COMPTIA A+ EXAM QUESTIONS AND
ANSWERS GRADED A+ 2025/2026
Storage, Input, Processing, Output, Storage - ANS Computers use these 5 steps to operate.
System Unit - ANS The full enclosure system that holds the motherboard, RAM, GPU, PSU,
harddrives, cooling, etc.
Monitor - ANS This is a peripheral of the system unit, used to display output to the user via a
readable and/or interactive interface.
Keyboard - ANS This is a peripheral of the system unit, used for input from the user. It has
many keys available to input in the form of alphabets, numerals, and symbols.
Mouse - ANS This is a peripheral of the system unit, used for input from the user in the form
of a handheld device that is moved around on top of a surface. It is used to interact with the
monitor. It moves a pointer on the screen.
Speaker - ANS This is a peripheral of the system unit, used for auditory output to the user.
Printer - ANS This is a peripheral of the system unit, used to create hardcopy data. Some
types of these may also have built-in scanners, and/or fax. It is an output device.
Scanner - ANS This is a peripheral of the system unit, used to create softcopies of hardcopy
data. It is an input device.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, USB - ANS This port comes in 3 different flavors and supports plug and play. It is one of the
most common port types today, replacing the older ports.
Ethernet - ANS This port is used primarily with wired networks, using an 8-pin RJ-45
connector.
ESATA - ANS This port is used almost exclusively with external hard drives.
S/PDIF - ANS This port is supported by fiber optic cabling, occasionally by a coaxial-type
connector that screws on. It is used for audio transfer.
DVI - ANS This port is used for monitors or projectors.
HDMI - ANS This port is used for both audio and video, connecting to televisions or any type
of media receiver.
1/8 inch mini RCA jack - ANS Used as direct links to microphones or speakers, they are small
round jacks used for audio transfer.
Power - ANS This plug is located on the back of a PSU, used to transfer power from a wall
socket to the PC.
Firewire - ANS A declining connector, this plug is mainly used in camcorders for video/audio
transfer.
mini DIN - ANS A legacy connector, this connector is used for mouse and keyboard inputs.
May also be referred to as PS/2 connector, named after the first PC that used them.
9 pin DB - ANS A legacy connector with a D sub serial port, it was used with an adapter to
support mice, keyboards, printers, etc.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
ANSWERS GRADED A+ 2025/2026
Storage, Input, Processing, Output, Storage - ANS Computers use these 5 steps to operate.
System Unit - ANS The full enclosure system that holds the motherboard, RAM, GPU, PSU,
harddrives, cooling, etc.
Monitor - ANS This is a peripheral of the system unit, used to display output to the user via a
readable and/or interactive interface.
Keyboard - ANS This is a peripheral of the system unit, used for input from the user. It has
many keys available to input in the form of alphabets, numerals, and symbols.
Mouse - ANS This is a peripheral of the system unit, used for input from the user in the form
of a handheld device that is moved around on top of a surface. It is used to interact with the
monitor. It moves a pointer on the screen.
Speaker - ANS This is a peripheral of the system unit, used for auditory output to the user.
Printer - ANS This is a peripheral of the system unit, used to create hardcopy data. Some
types of these may also have built-in scanners, and/or fax. It is an output device.
Scanner - ANS This is a peripheral of the system unit, used to create softcopies of hardcopy
data. It is an input device.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, USB - ANS This port comes in 3 different flavors and supports plug and play. It is one of the
most common port types today, replacing the older ports.
Ethernet - ANS This port is used primarily with wired networks, using an 8-pin RJ-45
connector.
ESATA - ANS This port is used almost exclusively with external hard drives.
S/PDIF - ANS This port is supported by fiber optic cabling, occasionally by a coaxial-type
connector that screws on. It is used for audio transfer.
DVI - ANS This port is used for monitors or projectors.
HDMI - ANS This port is used for both audio and video, connecting to televisions or any type
of media receiver.
1/8 inch mini RCA jack - ANS Used as direct links to microphones or speakers, they are small
round jacks used for audio transfer.
Power - ANS This plug is located on the back of a PSU, used to transfer power from a wall
socket to the PC.
Firewire - ANS A declining connector, this plug is mainly used in camcorders for video/audio
transfer.
mini DIN - ANS A legacy connector, this connector is used for mouse and keyboard inputs.
May also be referred to as PS/2 connector, named after the first PC that used them.
9 pin DB - ANS A legacy connector with a D sub serial port, it was used with an adapter to
support mice, keyboards, printers, etc.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
