1.1 Systems architecture J277

Question 1: Firmware (software and hardware are integrated on a circuit board) is often used in what type of system? (4-6)

• Desktop system

• Embedded system

• Operating system

• Point of Sales system

Answer explanation

Desk top system

Question 2: Which one is an example of an embedded system?: (1-3)

• Laptop

• Desktop PC

• Washing machine

• Server

Question 3: Which best describes an embedded system? (4-6)

• Usually has a complex operating system

• Used for specialised tasks

• A desktop PC is a good example

Question 4: Which one is a characteristic of an embedded system? (1-3)

• Has many cores

• Easy to update A

• A single microprocessor including RAM,ROM and a CPU

• Anyone can program

Question 5: Processors have a speed measured in (1-4)

• Hertz

• Bits

• Bytes

• Seconds

Question 6: Which processor speed is the fastest? (1-4)

• 16Hz

• 100MHz

• 4GHz

• 300Hz

Question 7: What doesn’t affect the performance of the computer? (1-4)

• Clock speed

• Number of cores

• Cache size

• The number of instructions in the program

Question 5: If the processing speed goes up from 1GHZ to 4GHZ, what is the potential effect on the performance of the computer? (1-4)

• The maximum number of instructions executed per second doubles

• The maximum number of instructions executed per second quadruples

• The maximum number of instructions executed per second is halved

• The maximum number of instructions executed per second is quartered

Question : If the number of cores goes up from 2 to 4, what is the potential effect on performance? (1-4

• Performance decreases

• The maximum number of instructions executed per second decreases

• Instructions can be executed simultaneously

• Larger programs can be executed

Question : If the processing speed goes up from 2GHZ to 4GHZ and the number of cores goes from 2 to 4, what is the potential effect on the performance of the computer? (5-6)

• The maximum number of instructions executed per second doubles

• The maximum number of instructions executed per second quadruples

• The maximum number of instructions executed per second is halved

• The maximum number of instructions executed per second is quartered