Dreamweaver

HTML vs CSS

Hypertext markup language places things, make pieces of text go where they go; it puts things in places.

Cascading Style Sheets are the styles of the web page, it allows you change things about the website such as the font or they way links are shown. Like this, or this.

Questions on Storage Devices

The RED writing is the answers.

RAM and ROM are types of storage.
(a) Explain the major difference between RAM and ROM:
RAM is random access memory and is read only memory.

Ring two items which are storage media.
A. Flash memory card 
B. Graph plotter
C. Magnetic disc
D. OCR
E. OMR
F. Touch pad

Ring two items which are magnetic storage media.

A. CD ROM 

B. DVD ROM

C. DVD RW

D. Floppy disk
E. Hard disk
F. Memory stick

Ring two items which are storage media.
A. Bar code reader
B. DVD RAM
C. Joystick
D. Magnetic tape
E. Sensor
F. Touch screen

                                                                                                    True     False       

Backing storage devices are examples of software

Thanks to Clapham  : )

The use of backing storage at KC

Use of Backing Storage at Kings College

• Fixed hard discs- Used in every computer in the school
• Portable hard discs- Used to store large files
• Magnetic tape- Uses serial access for reading and writing.  Used for backups of file servers for computer networks. Optical backing storage media such as CDs and DVD and is quite cheap for backing up files at King's.
• Optical backing storage media such as CDs and DVD-CDs tend to be used for large files (but smaller than 1Gb) which are too big for a floppy disc to hold such as music and general animation.  DVDs are used to hold very large files (several Gb) such as films at school.
• CD ROM/DVD ROM-Applications which require the prevention of deletion of data, accidental or otherwise for students.
• CD R/DVD- Applications which require a single burning of data, e.g. CDs Z recording of music downloads from the internet, recording of music from MP3 format, recording of data for archiving or backup purposes at King's.
• CD RW/DVD RW-Applications which require the updating of information and ability to record over old data at King's.
• DVD RAM- Same properties as DVD RW but quicker access and data can be overwritten more easily. 
• Blu-ray-Capacities of 25Gb, 50Gb and 100 Gb.  Used for storing films (movies). 25Gb equates to 2 hrs HDTV, 13hrs standard definition TV
• Solid state backing storage-Smallest form of memory, used as removable storage at school.  More robust than other forms of storage. 
• Memory sticks/Pen drive-Used at Kings to transport small files conveniently.
• Flash memory cards-Used in digital cameras, palmtops, mobile phones, MP3 players at Kings

Thanks Robert Sheetz for this.

Why back up?

Why Back Up?
You should back up you data because, if your computer is hacked, there is a power surge(which could fry your mother board, destroying the file that you had saved it to), or your computer just dies in general. All of these things would result in your loss of data if you hadn't backed them up.

On to What?
You could back up your files onto an external hard drive that you could remove afterwards and store somewhere safe, or you could back it up onto the hard drive in your PC but there are the risks that I have mentioned above.

How Often?
Ideally you should back up your data every few hours but being realistic you should try and do it once a day or so

Thanks to Clapham

Privacy

Parents worry about disclosures. Facebook rewards disclosure with attention (social stimulus). Feedback with action make us better at task (taking photos). When the reaction is far away it doesn't make enough of a difference. Competitors want their social network to be more private and less creepy. School blocking websites such as FB make kids using the internet learn less about using it well. Kids should be taught to examine things and find out how to get around their own neighborhoods without being seen by CCTV.