Hello!!
Right now i am using Pentium 4 Desktop PC having windows 7 and Ubuntu 12.04 in it.
Its is having 500GB Hard Disk, 2 GB DDR2 RAM, but still my PC is very very slow, as i am using Pentium 4 2.66 GHz Processor.
This PC is around 8 years Old and i had increased its RAM to 2GB and changed its Motherboard, but had not changed the processor.
Some of the Software i used normally are as follow:- MPLAB-X
PIC32 and 8-bit Compiler of PIC
mikroC for AVR and PIC
Keil for 8051 and ARM
CoCox Ide along with GNU C ARM Compiler
Proteus
Eagle Basic4Android MATLAB
CodeBlocks
Microsoft Office
Techsmith Camtasia
Camstudio
I found some of the laptops on flipkart, here is the comparision
My Budget is around Rs35000
and i think DELL VOSTRO 2520 LAPTOP (3RD GEN CI5/ 4GB) is best for me.
I can not recommend a specific laptop but memory and video are very important. 4GB RAM is good enough for most. Get a fast video card that has it's own memory [NOT shared memory - shared memory is a favourite 'trick' to reduce cost].
My primary importance is Running the engineering softwares, do i still need a laptop which have video memory separate, as i hardly watches movies and other video stuff.
My budget is also upto Rs35K
buy a Asus laptop, Dell products are not that good
HP has bloated software installed, so the best bet is Asus
As for your desktop PC it will be better to upgrade
the processor to Core 2 Duo or better Core i5
From my IT experience I have not had any problems with either any of the Dell , Sony Vaio, or Toshiba laptops.
If you are looking for a light weight laptop, I would recommend the Sony Vaio. I would also recommend a dell for their 3 year warranty as per the others that have the standard 1 year warranty.
The applications that u r using are not needy on hardware but most of applications these days are optimized for multi core architecture, its better if u buy a second desktop with mini-ITX cabinet, core i7-4770 processor and 4GB or more memory with compatible ASUS or other motherboard. 400W to 600W PSU. And u r done. Nothing else required and u need not to worry for another 8 to 10 years. And building this will cost u much less than a laptop.
If u r someone who travels a lot only then get a laptop, otherwise get a desktop bcoz desktops are very reliable.