Compare and Contrast Desktop and Laptop Expansion Capabilities

Expansion capabilities add functionality to a computer. Many expansion devices can be used with both laptops and desktops:

■ External drives

■ Network cards

■ Wireless adapters

■ Printers

■ Other peripherals

Expansion devices are attached to laptops and desktops differently. A desktop attaches these devices with USB ports and parallel ports. A laptop attaches these devices with USB ports, parallel ports, and PC Cards.

The standardized use of USB and FireWire ports makes it possible to connect many types of external components to laptops, docking stations, port replicators, and desktops. The USB and FireWire standards make it possible to connect and remove external components without the need to power off the system. USB and FireWire ports are used to connect a range of external components:

■ Printers

■ Floppy disk drives

■ Keyboards

■ Optical drives

■ MP3 players

Laptops and desktops have similar expansion capabilities. The difference in form factor between the computers determines which type of expansion device is used. Desktops have internal bays that support 5.25-inch and 3.5-inch drives. Additionally, there is space to install other permanent expansion drives. Laptops have limited space, so the expansion bays on laptops are designed to allow different types of drives to fit into the same bay. Drives are hot swappable and are inserted or removed as needed.

Table 6-2 shows a comparison of desktop and laptop expansion components.

Table 6-2 Laptop and Desktop Expansion Components

Laptops

Desktops

External

External

Ports

Ports

(USB,

(USB,

Parallel,

Parallel,

Video,

Video,

FireWire,

Adapter

FireWire,

Component

PC Card

Integrated

Serial)

Integrated Card

Serial)

External

X

X

monitor

Printer

X

X

Keyboard

X

X

X

Mouse

X

X

External

X

X

drives

Ethernet

X

X

X

XX

X

NIC

continues

Table 6-2

Laptop and Desktop Expansion Components continued

Laptops

Desktops

External

External

Ports

Ports

(USB,

(USB,

Parallel,

Parallel,

Video,

Video,

FireWire,

Adapter

FireWire,

Component

PC Card Integrated

Serial)

Integrated Card

Serial)

Wireless

X X

X

XX

X

NIC

CD/DVD

X

X

drives

Drive

X

XX

controllers

Laptops use the PC Card slot to add functionality. The PC Card slot uses an open standard interface to connect to peripheral devices using the CardBus standard. Examples of devices that connect using PC Cards include the following:

■ Hard drives

■ Network cards

PC Cards follow the PCMCIA standard. They come in three types: Type I, Type II, and Type III. Each type of PC Card is different in size and can attach to different devices. A newer type of PC Card is called the PC ExpressCard.

Table 6-3 shows a comparison of PC Cards.

Table 6-3 PC Card Specifications

PC Bus

Size (mm)

Thickness (mm)

Interface

Examples

Type I

85.6 x 54

3.3

Memory, I/O, CardBus

SRAM flash

Type II

85.6 x 54

5.5

Memory, I/O, CardBus

Modem LAN wireless

Type III

85.6 x 54

10.5

Memory, I/O, CardBus

Hard drive

Table 6-4 compares PC ExpressCards.

Table 6-4 PC ExpressCard Specifications

Readers' Questions

  • aatifa luwam
    What is the difference between desktop and personal computer?
    13 hours ago
  • Rosamunda
    Which type of interface is typically used for internal wireless networking cards in laptops?
    17 days ago
  • IEEE 802.11 is typically used for internal wireless networking cards in laptops.
    • maria pia milano
      Which of the following is true about expansion cards in a notebook computer?
      2 months ago
    • Expansion cards in a notebook computer can provide additional features and capabilities, such as enhanced graphics, additional storage, extra networking capabilities, and more.
      • william blackwell
        What type of bus is used by expresscard slots?
        2 months ago
      • Expresscard slots use a PCI Express (PCIe) bus.
        • heidi
          Which of the following are characteristics of the expresscard /54 form factor?
          2 months ago
          1. Compact size- Expresscard /54 is a compact form factor only measuring 54mm in size
          2. High data transfer speeds- Expresscard /54 supports data speeds up to 5 Gbps
          3. Hot plug support- Expresscard /54 is hot pluggable, allowing it to be added or removed from a device without having to shut down the system
          4. USB connectivity- Expresscard /54 features USB expansion capabilities, allowing external USB devices to be connected to the host device
          5. Ease of use- Expresscard /54 is plug and play, making it easy to use and install in compatible systems.
          • Kris
            Which two types of buses may be used by expresscard slots?
            2 months ago
            1. PCMCIA (Personal Computer Memory Card International Association) buses
            2. CardBus buses
            • ren pfaff
              What is the primary difference between a laptop and desktop computer?
              2 months ago
            • The primary difference between a laptop and desktop computer is the form factor. Laptops are designed to be easily portable, while desktop computers are typically larger and are designed to remain in one place. Laptops also typically have fewer ports and slower processors than desktop computers.
              • marcel
                What is an example of an expansion slot on a laptop?
                2 months ago
              • An example of an expansion slot on a laptop would be a PC Card or ExpressCard slot. This type of slot allows for the addition of various peripheral components and expansion cards, such as a wireless card, memory expansion card, or TV tuner card.
                • Reino Pulkkinen
                  What are the similarities and difference between a laptop and a desktop expansion components?
                  1 year ago
                • ivo
                  Does laptos have expansion slots like desktop?
                  1 year ago
                • No, laptops usually do not have expansion slots like desktops.
                  • senait
                    Why do Laptops exist when they inferior to desktops as far as component expansion?
                    1 year ago
                  • Laptops exist because they are more compact and portable compared to desktops, making them ideal for users who require the ability to work from any location. Additionally, laptops offer the same component expansion capabilities as desktops, but in a more limited manner. For example, most laptops have one expansion slot for additional RAM and one port for an external hard drive.
                    • sakari
                      How do expansion techniques differ between notebook and desktop computer?
                      1 year ago
                    • Expansion techniques for notebooks typically involve adding accessories such as external hard drives, USB ports, and wireless cards, while desktop computers have more traditional expansion techniques such as adding additional internal components such as RAM, hard drives, and graphics cards.
                      • rosa
                        What computer has the best expansion capabilities?
                        1 year ago
                      • The Apple Mac Pro has the best expansion capabilities due to its wide range of internal components, plus its accessible and customisable expansion bays. The Mac Pro can be upgraded with up to 1.5TB of RAM and 8TB of internal storage, plus its eight PCIe slots allow for the addition of even more powerful components.
                        • hiwet
                          What is compare and contrast desktop and expansion capabilities?
                          1 year ago
                        • Compare: Desktop and expansion capabilities are both physical components of a computer system. Contrast: Desktop components are typically more permanent, while expansion capabilities can be more modular and easier to upgrade. Desktop components tend to vary more in performance and cost, while expansion capabilities generally focus on increasing the capability of the computer system. Expansion capabilities usually provide more specialized functions, while desktop components are more geared towards general operations.

                          Express Bus

                          Size (mm)

                          Thickness (mm)

                          Interface

                          Examples

                          Express Card/34

                          75 x 34

                          5

                          PCI Express or USB 2.0

                          FireWire, TV tuner, wireless NIC

                          Express Card/54

                          75 x 54

                          5

                          PCI Express or USB 2.0

                          Smart Card reader, Compact Flash reader, 1.8-inch disk drive

                          The PC ExpressCard has 34-pin and 54-pin configurations. Figure 6-13 shows an example of a PC Card and PC ExpressCards.

                          Figure 6-13 Laptop Expansion Cards

                          Figure 6-13 Laptop Expansion Cards

                          PC-Card

                          PC-Card

                          PC ExpressCard/54

                          PC ExpressCard/54

                          |^-54 mm-H PC ExpressCard/34

                          Worksheet 6.3.4: Answer Laptop Expansion Questions

                          Fill in the table and short answer questions on laptop expansion specifications. Refer to the worksheet in IT Essentials: PC Hardware and Software Labs and Study Guide, Third Edition (ISBN 1-58713-198-6). You can perform this worksheet now or wait until the end of the chapter.

                          Continue reading here: Explain How to Configure Laptops

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