Must know before buying a Laptop
By Ravindra Johari
Dec 18, 2016
1. Performance of the Laptop Processor : The Brain.
The Performance of the laptop depends on the processing power of the CPU. Besides others, the Processor Core Frequency, number of cores, number of threads, the cache size, the Input/Output frequency and the RAM size defines the Processing Power. The nanometer size has been shrinking and the processor generations usually gets upgraded with the need to
accommodate more functionality in a single IC with the same or a smaller package size. The fully loaded running applications contributes to a good amount of heat and noise generation and an optimal design takes care of dissipating the heat and maintaining the decibel noise levels to satisfactory levels. In analogy, Processor is the Brain, always ready to achieve it's limits with optimal design.
2. Laptop Battery : The Heart.
Faster Processor and Input/Output Ports are good and all this is achievable because of the Power Supply running in your laptop. There are multiple voltages that the chips inside the Laptop need and all these voltages are down converted from One DC Voltage coming from your charger or the battery. While the Charger down converts AC to a specific DC Voltage, the battery is the store house of current at a specific voltage. The higher the current rating in Ampere-Hour (mAH), the more current the battery can supply for a longer time. For example a 5 Volt 6000mah battery lasts longer than a 5V 4000mah battery with same application environment. This depends on the number of cells the battery has. More cells correspond to more current driving capacity.In analogy, Battery is the Heart pumping blood that is Current to all the chips (organs) of the motherboard in the Laptop.
3. Laptop Connectivity : The Sense Organs.
It's all miniaturized and serial now a days. What does this mean? The ports that connect the Laptop to the outer world are decreasing in size and increasing in data transfer speeds. The serial Port standards on your laptop has been constantly increasing the transfer speeds with the next generation of standard transferring data at a much faster speed probably with the same footprint or smaller. Take USB for example, the same sized port can be used to connect a keyboard at 1.5Mbps, Mouse at 12 Mbps, USB2.0 Pen drive at 480Mbps, USB 3.0 Pen drive at 5Gbps and USB3.1 Pen drive at 10Gbps. Even the Wireless standards are set for higher speeds. This is essentially driven by the consumer need of accomplishing tasks faster in relatively lesser time. Standards like HDMI, Display Port, Thunder Bolt, 802.11 Wireless have been constantly evolving with higher next generations transfer speeds compared to the previous ones. It's important to select the connectivity options matching them with the already existing accessories the ports need to connect with. In analogy, the Ports in the Laptop are it's Sense Organs.
4. Laptop Display : The Face.
Clarity of picture is the key. A 15 inch display with same clarity as a 10 inch laptop display is better. Clarity depends on the Pixel count and the proximity of the pixels from each other for a given display size. PPI or Pixel per Inch would provide this information. In general a 4K UHD ( 4096 X 2160 pixels ) is better resolution than QUHD (3840×2160 pixels ), 2K( 2048 X 1080 pixels ) and FHD ( 1920x1080 pixels ) displays. Colour combinations and quality can play their role in selection. Higher colour combinations essentially means higher digital RGB combinations a display can support. The matte or glossy polarizer screen attached on the top of the display glass defines the usability when under the sun. In analogy, Display is the Face of the Laptop.
5. Laptop Security : The Immune System.
This ranges from Physical Security of the laptop with a Kensington Lock Port to the Trusted Platform Module(TPM) chip on the motherboard, there are a list of options to look at. The Finger Print reader and smart Card reader provides additional security against misuse of unwanted accessibility. The TPM is a special hardware on the Motherboard that stores encryption keys and passwords and keeps the platform trustworthy. The security information present in the hardware provides a better defense against external malicious software attacks. For example, if the configuration of the system is changed unexpectedly at the start-up, the accessibility to the secure applications can be blocked providing a more secure environment until the issue is resolved. In analogy, security options in the laptop are like it's immunity.
6. Laptop Dynamic Storage : The Memory for the Brain.
Dynamic Storage like Dual Data Rate Memory (DDR) plays it's part in improving the performance of the laptop. The standards have evolved from DDR,DDR2,DDR3 to DDR4 ( DDR4 being the fastest) that essentially increases the read and write data speeds from/to the memory contributing to the increased performance.
However, the maximum transfer speeds associated with the different memories needs to be looked at.
7. Laptop Static Storage : The Stomach.
Hard Disk Drive ( HDD ) and Solid State Drive ( SSD ) makes the static storage. HDDs comes in Terabytes now a days that is more than a 1024 Gigabytes and SSDs in Gigabytes usually. The higher the GB capacity, the more the storage option. Points to note are while HDDs comes with more capacity, SSDs are more reliable and faster because of their overall structure of not having any mechnical components like HDDs.
8. Laptop Portability : The Weight.
Light weight and small size while not compromising on the Performance is what can decide.
While the industry is moving towards thinner electronics with all components getting thin and footprints smaller, this is more of a personal preference.Choose that most suits your need and can ease your stress from a long workday.
We shall use another forum to discuss the blazers and jackets for your Laptop that is a good looking Laptop bag.