…………… uniquely identifies a person on the basis of physical or behavioural traits such as fingerprints, DNA, etc.

1. Touch screen
2. Biometric sensor
3. Optical character reader
4. QR code

Which smaller unit of CPU directs and coordinates all activities within it and determines the sequence in which instructions are executed, sending instruction sequence to other smaller units?

1. CU
2. ALU
3. Processor
4. All of these

Convert the following into Kilobytes:

2.7 GB = …………… Kilobytes

1. 2831155.2
2. 2764.8
3. 2831155.02
4. 2764.08

Spreadsheet is an example of …………… .

1. Application Software
2. System Software
3. Operating System
4. Utility Software