Samsung Hainan-C, Service Manual

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11-8
11. References
Flash Memory
Since flash memory can be written or deleted electrically, you can delete data by blocks and
reprogram the memory. Flash memory can continue to store information in the absence of a power
source, can allow tens of thousands of reading and writing operations, and is expected as the next
generation external storage device that can replace the floppy disk and magnetic disks. It has the
simple structure of a ‘1 bit per element’ and provides more circuit density in a unit area than RAM.
Firmware
This is software that has been written to the ROM or PROM. Firmware is a combination of software
and hardware. It is generally used to improve performance by updating the data saved on the BIOS
or ROM on the main board.
DAC
Abbreviation for ‘Digital Analog Converter’. DAC converts a digital signal into analog.
WAN (Wide Area Network)
This stands for wide area network. A computer network that spans a wider area than does a local
area network (LAN).
Bluetooth
A global initiative set up in May 1998 by Ericsson (Sweden), IBM and Intel (U.S.) and Nokia
(Finland) to define a standard for cable-free connectivity between mobile phones, mobile PCs, PDAs
and other peripherals for easier use of devices at home and the office. Bluetooth uses short-range
radio links in the 2.4 GHz Instrumentation Scientific and Medical (ISM) band based on IEEE 802.11
specifications.
AGP (Accelerated Graphics Port)
A graphic interface specification developed by Intel. AGP is designed especially for the throughput
demands of 3-D graphics. Rather than using the PCI bus for graphics data, AGP introduces a
dedicated point-to-point channel so that the graphics controller can directly access the main memory.
While the PCI bus operates at 33MHz, AGP operates at 60
∼ 133MHz and provides a much higher
throughput for 3-D graphics.
ALU (Arithmetic-Logic Unit)
Abbreviation for ‘Arithmetic Logic Unit’. A part of the CPU. ALU carries out additions, subtractions,
multiplications and divisions, as well as logical operations within instructions.
AP (Access Point)
An access point is a connection that ties wireless communication devices into a network. The access
point operates independently and is usually connected to an Ethernet hub or server.
FAT (File Allocation Table)
FAT is a file allocation table used by the operating system to keep track of which clusters are
allocated to specific files and which are available for use.
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