Posts tagged Self Study

Down Call vs. Up Call

Down Call User code(unprivileged) enters to kernel with trap(interrupt). Up Call Kernel(privileged) enters to user code with IPC(Interprocess ...

Deprecated APIs

Deprecated As Android Versions keep being updated, many APIs and their methods are being revised. Even though those API’s methods get ...

Bandwidth and Frequency

Bandwidth (bps – bits per second) Amount of data that can be transmitted in per unit time. Difference between highest frequency and lowest ...

Latency vs. Jitter

Latency Amount of time it takes for a packet to travel from point A to point B(or round-trip). ex) Data Latency: time between a query and the ...

vi Find & Replace

Range [%] All lines in the file. [1,30] line 1 to 30 [5,$] line 5 to last line Pattern This can be plain text and also regular expression. ...