Computer Competency Study Guide / Exam
Questions with Verified Answers / 2025.
Terms in this set (33)
The five primary Input devices, Output devices, Central Processing Unit or
components of a CPU, Memory, and Storage devices.
computer
Input Devices Any hardware component that allows a user to enter data
or instructions into a computer. Six commonly used are the
keyboard, mouse, microphone, scanner, digital camera and
PC camera.
Keyboard Contains keys that allow a user to enter data and
instructions into a computer.
Mouse A small handheld device that controls the movement of a
symbol on the screen called a pointer. With it, you can
make choices, initiate a process and select objects.
Microphone Allows a user to speak to the computer to enter data and
instructions into the computer.
Scanner Reads printed text and pictures and then translates the
results into a form the computer can use.
Digital camera Allows a user to take pictures and transfer the
photographed image to the computer, instead of
storing on traditional film.
PC camera Allows the users to have video telephone or
conference calls - where the participants can see each
other while communicating.
, Any hardware component that can convey information to a
Output Devices user. Three commonly used are a printer, a monitor and
speakers.
Printer Produces text and graphics on a physical medium such as
paper or a transparency. This physical format is also
referred to as a hard copy. The resolution is measured in
DPIs.
Monitor Looks like a small television screen, displays text, graphics,
and video information. The viewable size is the diagonal
measurement of the actual viewing area.
Speakers Allow the user to hear music, voice, and other sounds generated
by the computer.
Serial port The interface that connects devices to the system unit by
transmitting data one bit at a time. Mainly used for devices
that do not require fast data transmission rates, such as a
mouse, keyboard,or modem.
Universal serial bus (USB) Can connect up to 127 different peripheral devices with a
port single connector type.
Analog signals The telephone system uses continuously-variable
signals; they work over a continuous range (like the
sound that comes from speakers).
Digital signals Your PC moves and stores data as these signals using a series
of 1's and 0's. This data is either on (1) or off(0) at any given
time; never any in-between value.
Questions with Verified Answers / 2025.
Terms in this set (33)
The five primary Input devices, Output devices, Central Processing Unit or
components of a CPU, Memory, and Storage devices.
computer
Input Devices Any hardware component that allows a user to enter data
or instructions into a computer. Six commonly used are the
keyboard, mouse, microphone, scanner, digital camera and
PC camera.
Keyboard Contains keys that allow a user to enter data and
instructions into a computer.
Mouse A small handheld device that controls the movement of a
symbol on the screen called a pointer. With it, you can
make choices, initiate a process and select objects.
Microphone Allows a user to speak to the computer to enter data and
instructions into the computer.
Scanner Reads printed text and pictures and then translates the
results into a form the computer can use.
Digital camera Allows a user to take pictures and transfer the
photographed image to the computer, instead of
storing on traditional film.
PC camera Allows the users to have video telephone or
conference calls - where the participants can see each
other while communicating.
, Any hardware component that can convey information to a
Output Devices user. Three commonly used are a printer, a monitor and
speakers.
Printer Produces text and graphics on a physical medium such as
paper or a transparency. This physical format is also
referred to as a hard copy. The resolution is measured in
DPIs.
Monitor Looks like a small television screen, displays text, graphics,
and video information. The viewable size is the diagonal
measurement of the actual viewing area.
Speakers Allow the user to hear music, voice, and other sounds generated
by the computer.
Serial port The interface that connects devices to the system unit by
transmitting data one bit at a time. Mainly used for devices
that do not require fast data transmission rates, such as a
mouse, keyboard,or modem.
Universal serial bus (USB) Can connect up to 127 different peripheral devices with a
port single connector type.
Analog signals The telephone system uses continuously-variable
signals; they work over a continuous range (like the
sound that comes from speakers).
Digital signals Your PC moves and stores data as these signals using a series
of 1's and 0's. This data is either on (1) or off(0) at any given
time; never any in-between value.
