ICD2O1 Exam Review 2026
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Hardware - 🧠 ANSWER ✔✔All computer parts that you can physically see
or touch.
Software - 🧠 ANSWER ✔✔Computer programs that tell the hardware how
to operate.
Input Devices - 🧠 ANSWER ✔✔Devices allowing communication from the
user to the computer.
,Output Devices - 🧠 ANSWER ✔✔Devices allowing communication from the
computer to the user.
Peripheral - 🧠 ANSWER ✔✔Everything outside and connected to the
system unit.
Components of a Computer Case - 🧠 ANSWER ✔✔Motherboard, CPU,
RAM, ROM-BIOS, Expansion Slot, Expansion Card, PCMCIA Cards.
Parts in the back of a Computer - 🧠 ANSWER ✔✔Jacks, ports, connectors.
What is a Male Connector? - 🧠 ANSWER ✔✔Connectors containing pins.
What is a Female Connector? - 🧠 ANSWER ✔✔Connectors having holes.
Bus - 🧠 ANSWER ✔✔Similar to a highway, carries information between
devices in a computer.
Bus Types - 🧠 ANSWER ✔✔Industry Standard Architecture (ISA),
Peripheral Component Interconnect (PCI), Accelerated Graphics Port
(AGP).
Bus Width - 🧠 ANSWER ✔✔How many "lanes", or more relevant, bits in the
bus. The bigger bus width, the more information that can travel at the same
time.
, Bus Speed - 🧠 ANSWER ✔✔The speed of how fast information travels
through a bus, measured in MHz. The higher the bus speed, the faster
information travels.
Common types of expansion cards - 🧠 ANSWER ✔✔Modem, Network,
Video/Graphics, Sound, and additional ports
Computer Memory Retrieval Process - 🧠 ANSWER ✔✔Internal Cache →
External Cache → RAM → Hard Disk
RAM vs ROM - 🧠 ANSWER ✔✔RAM (Random Access Memory) stores
memory that can be modified, erased, or read, and is temporary/volatile.
ROM (Read Only Memory) stores memory that can only be read and not
modified/erased but is permanent/non-volatile.
Factors Contributing to Computer Performance - 🧠 ANSWER ✔✔CPU
Speed, Amount of RAM, Type of Video Card, Hard Drive Speed, Free Hard
Disk Space, Hard Disk Fragmentation/Organization, Multitasking
Considerations.
Computational Thinking - 🧠 ANSWER ✔✔Process of breaking down
complex problems into smaller parts, understanding, and developing
solutions.
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Expert Verified | Ace the Test
Hardware - 🧠 ANSWER ✔✔All computer parts that you can physically see
or touch.
Software - 🧠 ANSWER ✔✔Computer programs that tell the hardware how
to operate.
Input Devices - 🧠 ANSWER ✔✔Devices allowing communication from the
user to the computer.
,Output Devices - 🧠 ANSWER ✔✔Devices allowing communication from the
computer to the user.
Peripheral - 🧠 ANSWER ✔✔Everything outside and connected to the
system unit.
Components of a Computer Case - 🧠 ANSWER ✔✔Motherboard, CPU,
RAM, ROM-BIOS, Expansion Slot, Expansion Card, PCMCIA Cards.
Parts in the back of a Computer - 🧠 ANSWER ✔✔Jacks, ports, connectors.
What is a Male Connector? - 🧠 ANSWER ✔✔Connectors containing pins.
What is a Female Connector? - 🧠 ANSWER ✔✔Connectors having holes.
Bus - 🧠 ANSWER ✔✔Similar to a highway, carries information between
devices in a computer.
Bus Types - 🧠 ANSWER ✔✔Industry Standard Architecture (ISA),
Peripheral Component Interconnect (PCI), Accelerated Graphics Port
(AGP).
Bus Width - 🧠 ANSWER ✔✔How many "lanes", or more relevant, bits in the
bus. The bigger bus width, the more information that can travel at the same
time.
, Bus Speed - 🧠 ANSWER ✔✔The speed of how fast information travels
through a bus, measured in MHz. The higher the bus speed, the faster
information travels.
Common types of expansion cards - 🧠 ANSWER ✔✔Modem, Network,
Video/Graphics, Sound, and additional ports
Computer Memory Retrieval Process - 🧠 ANSWER ✔✔Internal Cache →
External Cache → RAM → Hard Disk
RAM vs ROM - 🧠 ANSWER ✔✔RAM (Random Access Memory) stores
memory that can be modified, erased, or read, and is temporary/volatile.
ROM (Read Only Memory) stores memory that can only be read and not
modified/erased but is permanent/non-volatile.
Factors Contributing to Computer Performance - 🧠 ANSWER ✔✔CPU
Speed, Amount of RAM, Type of Video Card, Hard Drive Speed, Free Hard
Disk Space, Hard Disk Fragmentation/Organization, Multitasking
Considerations.
Computational Thinking - 🧠 ANSWER ✔✔Process of breaking down
complex problems into smaller parts, understanding, and developing
solutions.
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
