Lesson 01-A Flashcards
What are the main functions of peripheral devices in a PC?
Input, output, or external storage
Peripheral devices include keyboards, mice, monitors, and external drives.
What is housed within the system case/chassis of a PC?
Motherboard, CPU, memory modules, adapter cards, fixed disks, power supply unit
The case protects and organizes these components.
How is a tower case designed?
Oriented vertically, can be placed on a desk or floor
Tower cases are common for desktop PCs.
What should you understand to perform PC maintenance?
How to open a desktop computer’s case
This includes removing side covers and accessing internal components.
What does the front panel of a PC case provide access to?
Removable media drives, power switch, drive operation LEDs
The front panel is essential for user interaction.
What is the purpose of the rear panel of a PC case?
Access to power supply unit sockets and I/O ports
It is critical for connecting external devices.
What is the function of I/O ports?
Allows devices to connect to the PC via a peripheral cable
These ports may be specific to device types or support multiple types.
Define ‘hardware port’.
External connection point for a bus interface
Enables data transfer between devices.
What is a connector in the context of computer peripherals?
Part of a peripheral cable that fits into a port
Connectors have specific shapes or form factors.
What is the primary purpose of the Universal Serial Bus (USB)?
Connecting most types of peripheral devices to a computer
USB is widely used for various device classes.
What does USB 2.0 HighSpeed standard specify?
Data rate of 480 Mbps shared among devices
USB 2.0 is half-duplex, meaning devices cannot send and receive simultaneously.
What are the connector types specified in USB 2?
Type A, Type B, Type B Mini, Type B Micro
Each type has specific use cases for different devices.
What advantage does USB-C offer?
Reversible connector design
USB-C is more robust and can be used interchangeably at both ends.
What is the maximum cable length for FullSpeed and HighSpeed USB devices?
5 m
LowSpeed devices have a maximum length of 3 m.
What does HDMI stand for?
High-Definition Multimedia Interface
HDMI is widely used for video and audio transmission.
What are the types of HDMI connectors?
Type A, Type C, Type D
These connectors ensure correct orientation and compatibility.
What is the primary advantage of DisplayPort over HDMI?
Support for daisy-chaining multiple monitors
HDMI requires a separate port for each monitor.
What does Thunderbolt 3 use for its physical interface?
USB-C connector type
This allows for high-speed data transfer and versatility.
True or False: USB 3 Type A connections are compatible with USB 1.1 and 2.0 connections.
True
However, Type B connections are not compatible across versions.
Fill in the blank: The maximum power that a power delivery (PD)-capable USB port can supply is _______.
100 watts
This is contingent on suitable connectors and cabling.
What does the term ‘bandwidth’ refer to in video cables?
The data transfer capacity of the cable
It is determined by resolution and frame rate.
What is the typical resolution format for 4K video?
3840x2160
This format requires high bandwidth for proper transmission.
What is the primary use of the USB Micro connector?
Connecting smaller devices like smartphones and tablets
It is distinctively flatter than older mini connectors.
What types of devices can be connected to Thunderbolt 3 ports using converter cables?
Thunderbolt 1 or 2 devices
Converter cables allow Thunderbolt 1 or 2 devices to connect to Thunderbolt 3 ports.
What will happen if a Thunderbolt device is connected to a non-Thunderbolt USB port?
The Thunderbolt device will not work
Thunderbolt devices require a Thunderbolt-enabled USB port to function.
What is the maximum data transfer speed supported by Thunderbolt 3 over a short, high-quality cable?
Up to 40 Gbps
This speed is achievable over a cable length of up to 0.5 m (1.6 ft).
How can you identify a USB-C port that supports Thunderbolt 3?
Look for the flash icon or check system documentation
Not all USB-C ports support Thunderbolt 3.
What type of connector do Apple’s iPhone and iPad devices use?
Lightning connector
The Lightning connector is proprietary to Apple and is reversible.
What type of adapter cable is needed to connect an Apple device to a PC?
Lightning-to-USB A or Lightning-to-USB C
These adapters allow connectivity between Apple devices and PCs.
What does SATA stand for?
Serial Advanced Technology Attachment
SATA is the standard means of connecting internal storage drives within a desktop PC.
What is the maximum cable length for SATA connections?
Up to 1 m (39 in.)
SATA cables are terminated with compact 7-pin connectors.
What is the purpose of the 7-pin data connector in SATA?
To connect data
The 7-pin data connector does not supply power.
What is the maximum speed supported by the first commercially available SATA standard?
Up to 150 MBps
This standard was quickly followed by revisions that increased speeds.
What do Molex connectors typically connect to?
Power supply unit (PSU)
Molex connectors are used for legacy components and have 4 pins.
What are the color codes for the DC voltage in a Molex connector?
- Red (5 VDC)
- Yellow (12 VDC)
- Black (ground)
The color coding helps identify the voltage supplied by the pins.
What is the purpose of eSATA?
Attachment of peripheral drives
eSATA uses a specific cable type and cannot be connected with internal SATA cables.
True or False: USB-C ports and connectors are compatible with Apple Lightning connectors and ports.
False
USB-C and Lightning are different standards and are not directly compatible.
What is the nominal data rate of a USB port supporting Gen 3.2 2x1?
Not specified in the content
This information would typically be found in detailed USB specifications.
What is a common usage scenario for a Molex connector?
Connecting legacy components to a power supply
Some devices might have both SATA and Molex power connectors.
What type of interface is used when connecting a single port on a graphics card to two monitors?
Not specified in the content
The question implies the use of a specific multi-monitor interface.
