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Lecture

lecture 4

6 Pages
122 Views

Department
Information Technology Management
Course Code
ITM 100
Professor
Ron Babin

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50 m/c questions, learning edge notebook, 2 short questions (10 marks each),
based on discussions, cases, textbook
Val chain(2), Ryerson (5)
Triangle
Chapter2
Infrastructure hardware, software (salesforce), communications (radio receivers)
What happens when you hit enter
Identify/describe comp send self mail
oAs type on keyboard A bits are converted to a bite
o1000010
oWireless reciers a radio transmitter
oCateogory 6 cable (blue) take signals through copper cabling
oNortel
oTransmittd from switch to fibre optics
oTransmits in light signals
oCopper wire go bout 300 yards
oLightbeam bounces back and forth
oLight is more predicatble and
oNetwork switch through email server
oBeams it down to comp
o1. Reciers receive Binary digital (BITs)
o2. Routers dectermine path according to address
o3. Cabling transmits signal
oTcip figure out where msg gooes
oClient server (command ask comp to do is server)
www.notesolution.com
oCategory 6 (2 piec of coper stadle in 4 strands = 8)(coppercableis shielde by
plastic so signal doesnt dispate) long
ocatetory 5 (short, local area network)
o(fiblleoptic for long dist comm.), reallylong (from india to here)
oMedium between comp and signal
oClients = laptop
oServer = give frunction
oTcip
oComm. medim = radio copper fibre
Components of IT
oDo everything fast
oHardware by itself useless
Not val after 6-7 years
Memory and storage are similar
Storge = harddrive, avail even if no internet
Input = keyboard, Vpad,
Output = screen,printed assignment
Comm. = transfer of info = medium = cable
oSoftware network that connects blackboard
Val of comp increase exponentially by number of connections
oTypes of comp
Super comp = largest, fastest,
Mainframes = used by large companies airlines, banks
Server farms = Ryerson, diff type of server in racks
www.notesolution.com

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Description
50 mc questions, learning edge notebook, 2 short questions (10 marks each), based on discussions, cases, textbook Val chain(2), Ryerson (5) Triangle Chapter2 Infrastructure hardware, software (salesforce), communications (radio receivers) What happens when you hit enter Identifydescribe comp send self mail o As type on keyboard A bits are converted to a bite o 1000010 o Wireless reciers a radio transmitter o Cateogory 6 cable (blue) take signals through copper cabling o Nortel o Transmittd from switch to fibre optics o Transmits in light signals o Copper wire go bout 300 yards o Lightbeam bounces back and forth o Light is more predicatble and o Network switch through email server o Beams it down to comp o 1. Reciers receive Binary digital (BITs) o 2. Routers dectermine path according to address o 3. Cabling transmits signal o Tcip figure out where msg gooes o Client server (command ask comp to do is server) www.notesolution.com
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