Bus 237 Chapter 4 || 100% VERIFIED QUESTIONS &
ANSWERS!!
Mainframes correct answers the first commercial digital computers --> large, room-sized
devices
Central Processing Unit (CPU) correct answers Selects instructions, processes them, performs
arithmetic and logical comparisons, and stores results of operations in memory
Hertz correct answers represents the speed or number of cycles per second a computer works
at
- Gigahertz: represents a billion cycles (roughly a set of instructions a computer can do) per
second
Random access memory correct answers computer's main memory, works with CPU
Bandwidth correct answers the rate at which computers can communicate
Four basic components of computer hardware correct answers input, processing, output, and
storage
Input devices correct answers receive data/ info
ex. keyboard, touchscreen, scanner, mouse, microphone
Processing devices correct answers include the CPU "brain" of the computer
Output hardware correct answers has the most physical interaction with the computer user by
producing or displaying desired results of a computational task
ex. display monitors, printers, speakers, projectors
Storage hardware correct answers saves data and programs
ex. CD, DVD, flash drive/USB (universal serial bus)
Binary digits (bits) correct answers used by computers to represent data
either a 0 or a 1
Bytes correct answers bits grouped into eight-bit chunks
How does the CPU run a program or process data? correct answers the CPU must first
transfer the program or data from a disk to the main memory (RAM), then to execute
instruction it moves instruction from the RAM into the CPU via the data channel or bus
Data channel/ bus correct answers moves instruction from the RAM to the CPU
Cache correct answers small amount of very fast memory -- keeps frequently used
instructions
Operating System (OS) correct answers a program that controls the computer's resources as
well as a block of data
ANSWERS!!
Mainframes correct answers the first commercial digital computers --> large, room-sized
devices
Central Processing Unit (CPU) correct answers Selects instructions, processes them, performs
arithmetic and logical comparisons, and stores results of operations in memory
Hertz correct answers represents the speed or number of cycles per second a computer works
at
- Gigahertz: represents a billion cycles (roughly a set of instructions a computer can do) per
second
Random access memory correct answers computer's main memory, works with CPU
Bandwidth correct answers the rate at which computers can communicate
Four basic components of computer hardware correct answers input, processing, output, and
storage
Input devices correct answers receive data/ info
ex. keyboard, touchscreen, scanner, mouse, microphone
Processing devices correct answers include the CPU "brain" of the computer
Output hardware correct answers has the most physical interaction with the computer user by
producing or displaying desired results of a computational task
ex. display monitors, printers, speakers, projectors
Storage hardware correct answers saves data and programs
ex. CD, DVD, flash drive/USB (universal serial bus)
Binary digits (bits) correct answers used by computers to represent data
either a 0 or a 1
Bytes correct answers bits grouped into eight-bit chunks
How does the CPU run a program or process data? correct answers the CPU must first
transfer the program or data from a disk to the main memory (RAM), then to execute
instruction it moves instruction from the RAM into the CPU via the data channel or bus
Data channel/ bus correct answers moves instruction from the RAM to the CPU
Cache correct answers small amount of very fast memory -- keeps frequently used
instructions
Operating System (OS) correct answers a program that controls the computer's resources as
well as a block of data
