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由 OldMen 於2年2個月前貼文
在標準狀況下： 電腦開機→BIOS→POST→軟碟啟動磁區→硬碟主啟動磁區(MBR)->Boot Sector->OS
源自：PCZONE 討論區
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由 OldMen 於2年7個月前貼文
RAID(Redundant Array of Independent Disks) is a technology that allowed users to achieve high levels of storage reliability from LowCost and less reliable PC-class DiskDrive components, via the technique of arranging the devices into arrays for redundancy.
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由 OldMen 於2年8個月前貼文
IPsec (IP security) is a standard for providing security to IP protocols via encryption and/or authentication, typically employing both. Its use in pfSense is for Virtual Private Networks (VPN's).
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由 OldMen 於2年8個月前貼文
Function Pointers are pointers which point to the address of a function. A running program gets a certain space in the main-memory. Both, the executable compiled program code and the used variables, are put inside this memory.
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由 OldMen 於2年10個月前貼文
The CRC (Cyclic Redundancy Checksum) algorithm is a highly optimised and powerful way of checking whether a large number of bytes have been modified or not.
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由 OldMen 於2年11個月前貼文
The SPI bus specifies four logic signals. * SCLK--Serial Clock (output from master) * MOSI/SIMO--Master Output, Slave Input (output from master) * MISO/SOMI--Master Input, Slave Output (output from slave) * SS--Slave Select (active low; output from master)
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由 OldMen 於2年11個月前貼文
Manchester code ensures frequent line voltage transitions, directly proportional to the clock rate. This helps clock recovery. It is, therefore, self-clocking, which means that a clock signal can be recovered from the encoded data.
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由 OldMen 於2年11個月前貼文
The following takes a look at transporting Manchester encoded data using RS232, over a radio frequency (RF) link. Manchester encoding is a synchronous clock encoding technique used to encode the clock and data of a synchronous bit stream.
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由 OldMen 於2年11個月前貼文
電路的編碼原理是利用開關按下時，用二極體將正電源送往編碼輸出端，產生邏輯「1」的信號，未接二極體者的輸出則因左側的電阻接地產生邏輯「0」的信號
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由 OldMen 於3年15天前貼文
UCC3941 DC-DC converter, Headphone amplifier, RS232 <-> TTL voltage converter, STK200/STK300 with long cable, Simple PIC programmer, USBasp PCB
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