unit 3 4 5

___ is a device for controlling the cursor and selecting items on the screen

• mouse

• keyboard

• light pen

• scanner

___ appear at the top of the keyboard and can be programmed to do special tasks

• cursor control keys

• function keys

• alphanumeric keys

• dedicated keys

___ --include arrow keys and keys such as End.Home.Page up and Page down

• cursor control keys

• alphanumeric keys

• function keys

• dedicated keys

___ are used to issue commands or to produce alternative characters,e.g the Ctrl key or Alt key

• cursor control keys

• alphanumeric keys

• functions keys

• dedicated keys

___ works by detecting light from the computer screen and is used by pointing it directly at the screen display

• mouse

• keyboard

• light pen

• scanner

this key removes the character to the left of the cursor or any selected text

• shift

• tab

• backspace

• CTr

This key produces UPPER CASE letters,but it does not affect numbers or sysmbols

• shift

• Cap lock

• backspace

• CTs

Which multi_user OS is used on large ,powerful computers?

• Windows

• Mac OS

• Unix

• Linux

Which multi-user OS is a open - source software developed the GNU General Public License?

• Windows

• Mac OS

• Unix

• Linux

Which is NOT a characteristic of GUI?

• user-friendly

• slow

• graphic-based

• intuitive