How to display Posts via the Category in laravel

This is my first laravel Application, and my first database based application so please be patient with me !! I will try to be specific!!

Categories Table: Id Name Timestamps

Posts table: Id title body slug Category_id timestamps

Lets say i have 4 catergories. Laptops, computers,phones,tablets

I want when i go to /computers to be able to get all the posts that are specific to that category.

Posts Model

Category Model

Category Controller:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Post;
use App\Category;

class CatController extends Controller
{
   public function getCategory($Category_id)
{
   $posts = Post::where('Category_id',$Category_id);
  return view('blog.index',['posts' => $posts]);
}

Route:

Route::get('computer/{Category_id}','CatController@getCategory');

I am really confused at the moment !! Thanks everyone in advance!!

via TasosTogr