Hardware Choices Flashcards
Deciding on a device (4)
Types of the device
Speeds
Capacities
Costs
Moor’s Law
Number of transistors on a chip will double every two years
=Computing power will double every two years, for the same price
Consider purpose
Entry Level
Mid Level
Power Level
Mobile Use
Device options (6)
Desktops
Laptop
Tablet PC
Tablets
Ultra-books
Netbooks
Intel Platform
IBM - Compatible
Windows based computer
Other operating systems eg:Linux
Macintosh Platform
Supports only Apple iOS operating system
Used in specifit industries due to high costs
CPU
Father processor = manipulates more data
Always compare click speeds and number of cores available
Intel Core CPUs
Atom–> Celeron –> Pentium –> i3 –> i5 –> i7 –> i9
RAM
More RAM means more loading capacity while processing other tasks
Working speed of computer is also determined by CPU and hard drive speed
Maximum amount of RAM determined by operating system version (32-64) and motherboard
Storage
Check storage capaticy
Check transfer speed of data
Magnetic hard drive, optical hard drive, solid state hard drive
Connectivity
Desktops may have Ethernet port but need a modem card for wifi connections
Check connection speed
Slower speeds make computer seem slow when dealing with transmitted data
Display
Built in video capacity usually limited
To achieve high performing graphics, a graphics card with is own RAM is required
Peripheral Devices (3)
Standard I/O devices
Specialised devices
Smartphone devices
When choosing what to buy
Collect data to make an informed decision
Read options and reviews from catalogue, websites, magazines, etc.
Avoid manufacturer websites, choose more independent reviews (PCMag, TechRadar)
Review suplier and system
Have idea of pricing across different stores
Compare same features (RAM, CPU, Hard Drive)
Be aware of your technical needs and intents of use
Other aspects when choosing what to buy
Warranty length and terms
Available services in the area
After sales service and support
Keep all paperwork
