CAT Theory Revision 1

State ALL the disadvantages of wireless keyboards.

• Prone to interference/crosstalk

• If transceiver is damaged/lost/stolen, keyboard has to be replaced as well/Easily stolen

• Limited range

• Mobile / Portability

• Keyboard drivers only load once operating system is loaded

State TWO ways in which the GUI of a mobile app differs from the desktop version of the same app.

• Buttons/Components designed for smaller screen

• Scroll bars to move around

• More screen elements visible

• Designed for touch interface

An asterisk used in search criteria is called a wild card.

• True

• False

Grouping can be used to automatically highlight specific values in a spreadsheet according to a rule.

• True

• False

What software manages all the activities on a device?

Phishing is a type of malware that demands a payment to restore the files it illegally encrypted.

• True

• False

Defragmentation makes up your computer faster, but do not create more storage space.

• True

• False

Which hardware device can create electronic copies of documents by capturing an image?

• Printer

• Scanner

• Stylus

• Monitor

Which CPU in the following list is the best choice for video-editing?

• i3

• i7

• Pentium

• Celeron

Which storage device will be more likely to break when it is accidentally dropped?

• HDD

• USB flash disk

• SSD

• MicroSD card