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COMMAND. ACTION. CTRL + End. Scroll to the bottom. CTRL + Home. Scroll to the top. CTRL + A. Select all of the text in the line you’re on. Page Down. Move the cursor down a page
fn + up/down arrow keys. Scroll up or down one page. fn + left/right arrow keys. Scroll to the beginning or end of a document. Delete key. Delete the previous character. Option + delete. Delete ...
Most keyboard shortcuts require the user to press a single key or a sequence of keys one after the other. Other keyboard shortcuts require pressing and holding several keys simultaneously (indicated in the tables below by the + sign). Keyboard shortcuts may depend on the keyboard layout.
A function key is a key on a computer or terminal keyboard that can be programmed to cause the operating system or an application program to perform certain actions, a form of soft key. [1] On some keyboards/computers, function keys may have default actions, accessible on power-on. A 104-key US English keyboard layout with the function keys in ...
The keyboard itself was an intelligent device and had its own processor and 4 kilobytes of RAM for keeping a buffer of the sequence of keys that were being pressed, thus can communicate with the user if a fault is found by flashing its main LED in sequence:
The alt keys (there are two of them) are easy to find on any Windows device—there’s one on either side of the space bar. It’s easy to make any accent or symbol on a Windows keyboard once you ...
The time to read the first bit of memory from a DRAM without an active row is T RCD + CL. Row Precharge Time T RP: The minimum number of clock cycles required between issuing the precharge command and opening the next row. The time to read the first bit of memory from a DRAM with the wrong row open is T RP + T RCD + CL. Row Active Time T RAS
In a computer using virtual memory, accessing the location corresponding to a memory address may involve many levels. In computing, a memory address is a reference to a specific memory location in memory used by both software and hardware. [1] These addresses are fixed-length sequences of digits, typically displayed and handled as unsigned ...