You can very likely upgrade your computer from 512MB to 1024MB. Take care to make sure that the RAM you purchase is the same DDR (double data rate) as the existing RAM.
Not much different from what we have today (2017).
3ghz-300ghz
9kHz to 300GHz.
Radio frequency range which is at 3KHz to 300 MHz, Microwave which is at 300MHz to 300GHz, and Infrared is at 300GHz to 400 THz.
the frequency range of radio waves is ranging from 3kHz-300GHz
freq range of rf is 3hz (extremely low frequency) to 300Ghz (extremely high frequency)
The electromagnetic spectrum sets the frequency limits of microwaves. Microwaves have lower frequencies than infrared waves but higher frequencies than radio waves. However, practical constraints such as technological capabilities and regulatory standards also influence the operating frequencies of microwave devices.
analog circuit is circuit that generates audio, sound, radio etc (waves of the natural world) RF stand for radio frequency, it is often refer to the property of signal transmission in high frequency (HF). If you say a circuit is RF, the circuit would be in the frequency range between 3kHz to 300GHz. The reason that RF circuit is special is because the performance of signals of higher frequency is different to other lower frequency AC circuits. When designing a RF circuit, RF engineers have to consider the type of wires, lengths, use of components, signal loss etc. It is because high frequency signals would take a piece of wire (longer than 1/10 of signal wavelength) as wires with many inductors and capacitors.
The rate of oscillation for a radio frequency is typically measured in hertz (Hz). For example, AM radio frequencies oscillate at around 535-1605 kHz (kHz = kilohertz) while FM radio frequencies oscillate at around 88-108 MHz (MHz = megahertz).
Yes. Microwaves are the segment from 0.3GHz to 300GHz with wavelengths from roughly one metre to one millimetre respectively. There are a number of named sub-divisions created for easy reference purposes in communication systems and licensing e.g. UHF, EHF, SHF.
'Microwave' is not a scientific term, and encompasses a wide range of frequencies. Wikipedia speaks of a range between 0.3 and 300GHz, resulting in a wavelength between one meter and one millimeter. Other interpretations of the colloquial term 'microwave' might exist. References:
From about 9 kilohertz (kHz) to thousands of gigahertz (GHz). This portion is referred to as the RF Spectrum. As the frequency is increased beyond the RF spectrum, electromagnetic energy takes the form of infrared (IR), visible light, ultraviolet (UV), X rays, and gamma rays. The ranges, or frequency bands, are as follows. 3kHz to 30kHz v.l.f. Very low frequency 30kHz to 300kHz l.f. Low 300kHz to 3MHz m.f. Medium 3MHz to 30MHz h.f. High 30 MHz to 300MHz v.h.f. Very high 300MHz to 3GHz u.h.f. Ultra-high 3GHz to 30GHz s.h.f. Super-high 30GHz to 300GHz e.h.f. Extra-high