Editing 1678: Recent Searches

{{comic
| number    = 1678
| date      = May 9, 2016
| title     = Recent Searches
| image     = recent_searches.png
| titletext = autoexec code posted by verified twitter users
}}

==Explanation==
People often find answers to computer problems by searching on {{w|Google}}, which attempts to guess your intended search term based on your location, language and the characters you've already typed, placing its suggestions in a drop-down box beneath the input area. If the search box is clicked on but nothing is typed, the drop-down box by default shows a list of your most recent searches.

Here we see a list of search queries, each of which suggests the author is perversely misusing or overextending some computer technology. The overall impression is of someone technically sophisticated enough to shoot themselves in the foot, and who does not learn any larger lessons despite doing so repeatedly. The title text is another possible entry in this list.

The caption implies that from Randall's perspective, every computer he uses seems to be broken; he doesn't seem to realize this is because he's the one using them, not because the computers actually start off broken. (For similar themes see also these comics: [[349: Success]], [[1084: Server Problem]], [[1316: Inexplicable]] and [[1586: Keyboard Problems]]).

([[979|Dear people from the future]], if Google directed you here because it is the most popular result for a problem you are experiencing, this is not the page you were looking for). 

===List of searches===
; [https://www.google.com/search?q=Google+translate+syntax+highlighting Google translate syntax highlighting]
: {{w|Syntax highlighting}} can be used when editing {{w|source code}} to make the code more readable and easier to understand. It is not generally used for natural languages, but {{w|sentence diagram}}s of brief passages are used in language education.  {{w|Google Translate}} is used to translate text from one {{w|natural language}} to another. It uses {{w|JavaScript}} <tt>mouseover()</tt> to highlight words as an aid in matching phrases in the source with their translations, but does not apply different highlighting dependent on syntax.
:Alternatively, this could imply that Randall is attempting to translate code from one programming language to another using Google Translate. Success would be unlikely, since the service is not intended for this,{{Citation needed}} and syntactically valid output might further break the computer executing it.
:Two other possible interpretations of this phrase are that Randall wants to translate the phrase "syntax highlighting" to another language, or that he wants to perform syntax highlighting on the source code for Google Translate.
; Autodetect mixed bash zsh
: {{w|Bash (Unix shell)|Bash}} and {{w|Z_shell|Zsh}} are two {{w|Command-line_interface|command line interfaces}} for {{w|Unix-like}} OSes. The way to execute commands is almost identical, making detecting a script that contains a mixed syntax nearly impossible. This was later referenced in [[2510: Modern Tools]].
; CPU temperature sensor limits
: The CPU's temperature sensors exist to tell you when your CPU is becoming dangerously overheated (normally because of a faulty fan or overclocking). Someone who searches for information about the limits of those sensors is presumably expecting to misuse their CPU.  Probably also a reference to [[1172: Workflow]].
; GIF to XLS
: .GIF (Graphic Interchange Format) is a file extension used to store images and sequences of images to be displayed as an animation. .XLS is the file extension for Microsoft Excel spreadsheets. The joke is that the two file types are used for different purposes - it's quite normal for someone to want to convert between .GIF, .JPG, .PNG, .BMP files, as these are all image files; or between .XLS, .CSV, and .ODS files, as these all record tabulated information. However, for some reason Randall wants to convert an image file to a spreadsheet. (This is actually possible, because a digital image is essentially an array of color and brightness values; it just wouldn't be particularly useful for most people. [http://www.think-maths.co.uk/spreadsheet Here] is a webpage with an online converter.) Matt Parker has done a [https://www.youtube.com/watch?v=UBX2QQHlQ_I stand up routine] about converting these two file types.
:An alternate way to convert an image file, such as a .GIF file, into a text-based file like an .XLS file, is through {{w|optical character recognition}} (OCR). This is only effective if the image is a copy (i.e. a scan or reasonably clear photograph) of a document containing letters and words, and neither .GIF nor .XLS are file formats anyone would usually use in that case.
; Clock speed jumper sample rate
: A jumper is an intentional short circuit used for selecting options for an electronic circuit. They are usually used where it is not feasible to use programming (such as outputting a byte or word through a port) to alter the selection, such as before the processor even begins executing. A common example would be, on some motherboards, jumpers can be used to alter the clock speeds of various motherboard functions (such as the CPU or the front side bus). These jumpers should ordinarily be modified when the computer is off. However, this search is asking how often the motherboard checks the status of the clock speed jumpers, implying that they intend to change these jumpers while the computer is powered on, and often enough that the sample rate matters (change CPU speed several times a second, by moving jumpers on the motherboard.). This would likely make the computer crash, or worse, cause physical damage to its components.
; [https://www.google.com/search?q=clean+reinstall+keybinding Clean reinstall keybinding]
: This refers to keybinding, the practice of mapping (binding) a certain key to a certain function (e.g., pressing PRTSC will take a screenshot). Most keyboards do not output characters directly, but only codes for which keys have been pressed (or released).  Keybindings translate the pressing of the "A" key on your keyboard into the letter "A" being sent to a program which is reading keyboard input. A "clean reinstall" of keybindings is something that would almost never be necessary - it means Randall has modified his default keybindings to such an extent that his [[1031:_s/keyboard/leopard/|leopard]] has become unusable (similar to [[1284: Improved Keyboard]]), necessitating a "clean reinstall" of the bindings. Alternatively, he might be doing clean reinstalls so often that he wants a keybinding to execute them with minimal loss of time.
; Cron job to update crontab
: {{w|Cron}} is a utility on most Unix-like OSes that allows you to schedule commands or scripts to be run periodically. These scheduled jobs are read from a ''crontab'' file. A job that updates the crontab (therefore creating new jobs, removing old ones or editing existing ones) is paramount to a {{w|job scheduler}}, and trying to use cron for such functionality could result in highly unstable functionality (although a crontab could be sensibly regenerated periodically by a set of machines from a master crontab file annotated with per-host directives). This is similar to {{w|self-modifying code}}.
; [https://www.google.com/search?q=fsck+chrome+extension fsck Chrome extension]
: This is a search for an interface to the Unix '''f'''ile'''s'''ystem che'''ck'''er {{w|fsck}} via third-party software added to Chrome. fsck is a program for checking your filesystem for corruption. Repairing a filesystem this way would be inadvisable.{{Citation needed}} This might indicate confusion about the meaning of the term "online filesystem repair", in which "online" means "while the filesystem is in use" rather than "over the Internet". Alternatively, Randall might want to repair an installation of the operating system Chromium, in a manner less drastic than the {{w|factory reset}} preferred by Google.
; Recursive font
: An idiosyncratic mix of {{w|recursion}} and the font style ''{{w|cursive}}'', referring especially to text handwritten in a flowing manner. {{w|PostScript}} (the language in which {{w|PostScript fonts|some fonts}} are written) is capable of recursion and PostScript Type 3 fonts are able to use the full language. This could create effects like fonts with complicated fractal borders and fill patterns - but the increase in processing time would contribute to seeming brokenness of the computer (or printer) rendering the font.
:A true recursive font would be a form of {{w|fractal}}s ([http://blog.matthen.com/post/5340546486/first-sketches-in-mathematica-for-a-new-font-it example]).
; Regex matching valid EBNF
: EBNF refers to {{w|Extended Backus–Naur Form}}, which is used to define {{w|formal language}}s. EBNF specifies recursive patterns that are impossible for a {{w|Regular_Expression|regular expression}} (regex) to determine whether it is valid or not. There is some irony in using regex to test the validity of something which ''defines'' the validity of things like regex.
; [https://www.google.com/search?q=Hardlinks+Turing+complete Hardlinks Turing complete]
: In some file systems, for example {{w|ext4}} and {{w|NTFS}}, a single file may be referenced in multiple places in the file system. These filenames are termed "hard links" because the operating system automatically resolves them to the actual file. "Soft" or "symbolic" links are resolved indirectly via a pathname, which may reside anywhere.  A file is considered deleted when the last hard link to it is unlinked; a soft link exists independently of its target.  In fact, the target need not exist, in which case this is often called a dangling symbolic link.
:{{w|Turing completeness}} is the {{w|computational complexity}} required to simulate any {{w|computable function}} (given an infinite amount of memory). Recently there have been cases where [http://beza1e1.tuxen.de/articles/accidentally_turing_complete.html unexpected mechanisms] from card games to text parsers were proved to be Turing complete. Hardlinks being Turing complete would imply that creating and deleting hardlinks alone is enough to satisfy the requirements of Turing completeness.
; Opposite of safe mode
: {{w|Safe mode}} is a diagnostic mode in many operating systems and applications which allows the user to troubleshoot problems by disabling unnecessary functionality. The "opposite of safe mode" implies a "dangerous mode" where the purpose is to allow uselessly dangerous actions (in actuality this supposed dangerous mode is the default mode). A common example is the {{w|sudo}} command in Unix-like OSes, which grants the user system-level permissions.
:It's also possible that Randall sees Safe Mode so often that he sees regular mode as an unusual and unique state and needs help navigating back to it.
; Predictive touchpad
: {{w|Predictive text}} is a feature of many smartphone keyboards that predicts the most likely word the user wishes to type, and then gives the user the option to place the full word in the sentence immediately without having to finish typing it. A {{w|touchpad}} is a computer pointing device, similar to a {{w|computer mouse}}. The idea of a "predictive touchpad" seems absurd because, as opposed to typed words, there are not a limited number of swipe combinations that are possible on a touchpad. A "predictive touchpad" implies that a computer could predict where the user was going to move the mouse or click, which in this case would seem to defeat the purpose of a user input device.{{Citation needed}}
:Interestingly, a version of Linux had a predictive cursor option, where the cursor jumped to the nearest button (like window close) when it moved near to but didn't quite reach that button.
; Google docs from bootloader
: A {{w|bootloader}} is a very small program that is usually the very first thing to execute when a computer boots up. It is used mainly for loading the operating system into memory.  Such a program by itself would not be capable of directly running something as complex as {{w|Google Docs}}. Probably also a reference to [[1912: Thermostat]].
; Hardware acceleration red channel only
: {{w|Hardware acceleration}} means that certain calculations are not performed by the computer's {{w|CPU}} but by a "specialized" processor, e.g. a {{w|GPU}} which is part of the graphics adapter. This speeds up output, especially if complex 3D calculations are required, and reduces CPU load. To use this function only on a single color channel seems pretty useless, but one may want to troubleshoot a program that displays only red when hardware acceleration is enabled.
:While graphics cards are most commonly used with three or four channels (red, green, blue, and sometimes alpha), they do support two-channel or single-channel images. An 8-bit single-channel image would use the format '[https://www.opengl.org/wiki/Image_Load_Store#Format_qualifiers R8]', which is indeed 'red channel only'. This type of image could be used to store monochrome images or non-image data.
; autoexec code posted by verified twitter users. ('''Title text''')
: The term "autoexec" refers to code that runs automatically, usually during boot, and derives from one of three boot-time files for {{w|MS-DOS}}: AUTOEXEC.BAT, CONFIG.SYS and COMMAND.COM.  AUTOEXEC.BAT would typically contain commands for customizing the command prompt, loading additional drivers, and/or automatically launching a program.
:Automatically executing code from the Internet is generally a terrible idea, because it could be written by someone with malicious intent and harm your computer. The joke here is that the code would only be executed if written by someone who has been "verified" on Twitter. Twitter's verification service (at the time the comic was made) only serves to show that a user is who they claim to be, not whether anything they say (or program) can be trusted, so this would provide little protection. Usually, Twitter verification is used by celebrities so they can be distinguished from people claiming to be them. The line implies that Randall is only interested in running code posted by celebrities.
:Most code downloaded from authentic sources (such as Microsoft and official Linux distributions) is verified by a cryptographic signature from a true trusted source, authenticating the origin of the software. These may include software updates that run automatically in the background.  The joke here is that the term "verified" means very different things between Twitter users and software distribution.
:Additional hilarity was added to this by circumstances in 2022 when, after [[Elon Musk]]'s takeover of the site, anyone could buy a visually identical verification symbol for $8. With a number of notable spoof/fake accounts being 'verified', it was potentially an even worse idea than it was in the first place — not that all genuinely verified users could be trusted to be unimpeachable in this regard.

==Transcript==
:[Colored and styled as the real logo:]
:GOOGLE

:[Google Search bar, with a drop down box with faded text, implying recent searches.]
:Google translate syntax highlighting
:Autodetect mixed bash zsh
:CPU temperature sensor limits
:GIF to XLS
:Clock speed jumper sample rate
:Clean reinstall keybinding
:Cron job to update crontab
:fsck Chrome extension
:Recursive font
:Regex matching valid EBNF
:Hardlinks Turing complete
:Opposite of safe mode
:Predictive touchpad
:Google docs from bootloader
:Hardware acceleration red channel only

:[Caption below the frame:]
:'''I have no idea why my computers are always broken.'''

{{comic discussion}}
[[Category:Comics with color]]
[[Category:Google Search]]