Theory Review by Students, IGCSE CS 0478 - dfm

Which type of touch screen is the least expensive?

• Capacitive

• Infra-Red

• Resistive

A URL can be represented using both hexadecimal and binary.

• True

• False

Between the address bus, data bus and control bus, the ________ is only the only bi-directional bus.

• address

• data

• control

What is the right sequence of fetch execute cycle?

• Fetch Execute Decode

• Decode Execute Fetch

• Process Decode Encrypt

• Fetch Decode Execute

Why is a SSD a good choice for storage in a laptop?

• Cheaper than HDD

• More space than HDD

• Less power usage than HDD

• More longevity than HDD

______________ can help to protect and secure your data

• encryption

• firewall

• proxy server

• backup

Which are high level languages

• Assembly

• Python

• Machine Language

• Java

Which of the following are non-volatile?

• ROM

• RAM

• External SSD

• Internal HDD

What is the logic statement for this circuit?

• X = (NOT C) OR (A AND B)

• X = (NOT C) AND (A OR B)

• X = NOT C AND A OR B

What is the logic statement for this logic circuit.

• X = (A AND B) OR (NOT C)

• X = (A AND B) XOR (C)

• X = (A OR B) AND (NOT C)