User:Kublai/temp
Number system[edit]
- floating point
- overflow and under flow and carry
Non mumeric data[edit]
- ASCII vs EBCDIC(by IBM and collapsed)
- BIG5
- unicode
- JPG, MPG,MP3 (mere)
Modern Computer Architecture[edit]
- Stack architecture(data structure : stack/one address/operand machine instruction, push , pop, aero address/operand machine instruction)
- pipeline and pipelining(*)
- superscaler machine (two ALU,)
- RISC(UNIX, many registers, less addressing mode, small instruction set) and CISC (80x86,less registers, many addressing modes)
- compiler compiler complxity,
- parallel processing
Past paper[edit]
- 2001 I 7(parallel processing)
- 2003 I 5
- 2004 I 10
==[edit]
Data transmission[edit]
- serial : COM port : bit by bit
- parallel : LPT/VGA : word by word
- synchronous (CPU -> memory) common clock
- asynchornous(through MODEM) , start bit, stop bit , no common clock
- simplex, duplex and half duplex
- multiplexing :
- transmission error checking
- parity check
- parity check
- CRC check, hamming code,etc.
I/O programming[edit]
- DMA Dircect Memory
CPU network card Pooling : CPU ask each device for service one by one Interrput : devices send NIRT(interrupt request) signal to CPU in order to be served