Monday, October 31, 2016

  • meta data - is the data bout the structure of your database
  • pc bas is access
  • Microsoft is oracale database
  • relational database
  • the entity-relationship
  • entities (objects)
  • students,classes etc.
  • Relationships
  • enrollment (student to classes)
  • types of relationships
  • 1 to 1
  • 1to many
  • many to many

Monday, October 24, 2016

what to know on the exam

  • components of the system
  • what does the ALU do
  • know the components of the machine cycle
  • components of the mother board
  • operating systems on tablets
  • unix operating system
  • most powerful processor
  • how to run multiple operating systems on apple
  • different memories
  • ddr 1 ddr2
  • what is a bios
  • what is a front side bus
  • computer speed
  • proccesors in smartphones
  • coding systems
  • how many bytes in a kilobyte
  • what is esata
  • what is a solid state drive
  • what is papa
  • sapa
  • wind share devices
  • speed of the processor
  • number of cores
  • optical care recognition
  • examples of biometric devices
  • what are some properties of a display
  • how do you define color depth
  • what is the different between inkject and laser
  • digital cameras - what to look for
  • consumer oriented video conferencing services 
  • video conferencing services should have voice and face tracking
  • what can you do with a multi function printer
  • what are the different file formats
  • what is network attach storage
  • what is meant by mapping a drive
  • what is a storage are network
  • what is the definition of a workbook
  • how do you toggle between values and formulas
  • how do you reference a cell  value
  • goal c
  • how can you define document properties
  • can cells be merged and centered
  • what is flashville
  • how to formati numbers in currency, accounting format
  • what is floating format
  • basic components
  • sender
  • receiver
  • cabel modem connects to a computer with an rj-45 link
  • there is also a thick coaxial cable
  • there is multiple channels in one link
  • you might be browsing or downloadingg but they are in 2 different sessions
  • computer
  • GET https://
  • secure connection - VPN
  • miracast secures wi di
  • wi fi security is
  • SSID - broadcast or don't broadcast
  • the collaboration tool is called sharepoint
  • office 365
  • office
  • onedrive
  • share point
  • office 365 as a collaboration platform
  • LAN is a local area network which a network of computers
  • you will connect a cable router to a wireless access point
  • SC connects with a switch to a router
  • P2P  LAN- all client
  • client server LAN is computers connected together connecting clients and servers
  • internet peer to peer networks
  • internet may also host a client server network
  • video conferencing 
  • web ex
  • adobe connect
  • go to meeting
  • zoom
  • Skype for business
  • consumer level conferencing
  • Skype 
  • zoom
  • facetime
  • oovoo
  • google hangout
  • facebook live
  • client server network
  • how to connect computers together
  • star network
  • ring network
  • bus network   
  • networking
  • TCP/IP is the lifeline of your network
  • Ethernet
  • token ring
  • Wi-Fi
  • Bluetooth
  • uwb
  • IrDA
  • RFID
  • Wi MAX
  • NFC
  • connctions to the internet
  • ISDN
  • DSL
  • Cable
  • FTTP
  • FTTH
  • T1
  • T3
  • ATM
  • OC3
  • you have your home connected to the internet with a cable and fios and fiber
  • organization this connects to the internet with OC# and ATM
  • these are high speed connections
  • ATM is the fastest connection to the internet
  • file transfer program
  • filezilla is an ftp client program
  • you will have the router and the access point
  • acces point is a
  • switch
  • firewall
  • wireless router
  • DHCP server
  • RJ 45 port connects with an RJ 45 cable
  • Ethernet is wired
  • you have different types the best is fiber optics cables
  • it sends more information and its faster
  • 2 types of transmittion
  • directional which is known as unidirectional
  • the other is omnidirectional
  • frequency spectrum
  • band width is the frequency range for communication
  • measured in mbps and gbps
  • 1gbps
  • Ethernet
  • twist pair network
  • broad band - high speed - multiple channels
  • broadband - single channel


Monday, October 17, 2016

  • device manager
  • update driver
  • disk management  it will show you the disk
  • system
  • system
  • system creates patricians to restore
  • 100gb - windows 10 - drive d  
  • 100gb - windows 2010r2 - drive c
  • data
  • ntfs
  • FAT32 - insecure, mostly on flash drives
  • after you format you get a new logical drive which is the F drive
  • viruses affect patricians where the programs are
  • you can re install your applications and still have the data
  • Internet Options - many times its done automatically
  • security ( 3 zones)
  • internet
  • local ( intranet) - organizations network  
  • trusted sites - you will have access to those sites
  • restricted sites - those sites can't communicate with you  

Monday, October 10, 2016

Operating Systems

  • software 
  • System - Makes computer work 
  • OS utilities 
  • Application  - Extras ( word, excel etc.)
  • Immediate application  - GET
  • Application development  - Microsoft access
  • Tools 
  • major database 
  • windows  ( Microsoft 365)
  • unix ( linux, AIX, Solaris, android) 
  • OS types 
  • windows 10, windows 8.1
  • windows 10 ( homes, education, professional, enterprise) 
  • physical computer 
  • virtual server 
  • unix 
  • open source version available 
  • linux 
  • android 
  • virtual machines 
  • virtual box 
  • virtual PC 
  • dual boot 
  • multiple positions to run multiple windows operating systems, for example
  • bootcamp
  • usage share of operating systems 
  • booting the operating system 
  • cold boot 
  • warm boot ( ctrl, alt, delete) 
  • interacting with the computer 
  • GUI 
  • command prompt 
  • to get to the command prompt search cmd  
  • get ssd
  • memory managment 
  • contact tasks 
  • buffering and pooling 
  • computer  to printer 
  • can have multiple printing jobs 
  • if you cant stop printing it is in the printers memory 
  • device configuration 
  • plug and play ( put something in it automatically works) 
  • Hot-plugging (there are computers if one supply goes wrong it can be taken away without turning off the computer) 
  • windows update 
  • automatic update of windows 
  • installing a service pack 
  • exploring current version 
  • network operating system  
  • particians 
  • windows  10 
  • data 
  • windows 2012 server 
  • server operating systems 
  • mainfram operating systems 
  • supercomputers 
  • administration security 
  • administrator 
  • user 
  • creating and managing users 
  • password 
  • changing passwords 
  • your username is everywhere with Microsoft cloud
  • you can give the user different privileges by going to properties
  • you should create a fall black account with administrator privileges
  • tablet operating systems 
  • android versions 
  • latest version is nuget 
  • windows 10 versions 
  • 32 bit 
  • 64 bit 
  • bellr
  • windows 10 pro 
  •   

Monday, October 3, 2016

  • network storages
  • network attached storage
  • home and enterprise networks
  • connect wing using different credentials
  • my cloud
  • when a computer is working very well make a restore point then make an image of patrician 1
  • restore computer must be working
  • re image computer need not boot
  • SAN - storage area network
  • fiber channel
  • storage capacities
  • k,m,g,t,p,e,z an y bytes
  • windows
  • FAT 32 NTFS
  • Apple
  • HFS+ -  hierarchical File system
  •  defragmentation
  • error checking
  • this will check for errors and fix the errors
  • hard disk - re drive head
  • basic disk operation
  • reading head
  • bites per second through put
  • disk management tools
  • disk partition
  • a hard disk can be partitioned for each partition to behave like a logical drive
  • different operating systems can be installed on different partitions
  • dual boot system
  • hdd and ssd
  • ssd
  • hybrid drives
  • sshd
  • contains both ssd and a hdd
  • raid storage
  • redundant array of inexpensive
  • NAS connects directly
  • external removable drives
  • usb drives and enclosures
  • usb 2.0 and 3.0 
  • desktops
  • PATA: older technology
  • USB3.0
  • speed
  • usb high capacity
  • usb 3.0 speed comparisons
  • copy 300 4mb pictures/songs
  • 12 gb 1080HD movie
  •  note on encryption
  • tapes
  • DVD
  • DVD+
  • cloud storage
  • one drive
  • google drive
  • I cloud
  • drop box
  • sugar synch
  • folder synchronization
  • enterprise storage
  • storage area network
  • fiber channel - network of storage devices
  • storage area network
  • fiber channel
  • tape drive
  • DVD
  • SSD
  • SAS HDD
  • Network of storage
  • http://www.wdc.com/en/
  • http://www.wdc.com/en/products/external/desktop/
  • http://www.wdc.com/en/products/internal/desktop/
  • http://www.wdc.com/en/products/products.aspx?id=1140
  • http://www.wdc.com/wdproducts/library/?id=439&type=20&cn=4879-705142
  • http://products.wdc.com/library/QIG/global/4879-705142.pdf