Samsung GT-P7100 user manual Managing how apps use memory

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Managing how apps use memory

As described in“Opening and switching apps”on page 31, you typically don’t need to worry about managing apps beyond installing, opening, and using them. The operating system manages how they use memory and other resources automatically. But there are times when you may want to know more about how apps are using the memory and other resources in your tablet.

Apps use two kinds of memory in your tablet: storage memory and RAM. Apps use storage memory for themselves and any files, settings, and other data they use. They also use RAM (memory that is designed for temporary storage and fast access) when they are running.

All tablets have internal storage. The operating system manages and carefully guards the portion of internal storage where the system image, apps, and some kinds of files and other data for those apps are stored, because it can contain your private information; you can’t view its contents when you connect the tablet to a computer with a USB cable. The other portion of internal storage, where music, files you download in Browser or Google Mail, and so on, is visible when you connect the tablet to a computer (see“Connecting to networks and devices”on page 48).

The operating system also manages how apps use your tablet’s RAM. It only allows apps and their component processes and services to use RAM when they need it. It may cache processes that you’ve been using recently in RAM, so they restart more quickly when you open them again, but it will erase the cache if it needs the RAM for new activities.

Working with apps

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Contents GT-P7100 Read me first Using this manualTrademarks CopyrightContents Google Search Settings Welcome to Android Starting Android the first timeSetting your location preferences Activating your mobile data serviceSigning into your Google Account ››Resetting your Google Account password Backing up and restoring your data››Additional accounts Many kinds of data are backed up, including Finishing setupGetting to know Home Home and Android basicsUsing the touchscreen Return HomeView other Home screens Back Using the Navigation buttonsFinding your apps Waking the tabletOpen and work with the Apps screen Monitoring your tablet’s status ››Status icons››Notification icons Managing notifications Respond to a Notification Open the Notifications listOpen Status Details Status Details and Quick SettingsWork with Quick Settings Securing your tablet Secure your lock screen Encrypt your tablet Add an item to a Home screen Customizing Home screensMove a a Home screen item Change Home screen wallpaper Remove an item from the Home screenWorking with widgets Extend the life of your battery Optimizing battery lifeMonitor and control what uses the battery Check the battery charge levelWorking with apps Opening and switching appsSwitch to the previous app you were using Switch to a recently used appOpen the Apps screen Open an appManaging how apps use memory Open the Manage Applications screen Get details about an app Stop a misbehaving app Managing downloads Uninstall an appOpen Downloads and manage downloaded files Entering and editing text Using the onscreen keyboardEnter text by typing Entering and editing text Enter capital letters Enter numbers, symbols, and other charactersEntering text by speaking Change the input languageEnter text by speaking Entering and editing text Edit text Editing textSelect text Paste text Cut or copy textConnecting to mobile networks Connecting to networks and devicesDisable data when roaming Determine what network you’re usingLimit your data connection to slower networks Edit or create a new access pointConnecting to Wi-Fi networks Touch Wireless & networks → Wi-Fi settings Turn Wi-Fi on and connect to a Wi-Fi networkReceive notifications when open networks are in range Modify how you connect to a Wi-Fi networkAdd a Wi-Fi network Set a Wi-Fi disconnect policy Forget a Wi-Fi networkTurn Bluetooth on or off Connecting to Bluetooth devicesPair your tablet with a Bluetooth device Change your tablet’s Bluetooth nameConnect to a Bluetooth device Check Bluetooth to turn it on Configure the Bluetooth features you want to useConnecting to a Windows computer via USB Disconnect from a Bluetooth deviceUnpair a Bluetooth device Connecting to a Macintosh computer via USB Connect your tablet to a computer via USBTransfer files to or from a Macintosh computer Connecting to networks and devices Share your tablet’s data connection via USB Sharing your mobile data connectionShare your tablet’s data connection via Bluetooth Rename or secure your portable hotspot Touch Configure mobile AP Connecting to virtual private networks VPNsConnect to a VPN Add a VPNDisconnect from a VPN Edit a VPNDelete a VPN Working with secure certificates Install a secure certificate from your tablet’s USB storageConnecting to networks and devices Google Search Searching your tablet and the webSearch your tablet and the web by typing Google Search Manage your search privacy Change what you target when searching the tablet››Searchable items settings Changing Google Search settings››Google Search settings Voice Search and Voice Actions Searching the web by speakingSearch the web by speaking Using Voice Actions Changing Voice Search settings Adding and removing accounts AccountsTouch Add account Add an accountRemove an account Configuring account sync and display optionsConfigure general sync settings Sync information manually Change an account’s sync settingsAndroid apps BrowserCamera Calendar CalculatorClock Contacts Google Mail GalleryGoogle Talk Maps, Navigation, Places, and LatitudeMarket Movie Studio MusicYouTube Settings Opening SettingsOpen Settings ››Wireless & Network settings screen Wireless & networks settings››Advanced Wi-Fi settings screen ››Wi-Fi settings screen››Tethering and portable hotspot settings screen ››Bluetooth settings screen››Mobile networks settings screen ››VPN settings screenSound settings Location and security settings Screen settingsSettings ››Apps settings screen Apps settings››Development screen Accounts and sync settings ››Accounts and sync settings screen››Account screen Privacy settings Storage settings Language & input settings››Language & input screen ››Google Voice Recognition settings screen ››Text-to-Speech settings screen ››Android Keyboard settings screen ››Configure input methods screenTime and date settings Accessibility settings››About tablet screen About tabletEnglish EU /2011. Rev