COS10004 Computer Systems Revision Quiz

Which of these are basic functions of a computer? Select all that is true.

• Processing Data

• Storing Data

• Moving Data to I/O

• Controlling the Functions

Which of these are examples of computers? Select all that is true.

• Laptop

• Smart Watch

• Smart Appliance

• Kitchen Timer

• Aerial Drone

What is a register? Select all that is true.

• Often built using flip flops

• Is a type of hard drive used for long-term data storage

• Is a container consisting of logic circuits

• Used to store, retrieve, and release electrical signals representing data

• Is a temporary storage location for data that is being processed by the operating system

What does the MBR and MAR registers stand for?

• Main bus register (MBR) and Memory address register (MAR)

• Memory buffer register (MBR) and Main access register (MAR)

• Memory buffer register (MBR) and Memory address register (MAR)

A combinational circuit produces an output that depends solely on the current input values. Which of these are examples of combinational circuits? Pick all that apply.

• Flip Flops

• Multiplexer

• Full Adder

• Register

• Decoder

A sequential circuit's output depends on both the current input values and the past state of the circuit. Which of these are sequential circuits? Pick all that apply.

• Flip Flops

• Multiplexer

• Full Adder

• Register

• Decoder

What is the difference between asynchronous and synchronous registers?

• Synchronous registers are more complex than asynchronous registers because they require a clock signal.

• Asynchronous registers change state without a clock signal, while synchronous registers change state only when a clock signal tells them to.

• Asynchronous registers are faster than synchronous registers because they don't have to wait for a clock signal.

Name the three main types of computer bus lines.

• Data lines, input lines, and output lines

• Input lines, output lines, and control lines

• Data lines, address lines, and power lines

• Data lines, address lines, and control lines

Which of these are examples of analogue and discrete signals? Select all that is true.

• Analog: Radio signals, Discrete: Digital control signals

• Analog: Temperature readings,

  Discrete: Binary data

• Analog: Binary data, Discrete: Temperature readings

• Analog: Digital control signals, Discrete: Radio signals

What is a full adder?

• A digital circuit that adds two binary digits (one significant bit and one carry bit) and outputs a sum and a carry

• A digital circuit that adds three binary digits (two significant bits and one carry bit) and outputs a sum and a carry

• A digital circuit that adds three binary digits (one significant bit and two carry bits) and outputs a sum and a carry