Friday, 8 May 2015

Computer Systems

    Computer Software - A operating system also known as an OS is a piece of software that is needed to run programs on a computer or a mobile device. The programs that run on an operating system talk to the hardware. One type of system which uses a operating system, is Microsoft windows.


    Firewalls are a must have for any kind of computer usage that go online. They protect you from all kinds of abuse & unauthorized access. Firewalls are worth installing. Be it a basic standalone system, a home network or a office network.

    Antivirus software - If properly installed on a computer system, can prevent access to computer systems by unwanted computer programs. Viruses or worms can be used by criminals or mischievous people. They can be used to steal information or damage computer systems. If no antivirus software is installed, hackers may be able to access the information in the computer

    Malware protector - Malware, short for malicious software, is a kind of software that can be installed on a computer without approval from the computer's owner. There are different kinds of malware that can hurt computers, such as viruses and spyware. These programs can steal passwords, delete files, collect personal information, or even stop a computer from working at all. Computer security or anti-malware software is usually good at stopping malware from installing itself. When security software isn't installed, malware can get into the computer. Getting rid of malware can be difficult, even when using programs designed to remove it.

    Tablets

    Tablets are the way forward with technology in the modern age, as basically it's a small computer that can be carried anywhere the on i'm going to talk about is the Nexus 7, the Nexus seven is not he only tablet out their for example their is the ... 

    1. Ipad air 
    2. Hudl
    3. Amazon Fire HDX
    4. Sony
    5. Windows tablet
    Their as also many more but, as I said i'm going to talk about the Nexus 7. Here are some stats on it ...
    NETWORKTechnologyNo cellular connectivity
    LAUNCHAnnounced2012, June
    StatusAvailable. Released 2012, July
    BODYDimensions198.5 x 120 x 10.5 mm (7.81 x 4.72 x 0.41 in)
    Weight340 g (11.99 oz)
    SIMNo
    DISPLAYTypeLED-backlit IPS LCD capacitive touchscreen, 16M colors
    Size7.0 inches (~59.6% screen-to-body ratio)
    Resolution800 x 1280 pixels (~216 ppi pixel density)
    MultitouchYes, up to 10 fingers
    ProtectionCorning Gorilla Glass
    PLATFORMOSAndroid OS, v4.1 (Jelly Bean), upgradable to v4.4.2 (KitKat), planned upgrade to v5.0 (Lollipop)
    ChipsetNvidia Tegra 3
    CPUQuad-core 1.2 GHz Cortex-A9
    GPUULP GeForce
    MEMORYCard slotNo
    Internal8/16/32 GB, 1 GB RAM
    CAMERAPrimary1.2 MP, 1280 x 960 pixels
    FeaturesVideo-calling
    Video720p
    SecondaryNo
    SOUNDAlert typesVibration; MP3, WAV ringtones
    LoudspeakerYes, with stereo speakers
    3.5mm jackYes
    COMMSWLANWi-Fi 802.11 b/g/n
    Bluetoothv3.0
    GPSYes
    NFCYes
    RadioNo
    USBmicroUSB v2.0
    FEATURESSensorsAccelerometer, gyro, proximity, compass
    MessagingEmail, Push Email, IM
    BrowserHTML
    JavaNo
    - MP4/H.264 player
    - MP3/WAV/eAAC+/WMA player
    - Organizer
    - Photo/video editor
    - Document viewer
    - Voice memo
    - Predictive text input (Swype)
    BATTERYNon-removable Li-Ion 4325 mAh battery (16 Wh)
    Stand-by
    Talk timeUp to 10 h (multimedia)
    MISCColorsBlack
    SAR EU1.39 W/kg (body)    
    Price group
    TESTSDisplayContrast ratio: 908:1 (nominal)
    LoudspeakerVoice 68 dB / Noise 65 dB / Ring 75 dB
    Audio qualityNoise -69.8dB / Crosstalk -72.1 dB



      Copied from: http://www.gsmarena.com/asus_google_nexus_7-4850.php

    Graphic Designer Computer 
























































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