IT

1. www.techsailor.com
Engaging Your Customers Online
by Fisher Yu
Basic IT Knowledge
5 Feb 2010
Basic IT Knowledge

2. • essentially a multi-functional
calculator
• a programmable machine that
receives input
• stores and manipulates data
• provides output in a useful format
• history:
– the first electronic computers were
developed in the mid-20th century (1940–
1945). These were the size of a large room
– http://inventors.about.com/library/blcoinde
x.htm
A Computer…

3. Software:
•MS office
•IE7
•Firefox
•SQL
•IIS
•Photoshop
•etc…
OS:
•Windows XP
•Windows Vista
•Windows 7
•Mac OS
•Linux
•Unix
•Chrome OS
•etc…
Physical Devices:
Mother board, Hard disk, Ram, Processor, Speaker, Keyboard, Mouse, Monitor, CD-ROM,
Power Supplier Unit & etc…
Do you know…

4. External Devices Internal Devices
Hardware

5. PC Peripherals
 Monitor
 Speaker
 Keyboard
 Mouse
 Joystick
 Printer
 Photocopier
 Scanner
 …
Network Device
 Router
 Switch
 Hub
 Modem
 Wireless adapter
 Blue-tooth
adapter
 …
Storage Device
 External HDD (Hard
Disk)
 Thumb drive ; flash
disk; SD/Mini-SD card,
Memory Stick, etc…
 External Floppy Disk
 …
* A lot of different kind of slots/ports are available on motherboard to connect those external devices
External Devices

6. Devices that bulit-on or directly plug onto motherboard, and include motherboard
 Motherboard
(also called Main board/System board)
 Power supplier unit (usually with fans)
 Processor (usually with fans)
 Ram
 Hard Disk (HDD)
 Floppy Disk
* A lot of different kind of slots are available on motherboard for the rest of the optional devices
 Modem
 CD/DVD-Rom /RW
 Graphic Card
 Network Card
 Sound Card
 …
Internal Devices

7. Peek into the PC’s motherboard
Source: http://www.obsessable.com/glossary/motherboard/

8. • An interface between
hardware and user
• A platform to install/host
applications/software
Windows XP Mac
Windows Vista Windows CE
Mac OS X Suse Linux
Windows 2000 BlackBerry
Windows Server 2003 Windows
Ubuntu Linux FreeBSD
Windows NT 4 Sun Solaris
Linux Playstation 3
Windows 98 Symbian
Windows ME Adobe AIR
Debian Linux Nintendo Wii
iPhone iPod
Windows 95 SGI Irix
OpenBSD …
Operating Systems

9. • Computer software is a general term primarily used for digitally stored data such as
computer programs and other kinds of information read and written by computers.
• Today, this includes data that has not traditionally been associated with computers, such as
film, tapes and records.
• in contrast to hardware, software is intangible, meaning it "cannot be touched
• Software is also sometimes used in a more narrow sense, meaning application software only.
Examples:
 Application software, such as word processors which perform productive tasks for users.
 Firmware, which is software programmed resident to electrically programmable memory devices on board
mainboards or other types of integrated hardware carriers.
 Middleware, which controls and co-ordinates distributed systems.
 System software such as operating systems, which govern computing resources and provide convenience for users.
 Software testing is a domain dependent of development and programming. Software testing consists of various
methods to test and declare a software product fit before it can be launched for use by either an individual or a group.
 Testware, which is an umbrella term or container term for all utilities and application software that serve in
combination for testing a software package but not necessarily may optionally contribute to operational purposes. As
such, testware is not a standing configuration but merely a working environment for application software or subsets
thereof.
 Video games (except the hardware part)
 Websites
Software
Source: http://www.wikipedia.com

10. • System software helps run the computer hardware and
computer system. It includes a combination of the following:
 device drivers
 operating systems
 servers
 utilities
 windowing systems
System Software

11. • Programming software usually provides tools to assist a
programmer in writing computer programs, and software
using different programming languages in a more convenient
way. The tools include:
 compilers
 debuggers
 interpreters
 linkers
 text editors
Programming Software

12. • Application software allows end users to accomplish one or
more specific (not directly computer development related)
tasks. Typical applications include:
 industrial automation
 business software
 video games
 quantum chemistry and solid state physics software
 telecommunications (i.e., the Internet and everything that flows on it)
 databases
 educational software
 medical software
 military software
 molecular modeling software
 image editing
 spreadsheet
 simulation software
 Word processing
 Decision making software
Application Software

13. • A collection of related web pages, images, videos or other
digital assets.
• Addressed relative to a common Uniform Resource
Locator (URL).
• Webpage
– formatting instructions of Hypertext Markup
Language (HTML, XHTML)
– accessed and transported with the Hypertext Transfer
Protocol (HTTP / HTTPS)
Website

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