cs101 network basics. computers love bytes and a factor of ____ up to now we have been using bytes...
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![Page 1: CS101 Network Basics. Computers love bytes and a factor of ____ Up to now we have been using bytes as our main unit of measurement with a factor of ____](https://reader036.vdocument.in/reader036/viewer/2022083009/5697bfdc1a28abf838cb0d66/html5/thumbnails/1.jpg)
CS101
Network Basics
![Page 2: CS101 Network Basics. Computers love bytes and a factor of ____ Up to now we have been using bytes as our main unit of measurement with a factor of ____](https://reader036.vdocument.in/reader036/viewer/2022083009/5697bfdc1a28abf838cb0d66/html5/thumbnails/2.jpg)
Computers love bytes and a factor of ____
Up to now we have been using bytes as our main unit of measurement with a factor of ____
For instance storage measured in bytes
– 1 bit = 0 or 1
– 1 bit * 8 = 8 bits = one byte
– 1 byte * 1024 = 1024 bytes = 1 Kilobyte
– 1 byte * 1024 * 1024 = 1,048,576 bytes = 1 Megabyte
– 1 byte * 1024 * 1024 * 1024 = 1,073,741,824 bytes = 1 Gigabyte
– 1 byte * 1024 * 1024 * 1024 * 1024 = 1,099,511,627,776 bytes = 1 Terabyte
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Networks Love Bits and a Factor of 1000
Movement measured in:
____ ___ _____ (bps)– bps = How many bits go by a point in one second
– Also called Data Transmission Rate
• 1 bps = 1 ___ per second
• 1bps*1000 = 1000bps = 1 ___ bit per second = 1 kbps
• 1bps*1000*1000 = 1,000,000bps = 1 ___ bit per second = 1 Mbps
• 1bps*1000 *1000*1000 = 1,000,000,000bps = 1 ___ bit per second = 1 Gbps
• etc
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What is a ______?
• ________ = Devices connected together so that they can exchange information
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A network needs 3 things• ________ ________
– Instructions to move information between devices
• Standalone software or built into most operating systems
• ___________– Agree upon way to do things
• TCP/IP = Transmission Control Protocol/Internet Protocol
• __________– Way to move information between devices
• Wired or Wireless
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Home Network Software
• Built into the operating system since everyone wants to network related things with their computer– Windows = Control Panels > Network and
Internet
– Macintosh = Apple menu > System Preferences > Network
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Home Network Protocols• Handled by the networking software
• Since everyone wants their computer to be able to communicate with everyone else's computer we all want to use the same protocols
• ___/__ = ________ _______ ________/ ________ _______– About 100 protocols
• Example = http = Hyper Text Transfer Protocol to move web pages around in an agreed upon way
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To have a connection you need a NIC
• NIC = ________ _________ _____
• A ___ allows a device like a computer, printer, scanner, etc, to connect to a network
• A ____ has a ___ address– Media Access Control address– Unique address for each item on a network
• Can be found in System Information under Network Adapter
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Home network connection options
• Wired– ________ cables
• Fast ______ 10Mbps/100Mbps• Gigabit ______ 10Mbps/100Mbps/1000Mbps
– _______ _____ Networking (electrical system)
– ______ _____ Networking (phone system)
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Home network connection options
• Wireless– ______ either _, _, _, _, _
• A wireless router radios the information to devices on the network.
• Each device on the wireless network needs a wireless NIC card to receive and send signals.
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If you go wireless…• _________ usually is off by default
• Password Protect _______– Change default password of router
• Turn on wireless ________ and create very long password
• WEP = Not quite as bad as nothing
• WPA = Better
• WPA2 = Best
• Think about ___ address filtering and other options.– Ready wireless router manual