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• Non Volatile Solid State Memory
• Small, Convenient and Reliable up to >10K writes
• Random Access
• Relatively expensive in terms of cost/Mb
• Prices dropping every day, capacity increasing!
• Bridges the Gap between CD-ROM and Dynamic Memory SanDisk Flash Card One Gigabyte on a chip...and growing! The future disk technology
Looks like a hard drive storage unit — but there are no
moving parts inside. MILLIONAIRE
QUIZ SHOW Output Peripherals
• video display monitors
• monochrome and color
• CRT and LCD
• character, line, and page
• sound and voice output
• MIDI synthesizers Input Peripherals
• digital cameras and imagers
• sound digitizers
• Video digitizers
• Sensors (temp, pressure, humidity, vibration, speed, chemical, etc, etc,) Connecting all this stuff
• Parallel Bus
• Contains many signal paths for very fast data
• Bulkier, expensive cable and connectors
• Limited distance capability
• Serial Bus
• Limited paths
• Lower cost, lower size, lower weight
• Longer distance (generally)
• Wi-Fi and Bluetooth Äarallel / Serial Bus
Ä Flat Parallel
Cable Serial Computer
Cable Where are parallel busses used?
• All of the paths inside the CPU and between the CPU, main memory and video processor
are implemented using parallel busses for the
very fastest transfer rates.
• Any plug in cards use parallel busses as well as internal magnetic and optical disk drives.
• Most of these busses are either 16, 32 or 64 bits wide Where are serial busses used?
• Serial busses are primarily used to connect external devices and peripherals. The data transfer rates of
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This document was uploaded on 03/11/2014 for the course CSCI 0020 at Brown.
- Fall '08
- Operating Systems