Showing posts with label device. Show all posts
Showing posts with label device. Show all posts

Tuesday, March 14, 2017

Important input device by Sofi Rahmatulloh

Important input device by Sofi Rahmatulloh


Everyone knows, there many input device, but most of them maybe dont know the input device that I want to share now.
Now I want to share about Mouse, Scanner..

Let start with Mouse.

Mouse
Generally we know that most is used to operate computer. It is a kind of input device as a pointing device on your monitor. Its firstly made at 1984. The first company that made it, named Xerox.
At that time mouse form is not as good as now.

At the first time mouse being introduced, mouse get big attention from public society.
Because the price of mouse is cheap. And need a few place to operate it.

But, at that time, mouse emersion doesnt get a successful goal.
Because the minimum Operating System that support to use mouse.
Mouse, gets success at the time Windows 3.1 appear.

Mouse can work, by detecting the moving of humans hand.
As a pointing device, then appear pointing device like : light pen, joystick, graphic tablet.

Inside a mouse | Sofi Rahmatulloh

Scanner
A Scanner is a device as image/picture acquisition. To sanning image or photo.
In the principal, a sanner convert analog picture to digital picture.
Where, analog picture is a picture that can be touched by our hand.
And digital picure, is a picture inside the computer.

The main component of a scanner is CCD Array.
CCD array contains some light sensitive diode.
This component work as light sensor.
CCD array | Sofi Rahmatulloh

CCD array is inside a head scan component.
This head is a component that moved by motor.
Inside a head is contains source of light.
Inside head, contains source of light, mirror and lens to focus light to CCD array.
Inside head | Sofi Rahmatulloh

Scanner quality.
Scanner quality depend on resolution (DPI (Dot Per Inchi)).
Example :
  • If a scanner has resolution 300 x 300 dpi, also can do scanning with size letter 8.5 x 11 inc.
  • So, it will need 2550 CCD sensor.
  • If color scanner need 3 x grayscale scanner.
This topic ( Important input device by Sofi Rahmatulloh ) to continued in my next post. (^_^)


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Monday, December 19, 2016

Install Windows 7 Gagal Load Driver A Required CD DVD Drive Device Driver Is Missing

Install Windows 7 Gagal Load Driver A Required CD DVD Drive Device Driver Is Missing


A Required CD/DVD Drive Device Driver Is Missing
    anda mungkin sudah pernah mengalami ketika instal windows pada saat proses  Instalansi windows tiba tiba muncul jendela dengan tulisan "load driver"A Required CD/DVD Drive Device Driver Is Missing,yang artinya pada proses  Install Windows Gagal menemukan driver yang diperlukan dalam proses instalasi  atau windows meminta driver lebih dulu.disini kita akan membahas beberapa faktor penyebab dan solusi dari permasalahan windows  [A Required CD/DVD Drive Device Driver Is Missing

Berikut beberapa faktor penyebab dan solusi dari install windows 7 (Load Driver, A Required CD/DVD Drive Device Driver Is Missing) :
    1. Yang pertama Pengaturan pada bios,silahkan anda cek pengaturn pada bios anda dengan cara menekan tombol F1, F2, F10, tombol Delete (del) atau tombol Escape   (ESC) atau dengan tombol kombinasi Fn + F2. silahkan disesuaikan dengan merk laptop atau netbook anda. setelah anda berhasil masuk kedalam menu bios kemudian anda Klik Menu booting pilih boot device priority seting sesuai dengan device yang akan anda gunakan untuk instalasi windows anda (dari dvd/Usb flasdisk).langkah berikutnya klik menu advance pada bios Ubah driver dari SATA ke AHCI. atau Matikan menu SATA alihkan ke AHCI,kemudian anda save dan restart laptop anda. kemudian silahkan anda coba untuk memulai installasi windows lagi.
    2. Yang kedua faktor penyebab gagalnya instalasi windows 7 bisa disebabkan oleh rusaknya file instalasi windows yang anda gunakan.solusinya buat cd instalasi yang baru.
    3. Yang ketiga kurangnya catu daya listrik yang diperlukan oleh device installasi (DVD room,usb flash disk,hardisk eksternal,dvd eksternal)solusinya pindahkan device satu persatu misalnya jika anda menggunakan dvd room internal anda bisa mencoba instalasi menggunakan flasdisk,atau jika anda menggunakan flashdisk dan ternyata masih keluar peringatan (Load Driver, A Required CD/DVD Drive Device Driver Is Missing) pindahkan flashdisk ke port lainnya. 
    4. Yang keempat adalah kompabilitas port Usb dari laptop yang kita install, sekarang ini hampir rata rata laptop baru menggunakan slot usb 3.0 sementara flashdisk/usb eksternal yang kita gunakan biasanya hanya suport Usb 2.0 kebawah.solusi nya pindahkan port usb yang kita gunakan.
    5. yang kelima faktor penyebab gagalnya instalasi windows 7 dengan peringatan (Load Driver, A Required CD/DVD Drive Device Driver Is Missing) adalah laptop keluaran terbaru,solusinya bacalah manual book dari laptop tersebut apakah laptop yang kita install itu diperuntukan untuk  windows 7 jika tidak langkah pertama yang harus kita lakukan adalah mencari driver sata AHCI dari laptop tersebut.kemudian kemudian ekstrak file driver tersebut kedalam satu folder silahkan anda simpan folder tersebut dengan flasdisk yang lain. selanjutnya lakukan proses instalasi lagi dengan memasukan flashdisk yang berisi file driver yang sudah kita ekstrak tadi kedalam port usb yang masih kosong,untuk langkah langkah instalasinnya akan saya jelaskan dilain kesempatan
      dengan cara diatas mudah mudahan anda tidak menemui masalah lagi ketika Install Windows 7 Gagal, (Load Driver, A Required CD/DVD Drive Device Driver Is Missing).selamat mencoba


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    Tuesday, December 6, 2016

    Is your Android device laggy Here’s how to fix it!

    Is your Android device laggy Here’s how to fix it!


    It happens to everyone, no matter what kind of make or model of device you own: as time wears on, your device starts to slow down and lag. It may be because you’ve downloaded power hungry apps or it may be because your cache has filled up to the brim. Regardless, it’s annoying and while sometimes a quick reboot will temporarily solve the issue, we’re delving a little bit further into some of the mains causes and solutions to these issues.

    Clogged Memory

    When you start to reach the limit on the SD card on your device, should you have one, you’ll notice that your device starts to slow down. If you’re showing signs of lag on your device and you’re using at least 80% of your storage capacity on your SD card, it might be time to go through your storage and do some cleansing.


    With SD Cleaner, or a similar app,  it’ll log all the unnecessary files on your SD card that you can trash without any complications, mostly cached files and other miscellaneous files that will help clear up some space. However, always be careful when you’re deleting files and make sure you’re not deleting something important.

    Clear the cache


    Yeah, it seems super simple, but sometimes we forget that apps start to cache more and more data as time goes on. Thankfully, you can go through and delete the cache yourself manually by heading to Settings > Apps and selecting a particular app and then hitting the Clear Cache button. However, if you’ve got an abundance of apps, this will soon become really cumbersome and time consuming.


    If you’re looking for a quicker method, you can grab an app like App Cache Cleaner, which will do all the work for you with a few taps on your device. It’ll list all the apps that currently have cached data stored on your device and then you can pick and choose which ones you want to clear, or do it all in one fell swoop.


    Available link for download

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