Question 1

The central processing unit (CPU)(or microprocessor )is the actual hardware that interprets and executes the program (software)instructions and coordinates how all the other hardware devices work together.

Accepted Answer

The central processing unit (CPU)(or microprocessor )is the actual hardware that interprets and executes the program (software)instructions and coordinates how all the other hardware devices work together.

Question 2

The control unit performs all arithmetic operations (for example,addition and subtraction)and all logic operations.

Accepted Answer

The arithmetic-logic unit (ALU)performs all arithmetic operations (for example,addition and subtraction)and all logic operations.

Question 3

Volatility refers to a device's ability to function with or without power.RAM is volatile,meaning it must have constant power to function;its contents are lost when the computer's electric supply fails.

Accepted Answer

Volatility refers to a device's ability to function with or without power.RAM is volatile,meaning it must have constant power to function;its contents are lost when the computer's electric supply fails.

Question 4

Memory sticks provide nonvolatile memory for a range of portable devices including computers,digital cameras,MP3 players,and PDAs.

Accepted Answer

Memory sticks provide nonvolatile memory for a range of portable devices including computers,digital cameras,MP3 players,and PDAs.

Question 5

Complex instruction set computer chips limit the number of instructions the CPU can execute to increase processing speed.

Accepted Answer

Reduced instruction set computer (RISC)chips limit the number of instructions the CPU can execute to increase processing speed.

Question 6

Complex instruction set computer chips limit the number of instructions the CPU can execute to increase processing speed.

Accepted Answer

Reduced instruction set computer (RISC)chips limit the number of instructions the CPU can execute to increase processing speed.

Question 7

Random access memory is the portion of a computer's primary storage that does not lose its contents when one switches off the power.

Accepted Answer

Read-only memory (ROM)is the portion of a computer's primary storage that does not lose its contents when one switches off the power.

Question 8

Flash memory is a special type of rewritable read-only memory (ROM)that is compact and portable.

Accepted Answer

Flash memory is a special type of rewritable read-only memory (ROM)that is compact and portable.

Question 9

Memory cards contain high-capacity storage that holds data such as captured images,music,or text files.

Accepted Answer

Memory cards contain high-capacity storage that holds data such as captured images,music,or text files.

Question 10

Volatility is a protected memory space created by the CPU allowing the computer to create virtual machines.

Accepted Answer

Virtualization is a protected memory space created by the CPU allowing the computer to create virtual machines.

Question 11

Primary storage is the computer's main memory,which consists of the random access memory (RAM),cache memory,and read-only memory (ROM)that is directly accessible to the CPU.

Accepted Answer

Primary storage is the computer's main memory,which consists of the random access memory (RAM),cache memory,and read-only memory (ROM)that is directly accessible to the CPU.

Question 12

Gigahertz is the number of millions of CPU cycles per second.

Accepted Answer

Megahertz (MHz)is the number of millions of CPU cycles per second.

Question 13

A computer is an electronic device operating under the control of instructions stored in its own memory that can accept,manipulate,and store data.

Accepted Answer

A computer is an electronic device operating under the control of instructions stored in its own memory that can accept,manipulate,and store data.

Question 14

Secondary storage consists of equipment designed to store large volumes of data for long-term storage.

Accepted Answer

Secondary storage consists of equipment designed to store large volumes of data for long-term storage.

Question 15

ROM is nonvolatile,meaning it does not require constant power to function.ROM contains essential system programs that neither the user nor the computer can erase.Since the computer's internal memory is blank during start-up,the computer cannot perform any functions unless given start-up instructions.

Accepted Answer

ROM is nonvolatile,meaning it does not require constant power to function.ROM contains essential system programs that neither the user nor the computer can erase.Since the computer's internal memory is blank during start-up,the computer cannot perform any functions unless given start-up instructions.

Question 16

The arithmetic-logic unit includes instructions and literally tells the other hardware devices what to do,based on the software instructions.

Accepted Answer

The control unit interprets software instructions and literally tells the other hardware devices what to do,based on the software instructions.

Question 17

Complex instruction set computer (CISC)chip,is a type of CPU that can recognize as many as 100 or more instructions,enough to carry out most computations directly.

Accepted Answer

Complex instruction set computer (CISC)chips,which is a type of CPU that can recognize as many as 100 or more instructions,enough to carry out most computations directly.

Question 18

Random access memory (RAM)is the computer's primary working memory,in which program instructions and data are stored so that they can be accessed directly by the CPU via the processor's high-speed external data bus.

Accepted Answer

Random access memory (RAM)is the computer's primary working memory,in which program instructions and data are stored so that they can be accessed directly by the CPU via the processor's high-speed external data bus.

Question 19

Cache memory is a small unit of ultra-fast memory that is used to store recently accessed or frequently accessed data so that the CPU does not have to retrieve this data from slower memory circuits such as RAM.

Accepted Answer

Cache memory is a small unit of ultra-fast memory that is used to store recently accessed or frequently accessed data so that the CPU does not have to retrieve this data from slower memory circuits such as RAM.

Question 20

Megahertz is the number of billions of CPU cycles per second.

Accepted Answer

Gigahertz (GHz)is the number of billions of CPU cycles per second.

Quiz 10: Hardware and Software Basics

The central processing unit (CPU)(or microprocessor )is the actual hardware that interprets and executes the program (software)instructions and coordinates how all the other hardware devices work together.

The control unit performs all arithmetic operations (for example,addition and subtraction)and all logic operations.

Volatility refers to a device's ability to function with or without power.RAM is volatile,meaning it must have constant power to function;its contents are lost when the computer's electric supply fails.

Memory sticks provide nonvolatile memory for a range of portable devices including computers,digital cameras,MP3 players,and PDAs.

Complex instruction set computer chips limit the number of instructions the CPU can execute to increase processing speed.

Complex instruction set computer chips limit the number of instructions the CPU can execute to increase processing speed.

Random access memory is the portion of a computer's primary storage that does not lose its contents when one switches off the power.

Flash memory is a special type of rewritable read-only memory (ROM)that is compact and portable.

Memory cards contain high-capacity storage that holds data such as captured images,music,or text files.

Volatility is a protected memory space created by the CPU allowing the computer to create virtual machines.

Primary storage is the computer's main memory,which consists of the random access memory (RAM),cache memory,and read-only memory (ROM)that is directly accessible to the CPU.

Gigahertz is the number of millions of CPU cycles per second.

A computer is an electronic device operating under the control of instructions stored in its own memory that can accept,manipulate,and store data.

Secondary storage consists of equipment designed to store large volumes of data for long-term storage.

The arithmetic-logic unit includes instructions and literally tells the other hardware devices what to do,based on the software instructions.

Complex instruction set computer (CISC)chip,is a type of CPU that can recognize as many as 100 or more instructions,enough to carry out most computations directly.

Random access memory (RAM)is the computer's primary working memory,in which program instructions and data are stored so that they can be accessed directly by the CPU via the processor's high-speed external data bus.

Cache memory is a small unit of ultra-fast memory that is used to store recently accessed or frequently accessed data so that the CPU does not have to retrieve this data from slower memory circuits such as RAM.

Megahertz is the number of billions of CPU cycles per second.