B = 1012B
Terminology • Serial vs. Parallel Communication
Terminology • Frequency (Hz, kHz, MHz & GHz) Number of clocks per second (Hertz, Hz) 1 kHz = 1,000 Hz = 103 Hz 1 MHz = 1,000,000 Hz = 106 Hz 1 GHz = 1,000,000,000 Hz = 109 Hz
Terminology • Bandwidth (BW) Amount of data being transmitted per second (e.g., MB/s, Gb/s) USB 3.0 reaches 5 Gb/s (gigabits per second) PIC Express 4.0 can reach 15.754 Gb/s IEEE 802.11 ad reaches 6.75 Gb/s
PS/2 Keyboard and Mouse Connectors PS/2 Mouse PS/2 Keyboard
Serial and Parallel Ports 25-pin Parallel Port 9-pin Serial Port
USB and Ethernet Connectors Ethernet USB
Audio Connectors Line In Audio Out Microphone In
What is a Computer? Main Memory Input Microprocessor Output Storage
Central Processing Unit (CPU) • Select • A • B • Y • 0 • 0 • 0 • 0 • 0 • 0 • 1 • 1 • 0 • 1 • 0 • 0 • 0 • 1 • 1 • 1 • 1 • 0 • 0 • 0 • 1 • 0 • 1 • 0 • 1 • 1 • 0 • 1 • 1 • 1 • 1 • 1
Central Processing Unit (CPU) • Select • A • B • Y • 0 • 0 • 0 • 0 • 0 • 0 • 1 • 1 • 0 • 1 • 0 • 0 • 0 • 1 • 1 • 1 • 1 • 0 • 0 • 0 • 1 • 0 • 1 • 0 • 1 • 1 • 0 • 1 • 1 • 1 • 1 • 1
Cache Memory Level 2 Cache Memory
Memory 72-pin SIMM (Single Inline Memory Module) 168-pin DIMM (Dual Inline Memory Module)