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Unformatted text preview: four signal lines, serial ATA uses an inexpensive high-speed cable that permits reading and writing data in both directions simultaneously.
FireWire FireWire is a high-speed external bus standard supporting data transfer speeds up to
800 MByte per second. A large number of devices can be attached to a single FireWire bus, and
data can be delivered at a guaranteed rate (isochronous data transfer).
Serial Port An RS-232 serial interface sends binary bits one at a time, more slowly than parallel and USB ports, but with the ability to send over larger distances. The highest data transfer
rate is 19,200 bits per second. Laboratory acquisition devices often use serial interfaces, as do For More BS-IT Books, Notes & Assignments visit: www.bsit.zxq.net 52 Chapter 2 • x86
Downloaded From: www.bsit.zxq.net Processor Architecture telephone modems. The 16550 UART (Universal Asynchronous Receiver Transmitter) chip controls serial data transfer.
Bluetooth Bluetooth is a wireless communication protocol for exchanging small amounts of
data over short distances. It is commonly used with mobile devices such as cell phones and
PDAs. It features low power consumption and can be implemented using low-cost microchips.
Wi-Fi Wi-Fi, sometimes known as wireless Ethernet, describes a certiﬁcation asserting that a
device can send data wirelessly to another Wi-Fi enabled device. Wi-Fi is based on industry-standard
IEEE 802.11 standards. Wi-Fi devices operate at a greater speed and capacity than Bluetooth. Wi-Fi
devices often communicate with each other when in range of a wireless network. For example, a
wireless network can be established by a network router that has Wi-Fi capabilities. Most laptop computers sold today have built-in Wi-Fi capabilities.
2.4.5 Section Review
1. Describe SRAM and its most common use.
2. Describe VRAM.
3. List at least two features found in the Intel P965 Express chipset.
4. Name four types of RAM mentioned in this chapter.
5. Which type of RAM is used for Level 2 cache memory?
6. What advantages does a USB device o...
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This note was uploaded on 11/29/2013 for the course CSE 451 taught by Professor Hussein during the Winter '13 term at Fatih Üniversitesi.
- Winter '13