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- 1. Glenn Hyman Gary Werner
- Type the following URL into your web browser to take the 10 question preassessment.
- Stands forUniversal Serial Bus
- It is an industry standard to connect computers with many peripherals
- Created in 1996
- Multiple versions: 1.0 and 1.1 (referred to as 1.x), 2.0 (a.k.a. USB Hi-Speed), and most recently 3.0
- Up to 127 different devices can function off of one USB host
5. USB Version Maximum Data Transfer Rate 1.X12 Mbps 2.0 480 Mbps 3.0 4.8 Gbps 6.
- Firewire is similar to USB
- A.K.A. IEEE 1394
- Typically used to connect digital video cameras to computers
- Original FireWire provided 400 Mbps data transfer rate
- Newer FireWire provides 800 Mbps data transfer rate
- Not as widely used, or as common, as USB
Photo credit:http://gbennett.whsites.net/zencart/images/products/firewire400.jpg 7.
- Question: Which is faster Hi-Speed USB 2.0 or FireWire?
- Answer: In sustained throughput FireWire is faster than USB 2.0.
- Question: If Hi-Speed USB 2.0 is a 480 Mbps interface and FireWire is a 400 Mbps interface, how can FireWire be faster?
- Answer: Differences in the architecture of the two interfaces have a huge impact on the sustained throughput.
- FireWire vs. USB 2.0 Hard Drive Performance Comparison
- Read and write tests to the same IDE hard drive connected using FireWire and then Hi-Speed USB 2.0 show:
- Read Test:
- 5000 files (300 MB total) FireWire was 33% faster than USB 2.0
- 160 files (650MB total) FireWire was 70% faster than USB 2.0
- Write Test:
- 5000 files (300 MB total) FireWire was 16% faster than USB 2.0
- 160 files (650MB total) FireWire was 48% faster than USB 2.0
- First developed by IBM to connect printers to computers
- Still found on a majority of motherboards today
- Being phased out in favor of USB connections
- Data transfer rate of 50-100 Kbps
- Called parallel wire because data is transmitted parallel to
- each other through the
Photo credit:http://www.lps2u.com/shop/images/HighPerformanceParallelCableForPrinter.jpg 10.
- Considered one of the most basic wires/connections that you can use
- Been around over 20 years
- Is also being phased out in favor of USB
- Mainly used to connect to
- external modems, PDAs
- and printers
- Have a maximum data
- data transfer rate of
- 115 Kbps
Photo credit: http://www.shopit.ie/images/MXT100FF_Alarge.jpg 11. Wire Name Maximum Data Transfer Rate USB 2.0480 Mbps FireWire 400 Mbps Serial 115 Kbps Parallel 100 Kbps 12. 13.
- Ethernet is not synonymous with Internet
- Ethernet wires are used in networking applications
- Has been in use since the 1980s
- Initially supported a 10 Mbps data transfer speed
- Fast Ethernet increased the rate to 100 Mbps
- Gigabit Ethernet currently peaks at 1000 Mbps
Photo credit:http://kbserver.netgear.com/images/1561_straight_ethernet.jpg 14.
- Phone lines are very versatile
- Most popular applications include:
- Sending faxes from computers
- Making phone calls from computers
- Connecting to the Internet via dial-up connection
- As broadband connections become more affordable dial-up will continue to be phased out
- Dial-up connection peaks at a speed of 56 Kbps
- 234,372,000 Internet users as of Nov 2009
- 73,123,400 Internet broadband connections as of June2009 (sourcehttp://www.internetworldstats.com/america.htm )
- Leaving 160 million plus potentially still using dial-up
Photo credit:http://img.alibaba.com/photo/50638622/Telephone_Line_Cords_with_UK_Telephone_Plugs.jpg 15. 16.
- No, not everything needs
- a power cord!!
- All computers, including laptops,
- need their own power cord
- Many peripherals need a separate power cord, however some may run off of USB supplied power
- Power cords are fairly uniform but proprietary power cords and power packs, especially for laptops, do exist
Photo credit:http://climate.sdstate.edu/howto/vrg101/black%20power%20cord.jpg 17.
- There are two main types
- Molex was developed in the 1950s, first used in computers in the late 1970s
- It is a 4 pin connector
- Standard on all PATA drives, and most motherboards
- SATA was developed in 2003 and is taking the place of Molex
- SATA is more of a versatile power adapter, allowing for hot-swapping and it can only be inserted in one specific way
Photo credit:http://en.wikipedia.org/wiki/Molex_connector 18. 19. Photo credit:http://www.addictivetips.com/wp-content/uploads/2008/09/imageview.jpg http://www.microsoft.com/library/media/1033/windowsxp/images/using/mce/expert/sound_sound_card.jpg 20.
- Computer audio wires are essential for providing sound
- Typically wires with green plugs are for speakers, wires with pink plugs are for microphones, and wires with blue plugs are for line-in
- There are also wires that support 5.1, 6.1, and 7.1 surround sound
- Newer audio wires include digital optical and coaxial cables, as well as HDMI which can transmit high definition video as well as
21. 22. Photo credit:http://en.dogeno.us/wp-content/uploads/vga2.jpg
- Stands for Video Graphics Array or
- Super Video Graphics Array
- Transmits an analog video signal
- VGA maximum resolution is 800 x 600
- VGA is considered the lowest common denominator that all PC graphics hardware support
- SVGA improves on VGA, and covers alargerange of display standards
- SVGA maximum resolution is 1027 x 768
- Still widely used for a large number of monitors, including flat screen monitors
- Has been surpassed by DVI connections
- S-Video stands for Separate Video
- The wire transmits video dataonly , no sound
- S-Video can transmit a slightly higher analog resolution picture than traditional composite video
- Allows for a computer to be hooked up to a monitor/TV peripheral
- Can not transmit high definition video signals
- Has been replaced with DVI and HDMI
Photo credit:http://www.zpluscable.com/images/products/prem-svideo-end.jpg 24.
- Stands for Digital Visual Interface
- Transmits a digital video signal
- First produced in 1999
- Direct replacement of VGA/SVGA connections
- Supports a maximum resolution of 3840 2400
- Already starting to be replaced by such connections as HDMI and DisplayPort
Photo credit:http://www.cablek.com/client_file/upload/image/dvi-cable-pic.jpg 25. 26.
- Originally designed in 1986
- Superseded by SATA in 2003
- Is an internal connection standard for hard drives, floppy drives, and optical drives
- Maximum data transfer rate is 133 Mbps
- Looks like a ribbon cable
- Was commonly called ATA or IDE cables until approximately 2003 when SATA was released and it was retroactively called PATA to
- differentiate between the two cables
Photo credit:http://en.wikipedia.org/wiki/File:Ata_20070127_002.jpg 27.
- SATA (Serial Advanced Technology Attachment) was created in 2003
- Reduces amount of cables from 80 in PATA to just seven
- Is used for:
- Internal computer parts connection
- External computer peripherals connection (eSATA)
- Power supply connection
- SATA has a maximum data transfer rate of 1.5 Gbps, SATA II is 3 Gbps, SATA III is 6 Gbps
- Another plus is that SATA connections are
Photo credit:http://www.sierra-cables.com/Cables/Images/SATA-Signal-Cable-1.jpg 28. Photo credit:http://gallery.techarena.in/data/513/sata-ide_lg.jpg 29.