Computer Information Systems (CISB
11) Exam Questions and Answers
Arithmetic/Logic Unit
(ALU) - Answer-The part of the CPU that performs logical operations and integer
arithma
ASCII (American Standard
Code for Information
Interchange) - Answer-a fixed-length, binary coding system widely used to represent
text-based data for computer processing on many types of computers.
Audio ports - Answer-Used to connect speakers, headphones or microphones.
Typically a 3.5 mm jack.
Bandwidth - Answer-The amount of data that can be theoretically transferred through
a communication medium in a given period of time. Bus width + bus speed.
Bay - Answer-an opening inside the system unit in which you can install additional
equipment such as a hard drive or optical drive.
Binary numbering system - Answer-The numbering system that represents all
numbers using just two symbols (0 and 1).
Bit - Answer-The smallest unit of data a digital computer can recognize; represented
by 0 or 1.
Bus - Answer-An electronic path on the motherboard or within the CPU or other
computer component along which data is transferred.
bus interface unit - Answer-The part of the CPU where instructions and data flow in
and out of the CPU.
Byte - Answer-A group of 8 bits. There can be 256 combinations of zero and one
which is enough to represent the entire set of characters on a keyboard more than
once. Memory and storage capacity is measured in bytes.
Cache memory - Answer-A group of fast memory chips located on or near the CPU
to help speed up processing. Cache memory is volatile.
Carbon nanotubes (CNTs) - Answer-Tiny, hollow tubes made by rolling up sheets of
graphene.
Central Processing Unit (CPU) - Answer-It performs the calculations and does the
comparisons needed for
processing, as well as controls the other parts of the computer system. Also called
the processor.
, CMOS - Answer-A type of memory technology that uses battery power to retain
information when the power to the computer is off. Often used to hold BIOS. CMOS
is non‐volatile due to the battery supplying power.
Communications - Answer-The transmission of data from one device to another.
Hardware devices: modem, network adapter, router.
Computer chip - Answer-a small piece of semiconducting material, usually silicon, on
which integrated circuits are etched.
Computer word - Answer-The amount of data (typically measured in bits or bytes)
that a CPU can manipulate at one time.
Control Unit - Answer-The part of a CPU core that coordinates its operations.
Core - Answer-An independent processor on a single CPU.
CPU clock speed - Answer-The CPU clock speed, typically rated in gigahertz (GHz),
is ten
times faster than the speed of the system clock. It is usually listed
as the speed of the computer in ads.
Decimal numbering system - Answer-The numbering system that represents all
numbers using 10 symbols (0‐9).
Decode unit - Answer-The part of a CPU core that translates instructions into a form
that can be processed by the ALU and FPU.
Display ports - Answer-(HDMI High‐Definition Multimedia Interface), DisplayPort, DVI
(Digital Video Interface), Mini‐HDMI, and Micro‐HDMI - digital
VGA (Video Graphics Adapter) - analog.
Dual-core CPU - Answer-A CPU that contains two separate processing cores.
EBCDIC (Extended Binary‐Coded Decimal Interchange Code) - Answer-A fixed‐
length, binary coding system widely used to represent text‐
based data on IBM mainframe computers.
eSATA (external SATA) - Answer-Used to connect external SATA devices such as
hard drives.
Exabyte (EB) - Answer-Approximately 1,000 petabytes.
Exascale computing - Answer-The ability of a computer to process data at exaflop
(1,000 petaflops) speeds.
Expansion bus - Answer-A bus that connects the CPU to peripheral devices.
11) Exam Questions and Answers
Arithmetic/Logic Unit
(ALU) - Answer-The part of the CPU that performs logical operations and integer
arithma
ASCII (American Standard
Code for Information
Interchange) - Answer-a fixed-length, binary coding system widely used to represent
text-based data for computer processing on many types of computers.
Audio ports - Answer-Used to connect speakers, headphones or microphones.
Typically a 3.5 mm jack.
Bandwidth - Answer-The amount of data that can be theoretically transferred through
a communication medium in a given period of time. Bus width + bus speed.
Bay - Answer-an opening inside the system unit in which you can install additional
equipment such as a hard drive or optical drive.
Binary numbering system - Answer-The numbering system that represents all
numbers using just two symbols (0 and 1).
Bit - Answer-The smallest unit of data a digital computer can recognize; represented
by 0 or 1.
Bus - Answer-An electronic path on the motherboard or within the CPU or other
computer component along which data is transferred.
bus interface unit - Answer-The part of the CPU where instructions and data flow in
and out of the CPU.
Byte - Answer-A group of 8 bits. There can be 256 combinations of zero and one
which is enough to represent the entire set of characters on a keyboard more than
once. Memory and storage capacity is measured in bytes.
Cache memory - Answer-A group of fast memory chips located on or near the CPU
to help speed up processing. Cache memory is volatile.
Carbon nanotubes (CNTs) - Answer-Tiny, hollow tubes made by rolling up sheets of
graphene.
Central Processing Unit (CPU) - Answer-It performs the calculations and does the
comparisons needed for
processing, as well as controls the other parts of the computer system. Also called
the processor.
, CMOS - Answer-A type of memory technology that uses battery power to retain
information when the power to the computer is off. Often used to hold BIOS. CMOS
is non‐volatile due to the battery supplying power.
Communications - Answer-The transmission of data from one device to another.
Hardware devices: modem, network adapter, router.
Computer chip - Answer-a small piece of semiconducting material, usually silicon, on
which integrated circuits are etched.
Computer word - Answer-The amount of data (typically measured in bits or bytes)
that a CPU can manipulate at one time.
Control Unit - Answer-The part of a CPU core that coordinates its operations.
Core - Answer-An independent processor on a single CPU.
CPU clock speed - Answer-The CPU clock speed, typically rated in gigahertz (GHz),
is ten
times faster than the speed of the system clock. It is usually listed
as the speed of the computer in ads.
Decimal numbering system - Answer-The numbering system that represents all
numbers using 10 symbols (0‐9).
Decode unit - Answer-The part of a CPU core that translates instructions into a form
that can be processed by the ALU and FPU.
Display ports - Answer-(HDMI High‐Definition Multimedia Interface), DisplayPort, DVI
(Digital Video Interface), Mini‐HDMI, and Micro‐HDMI - digital
VGA (Video Graphics Adapter) - analog.
Dual-core CPU - Answer-A CPU that contains two separate processing cores.
EBCDIC (Extended Binary‐Coded Decimal Interchange Code) - Answer-A fixed‐
length, binary coding system widely used to represent text‐
based data on IBM mainframe computers.
eSATA (external SATA) - Answer-Used to connect external SATA devices such as
hard drives.
Exabyte (EB) - Answer-Approximately 1,000 petabytes.
Exascale computing - Answer-The ability of a computer to process data at exaflop
(1,000 petaflops) speeds.
Expansion bus - Answer-A bus that connects the CPU to peripheral devices.
