1st Six Weeks Flashcards
Employee monitoring
using technology to monitor the work of employees using a computer system.
Why do companies filter their internet connections?
to block common sources of distractions.
Three examples of distractions:
Social networks, games, pornography
What can companies be held legally responsible for?
for material sent using their computer system.
Internet monitoring software
makes it very easy for network administrators to monitor the websites accessed by users along with the downloaded files.
Why is monitoring most network traffic possible?
because it passes through a company server (LAN) before traveling to the Internet.
Desktop Monitoring Software
- has remote viewing and remote desktop features which allows for interaction with another computer
- reports any aspect of a computer’s use: disk space use, instant message chat logs, key strokes (Key Logging).
- Software key loggers run in the background, silently recording key presses.
Acceptable Use Policy
Employer’s expectations are made clear and clarify to what extent to which monitoring will occur.
Teleworking
- Also called telecommuting is work away from the office – either working from home or while traveling.
- Small percentage of employees do this because of opposition from employers
- Teleworkers use collaborative software to increase their productivity and maintain communication with other workers.
Examples of collaborative software in teleworking:
Group calendars, video conferencing, instant messaging, cloud based software
Hardware
The tangible, physical parts of the computer which work together to input, process, store
and output data.
Hardware affects?
the performance and the way in which IT systems are used.
Supercomputers
the largest, fastest, and most powerful computers available
Most supecomputers have…
thousands of gigabytes of primary storage and many terabytes of
secondary storage space.
Mainframes
also very powerful computers which share many of the same features
with supercomputers.
Supercomputers are optimized for…?
high speed calculations
mainframes are optimized for?
high data throughput (rate at which data is processed and output by a system)
desktop computer
a typical computer system with a separate screen and system unit.
Laptop computers
portable computers
Input devices
items of hardware that allow entry of information into the computer
Keyboards
Qwerty
Dvorak
Qwerty vs Dvorak
Qwerty – on most standard machines
Dvorak – different layout to increase speed
Concept Keyboards
Programmed to perform a custom function. These are often in restaurants.
List of input devices (give at leat 5)
Mouse
Numeric keypad
Bree – ITGS SL – 4TH 2
Touchpads
Commonly on laptops
Touchscreens
Commonly on ATM machines/kiosks in the mall
Microphones
Magnetic Stripe Readers
Commonly on hotel key cards
Sensors
Used to measure some aspect of the physical world (i.e light,
Optical Mark Recognition (OMR)
Used for reading multiple choice-style answers i.e lottery tickets)
Scanners
Digital Cameras
Web cams
Radio Frequency Identification (RFID)
sound, vibration, temperature)
Magnetic Stripe Readers
Commonly on hotel key cards
Sensors
Used to measure some aspect of the physical world (i.e light,
sound, vibration, temperature)
Optical Mark Recognition (OMR)
Used for reading multiple choice-style answers i.e lottery tickets)
Radio Frequency Identification (RFID)
the wireless use of electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. The tags contain electronically stored information.
Output devices
Screens/Monitors
Speakers
Printers
Types of Storage Devices
Primary - inside of the computer
secondary - external
Primary storage devices
RAM and ROM
RAM
temporary storage that loses its contents when the
computer is turned down
ROM
primary storage that cannot be changed
Secondary storage devices
External hard drives
Flash drive
Optical storage – CD’s, DVD’s
Netbooks
laptop computers with lower specifications than normal because it is
designed for maximum portability.
Internet
a network of all networks from schools, businesses, organizations,
universities, and homes to create one large network.
Intranet
a network that shares information privately among the employees of an
organization.
Extranet
Allows information to be shared outside of the organisation
Internet Service Providers (ISP).
Local networks such as home or business users are connected via Internet Service Providers (ISP).