C182: INTRODUCTION TO IT (UNIT 3) EXAM
QUESTIONS WITH UPDATED VERIFIED
SOLUTIONS .
What are the 4 main hardware components of a computer? - correct Answers -1. Central
Processing Unit (CPU)
2. Memory
3. Input/Output (I/O) System
4. Bus
Which of the 4 main hardware component of a computer does the following prompt describe?
The device that not only executes your programs' instructions, but also commands the various
components in the computer. - correct Answers -Central Processing Unit (CPU)
Which of the 4 main hardware component of a computer does the following prompt describe?
Stores the program(s) being executed and the data that each program is using. - correct Answers
-Memory
Which of the 4 main hardware component of a computer does the following prompt describe?
Includes all peripheral devices (input, output, storage, network) where storage consists of the
long-term storage devices (disk drives, tape). - correct Answers -Input/Output (I/O) System
Which of the 4 main hardware component of a computer does the following prompt describe?
1
, The device that permits information to move between each component by means of electrical
current. - correct Answers -Bus
How is digital data represented inside the computer? - correct Answers -Digital data is
represented as electrical current being in either a low or high state.
Differentiate between the two different ways in which digital data is represented in a computer. -
correct Answers -High State: there is a noticeable current flowing through the component.
Designated with a 1.
Low State: there is no current, or nearly no current. Designated with a 0.
What kind of hardware does the Bus use to transfer data between computer components? -
correct Answers -Wires, optical cables, or printed circuit boards.
What does the size of a Bus indicate? - correct Answers -It indicates how much data, or bits, can
be transmitted at one time.
What are the 3 unit levels of computer data storage? - correct Answers -1. Bit
2. Byte
3. Word
Define "Bit" - correct Answers -lowest unit level of computer data storage. A single 1 or 0.
Define "Byte" - correct Answers -8 bits; usually the smallest unit of data transfer.
Define "Word" - correct Answers -Can be either 32-bit or 64-bit words; the word is the typical
size of a datum.
Define "System Unit" - correct Answers -The System Unit is the case that contains all the
electronic components of any computer system.
2
QUESTIONS WITH UPDATED VERIFIED
SOLUTIONS .
What are the 4 main hardware components of a computer? - correct Answers -1. Central
Processing Unit (CPU)
2. Memory
3. Input/Output (I/O) System
4. Bus
Which of the 4 main hardware component of a computer does the following prompt describe?
The device that not only executes your programs' instructions, but also commands the various
components in the computer. - correct Answers -Central Processing Unit (CPU)
Which of the 4 main hardware component of a computer does the following prompt describe?
Stores the program(s) being executed and the data that each program is using. - correct Answers
-Memory
Which of the 4 main hardware component of a computer does the following prompt describe?
Includes all peripheral devices (input, output, storage, network) where storage consists of the
long-term storage devices (disk drives, tape). - correct Answers -Input/Output (I/O) System
Which of the 4 main hardware component of a computer does the following prompt describe?
1
, The device that permits information to move between each component by means of electrical
current. - correct Answers -Bus
How is digital data represented inside the computer? - correct Answers -Digital data is
represented as electrical current being in either a low or high state.
Differentiate between the two different ways in which digital data is represented in a computer. -
correct Answers -High State: there is a noticeable current flowing through the component.
Designated with a 1.
Low State: there is no current, or nearly no current. Designated with a 0.
What kind of hardware does the Bus use to transfer data between computer components? -
correct Answers -Wires, optical cables, or printed circuit boards.
What does the size of a Bus indicate? - correct Answers -It indicates how much data, or bits, can
be transmitted at one time.
What are the 3 unit levels of computer data storage? - correct Answers -1. Bit
2. Byte
3. Word
Define "Bit" - correct Answers -lowest unit level of computer data storage. A single 1 or 0.
Define "Byte" - correct Answers -8 bits; usually the smallest unit of data transfer.
Define "Word" - correct Answers -Can be either 32-bit or 64-bit words; the word is the typical
size of a datum.
Define "System Unit" - correct Answers -The System Unit is the case that contains all the
electronic components of any computer system.
2
