Chapter 4 through 7 Review Topics
1) Chapter 4 – Input and Output
a) Two most common input devices – keyboard & mouse
b) Keyboards
i) Qwerty vs Dvorak
ii) Ergonomic keyboard
iii) Mobile device keyboards
c) Keyboard layout
i) Alphanumeric/cursor movement/numeric pad/function key/modifier keys
ii) Esc/Window/Scroll/delete/backspace/insert
d) Mice
i) Mechanical mouse – rolling ball
ii) Optical mouse
iii) Trackball/joystick/game pad
e) Other input devices
i) Microphone
ii) Digital camera/page scanner/barcode scanner – resolution/storage
iii) Graphics tablets – stylus or pen
(1) New ink pen on paper captured digitally – see LiveScribe or Wacom Inkling
iv) Touch screens
v) RFID tracking
vi) Biometric reader
f) Common output devices
i) Monitor – pixel/RGB/dot pitch
(1) CRT
(2) Flat-panel
ii) Printer – monochrome/color:KCYM
(1) Ink-jet
(2) Laser-ject
(3) Impact printers
(4) Thermal printers
(5) Dye-sublimation printers
iii) Projectors
iv) Plotters – large format documents such as architectural drawings
2) Chapter 5 – System Software – helps manage hardware and software on system
a) OS
i) Devices that need OSs – all
ii) Functionality of OS
(1) User interface
(a) Command line
(b) GUI
(i) Desktop
(ii) Ribbon
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(2) File management
(3) Services
(4) Kernel
(5) Device drivers
(6) Boot
(7) Virtual memory – where/speed
iii) Common products
(1) Windows
(a) DOS/Windows 1.0, 2.0, 3.0,3.1
(b) Windows 95/98/98 SE/ME – called the Windows 9x series
(c) Windows XP/Vista/7/8
(d) Windows NT/Windows 2000/Windows 2003 Server/Windows 2008 R2 Server
(e) Mobile/Embedded/Auto/Compact
(2) Mac
(a) OS X – Tiger/Leopard/Snow Leopard/Lion/Mountain Lion
(3) Linux
(a) LAMP
(i) Linux
(ii) Apache Web server – most used web page server
(iii) MySQL – full featured open source relational DB
(iv) PHP
(b) Most common distributions - Red Hat/Fedora/SUSE/Ubuntu/Debian
(4) UNIX – late 1960s
(5) IBM mainframe – System 390 z/OS
(6) Netware – first file servers
b) Utilities
i) File management
(1) Scan/defrag/compression/encryption
ii) Security –
(1) Anti-virus/spam/spyware/intrusion detection
(2) Firewall
3) Ch 6 - Application Software – what is useful for user/specific tasks
a) Acquiring software
i) Software license
(1) Commercial – shrinkwrap/site licenses
(2) Shareware – try before you buy; honor system
(3) Freeware – use “as is”
(4) Public Domain – abandoned; modified, distributed
(5) Open Source – source + executable
ii) DVD/Online/Bloatware
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b) Local vs remote software and data
i) Cloud computing
ii) SaaS, PaaS, IaaS
iii) ASPs (Application Service Providers) are the main purveyors of SaaS
c) Software suites
i) Bundled components
ii) Common interface/interaction
iii) Lower price
iv) MS Office, graphic packages, ERPs, some games
d) Productivity
i) Word processing – character/paragraph/section/page/document
(1) Word-wrap
(2) Enter key  paragraph
(3) Tables
(4) Point sizes – 72 points in an inch
ii) Spreadsheets – column/row/cell/worksheet/chart sheet/workbook
(1) Absolute vs relative addressing - $ used to indicate absolute
(2) Fill down/across
(3) Ranges – C14:F14, B5:B10, A5:E10
iii) Databases – field(attribute)/row(record)/table/database
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(1) Forms and reports
(2) Queries – questions posed to the DB
(3) Most common today - relational
iv) Presentation software – frame/slide/slideshow
(1) Slide transitions
(2) Custom animations
e) Communication
i) IM – synchronous
ii) Email – asynchronous
iii) Text messaging
iv) Twitter – Internet text messaging
f) Searching
g) Social networking software
h) Graphics packages
i) Paint programs – bmp type files, raster graphics, bitmaps
ii) Draw programs – vector graphics, resizable, line drawings,
iii) Photo-manipulation programs – photo correction, editing, layers
iv) CAD – architectural, mechanical, landscaping, tied to numerical control programs
4) Ch 7 - Networking
a) Nodes
b) Types – computer/internet/telephone/TV & Radio/Monitoring/GPS
i) Dual-mode phones
(1) 3G or 4G/WiFi
(2) CDMA / GSM / LTE /
(3) Cellular / Satellite
c) Applications – Videoconferencing/Collaborative/Telecommuting/Telemedicine/Multimedia
d) Topologies – Star/Ring/Bus/Mesh
e) Architecture – Client/Server & P2P
f) Network Size and Coverage
i) PAN
ii) TAN
iii) LAN
iv) CAN
v) MAN
vi) WAN
g) Wired connections
i) Twisted pair – phone lines
ii) Coax – cable TV
iii) Fiber optic – Uses one or more lasers to pulse light down fiber
h) Wireless
i) Cellular radio
ii) NFC – near field communications
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iii) BlueTooth
iv) WiFi
v) WiMax
vi) Microwave – towers(stations)/satellite
vii) Infrared
i) Devices
i) Hub
ii) Switch
iii) Router
iv) Gateway
v) Bridge
vi) Multiplexor/Concentrator
vii) Repeaters/Range Extenders
viii) WAP – wireless access point; think Starbucks
j) Common usage
i) Internet – public network
ii) Intranet – behind firewall making it private
iii) Extranet – allows tunneling through firewall
(1) VPN
(2) Telecommuters/Salespeople/Executives/Suppliers/Customers
k) Serial vs parallel transmission
5) Spreadsheets
a) Cell – intersection of row and column
b) Tabs – third dimension
c) Types of data
i) Text/pictures
ii) Numeric
iii) Formulas and functions
(1) Built-in functions – PMT, Sum, Average, Max, Min, many more
(2) Cell references
(a) Relative addressing – adjusts row or column for fill down or fill across respectively
(b) Absolute addressing – use of $ to hold row or column constant in fill opertions
(3) Ranges – A1:B8
iv) Dates – 1/1/1900 = day 1
d) Auto-recalculation based on cell dependencies
e) Charts – pie, column, line, scatter
f) Formatting
i) Data type
ii) Font characteristics
iii) Fill
iv) Borders/Shading
v) Conditional formatting
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g) Renaming tabs
h) Worksheets, chart sheets
i) Workbooks
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