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What to look for in a new computer Presenter: Mary Burns Desktop vs - - PowerPoint PPT Presentation
What to look for in a new computer Presenter: Mary Burns Desktop vs - - PowerPoint PPT Presentation
What to look for in a new computer Presenter: Mary Burns Desktop vs Laptop Examples: Desktop, Laptop, Chromebook MORE>>>>>>> Examples: All in one and Two in one Operating system Price range $ spent depends on computer
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Examples: Desktop, Laptop, Chromebook
MORE>>>>>>>
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Examples: All in one and Two in one
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Operating system
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Price range
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$ spent depends on computer specs
- Basic: Email/searching web/ basic tasks
- Moderate: Editing photos, creating
publications
- Extreme: Gaming and virtual reality
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Processor
- AKA CPU
- Determines applications you can
run and how fast
- Also determines how many
programs you can use at one time
- Intel and AMD most common
- Intel: Core i3 (most basic), i5
(mid range), i7 (higher end)
- AMD: A Series Elite
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Processor speed
- Measured in GHz
- How fast CPU can process information
- Higher the speed, faster
Processor Speed
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Memory: RAM
- RAM: Random access memory, temporary storage
- 4 GB minimum up to 32 GB (or more)
- Look for model that lets you expand RAM
- Not all RAM is equal! High end computer should have DDR4 RAM.
If there is no description of RAM, it is probably not a high end.
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Graphics
- Video card (or graphics
card) takes data and displays it on the monitor.
- Not as important unless
you are film editing, heavy gaming or using 3D technology
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Video Outputs
- 3 options: VGA (older), DVI
(digital) and HDMI
- A new desktop tower may
use one output, while your
- ld monitor may use
- another. But you can buy
an adapter!
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Hard Drive
- Storage of all files and folders on device
- Size matters (minimum 500 GB laptops to over 1 TB
desktops)
- Speed matters (for boot up speed, installing
programs and scanning for viruses) 7200 rpm for desktop , 5400 rpm for desktop
- Solid-state drives are found in higher quality devices
and many laptops. Faster, quieter and longer
- lifespan. But more expansive and smaller data
capacities.
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Where is my DVD drive?
- AKA Optical drive
- Many laptops no longer come with
CD or DVD drive (Most data can be downloaded
- Still on most desktops though
- You can purchase external one if you
need one
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Monitor
- Screens measured diagonally
- Typically 15 to 24 inches
- Most wide screen
- Two types: LCD (require backlight) or LED (lighting provided by LED
lights on the monitor, which is thinner and lighter)
- LED provides richer and better production of dark colors and black
and can last longer. Not a big deal with normal users.
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Sound system
- Desktop: Speakers optional
- Laptop: Sound system embedded
- You can purchase speakers for either
- You can also stream sound from your device to
your high end television and stereo system (another lesson!)
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Ports
- USB: Can range from USB 2, 3
and now C.
- Ethernet cable (desktops, not all
laptops), network card
- Monitor: VGA and DVI, HDMI
(not shown)
- PS/2 keyboard and mouse (may
be USB)
- Sound in and out
- Media card (not shown)
- Firewire or IEEE 1394 (Apple
devices, not shown)
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Should I buy refurbished?
- Usually certified and tested
- Look for warrantee and return policy
- Purchase through reputable companies
NEW MacBook REFURBISHED MacBook
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Brands
- Acer (laptops, range of prices, Chromebook)
- Apple (cost more, good safety and reliability)
- Asus (gaming and everyday)
- Dell (mass –market, XPS gaming, Chromebook)
- Google (only one, Chromebook Pixel)
- HP: Number 1 seller of laptops and desktops
- Lenovo: Such as Ideapad
- Microsoft (only 1, Surface PC)
- Samsung (variety of laptops)
- Toshiba (variety of laptops, Chromebook)
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Example: Midrange Desktop (i5, 8GB RAM with 20” Monitor)
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Example: Midrange laptop (i5, 8 GB RAM, touch screen, solid state drive)
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Example midrange Apple MacBook (m3 processor, 8GB, SSD)
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