CompTIA A+ Core 1 (220-1001) Study Guide
Study online at https://quizlet.com/_7hezcp
1. Troubleshooting Steps a technician uses to solve a problem. CompTIA A+ defines six steps: identify
Theory the problem; establish a theory of probable cause; test the theory to determine
cause; establish a plan of action to resolve the problem and implement a solution;
verify full system functionality and if applicable implement preventive measures;
and document findings, actions, and outcomes.
2. System Unit con- Motherboard, CPU, RAM, Hard Drives; Every other device is a Peripheral.
tains:
3. Peripheral De- Monitors, Web Cameras, Keyboards, Mice, Game Controllers,
vices
4. HDMI High Definition Multimedia Interface
5. DisplayPort A port that transmits digital video and audio (not analog transmissions) and is
slowly replacing VGA and DVI ports on personal computers.
6. DVI (Digital Visu- An older standard type of plug and connector for computer display devices
al Interface)
7. Network Ca- Uses a type of connector. Creates a Wired Network
ble Connection
(RJ-45)
8. Mini-DIN (PS/2 or Older connector for Keyboards and Mice
DIN-6)
9. Parallel Port (LPT 25 pin female port used by older printers (colored Purple)
port)
10. Serial Port Con- Oldest connection port on computers. Used to connect items like a monitor.
nector
11.
, CompTIA A+ Core 1 (220-1001) Study Guide
Study online at https://quizlet.com/_7hezcp
VGA Port (Video Port used to connect your monitor (or other visual output device) to your com-
Graphics Array) puter. Uses an Analog signal.
12. S-Video connec- Early-gen video connector. Is an analog video signal that carries the video data as
tor two separate signals (brightness and color).
13. Mini DisplayPort A smaller version of DisplayPort that is used on laptops or other mobile devices.
14. SD Card Slot Removable data storage
15. Mass Storage Hard drives, optical discs, removable media drives, etc.
16. A Computer CPU, RAM, Mass Storage, and an Operating System. Laptops, mobile devices, and
has/is: internet of things (IoT) devices
17. 1 GHz = 1 Billion cycles per second
18. 1 MHz = 1 million cycles per second
19. Clock Multiplying Any CPU will take the beat from the System crystal and multiply it. Multipliers are
built in the CPU itself.
20. Overclocking Running a processor at a higher frequency than is recommended by the manu-
facturer, which can result in an unstable system, but is a popular thing to do when
a computer is used for gaming.
21. Multiple-core resulted in only minor changes to CPU internals but substantially improved perfor-
CPUs mance by integrating multiple processing cores and memory caches on a single
chip and by increasing raw CPU speed.
22. Hyper-Threading A technology that permits quicker processing of information by enabling a new
set of instructions to start executing before the previous set has finished.
23. Pipeline Stall When the decoding step of the machine cycle takes more than one clock cycle.
CPU Cache related
, CompTIA A+ Core 1 (220-1001) Study Guide
Study online at https://quizlet.com/_7hezcp
24. Level 1 Cache 64k of RAM. So fast it runs at Multiplied speed of the CPU
25. Level 2 Cache 128-256k of RAM, Runs at half of the clock multiplied speed.
26. Level 3 Cache Megabit size. Runs at base motherboard speed. allows a CPU to avoid a stall.
27. Set Association Defines how the different types of Caches are efficient in handling the right piece
(Cache) of code up to the CPU itself.
28. CPU Caching Works between RAM and the CPU.
29. PGA (Pin Grid Ar- has Pins. AMD
ray)
30. LGA (Land Grid has Pads. Intel
Array)
31. LGA 1151 Mainstream Socket type, moving into the enthusiast side. Intel Socket
32. LGA 2066 Enthusiast world. very high-end processors. Intel Socket
33. AMA4 mainstream AMD socket
34. TR4 Used on enthusiast, high-end. AMD socket
35. CPU Socket The mount where a CPU connects to the Motherboard
36. Orientation Identifier on the CPU on the right position to drop the CPU into a Socket.
Notch
37. OEM CPU If you purchase a CPU packaged in this way, you will need to separately purchase
a fan and heat-sink assembly.
38. Thermal Paste A special compound used between CPUs and heat sinks. It fills in microscopic
gaps and helps draw heat from the CPU into the heat sink where it is dissipated.
Study online at https://quizlet.com/_7hezcp
1. Troubleshooting Steps a technician uses to solve a problem. CompTIA A+ defines six steps: identify
Theory the problem; establish a theory of probable cause; test the theory to determine
cause; establish a plan of action to resolve the problem and implement a solution;
verify full system functionality and if applicable implement preventive measures;
and document findings, actions, and outcomes.
2. System Unit con- Motherboard, CPU, RAM, Hard Drives; Every other device is a Peripheral.
tains:
3. Peripheral De- Monitors, Web Cameras, Keyboards, Mice, Game Controllers,
vices
4. HDMI High Definition Multimedia Interface
5. DisplayPort A port that transmits digital video and audio (not analog transmissions) and is
slowly replacing VGA and DVI ports on personal computers.
6. DVI (Digital Visu- An older standard type of plug and connector for computer display devices
al Interface)
7. Network Ca- Uses a type of connector. Creates a Wired Network
ble Connection
(RJ-45)
8. Mini-DIN (PS/2 or Older connector for Keyboards and Mice
DIN-6)
9. Parallel Port (LPT 25 pin female port used by older printers (colored Purple)
port)
10. Serial Port Con- Oldest connection port on computers. Used to connect items like a monitor.
nector
11.
, CompTIA A+ Core 1 (220-1001) Study Guide
Study online at https://quizlet.com/_7hezcp
VGA Port (Video Port used to connect your monitor (or other visual output device) to your com-
Graphics Array) puter. Uses an Analog signal.
12. S-Video connec- Early-gen video connector. Is an analog video signal that carries the video data as
tor two separate signals (brightness and color).
13. Mini DisplayPort A smaller version of DisplayPort that is used on laptops or other mobile devices.
14. SD Card Slot Removable data storage
15. Mass Storage Hard drives, optical discs, removable media drives, etc.
16. A Computer CPU, RAM, Mass Storage, and an Operating System. Laptops, mobile devices, and
has/is: internet of things (IoT) devices
17. 1 GHz = 1 Billion cycles per second
18. 1 MHz = 1 million cycles per second
19. Clock Multiplying Any CPU will take the beat from the System crystal and multiply it. Multipliers are
built in the CPU itself.
20. Overclocking Running a processor at a higher frequency than is recommended by the manu-
facturer, which can result in an unstable system, but is a popular thing to do when
a computer is used for gaming.
21. Multiple-core resulted in only minor changes to CPU internals but substantially improved perfor-
CPUs mance by integrating multiple processing cores and memory caches on a single
chip and by increasing raw CPU speed.
22. Hyper-Threading A technology that permits quicker processing of information by enabling a new
set of instructions to start executing before the previous set has finished.
23. Pipeline Stall When the decoding step of the machine cycle takes more than one clock cycle.
CPU Cache related
, CompTIA A+ Core 1 (220-1001) Study Guide
Study online at https://quizlet.com/_7hezcp
24. Level 1 Cache 64k of RAM. So fast it runs at Multiplied speed of the CPU
25. Level 2 Cache 128-256k of RAM, Runs at half of the clock multiplied speed.
26. Level 3 Cache Megabit size. Runs at base motherboard speed. allows a CPU to avoid a stall.
27. Set Association Defines how the different types of Caches are efficient in handling the right piece
(Cache) of code up to the CPU itself.
28. CPU Caching Works between RAM and the CPU.
29. PGA (Pin Grid Ar- has Pins. AMD
ray)
30. LGA (Land Grid has Pads. Intel
Array)
31. LGA 1151 Mainstream Socket type, moving into the enthusiast side. Intel Socket
32. LGA 2066 Enthusiast world. very high-end processors. Intel Socket
33. AMA4 mainstream AMD socket
34. TR4 Used on enthusiast, high-end. AMD socket
35. CPU Socket The mount where a CPU connects to the Motherboard
36. Orientation Identifier on the CPU on the right position to drop the CPU into a Socket.
Notch
37. OEM CPU If you purchase a CPU packaged in this way, you will need to separately purchase
a fan and heat-sink assembly.
38. Thermal Paste A special compound used between CPUs and heat sinks. It fills in microscopic
gaps and helps draw heat from the CPU into the heat sink where it is dissipated.
