some old enlarge lens-boards just had aplain hole in them so you needed the threaded ring to fix the lens in to the board
Binary Counter
clock signal divider
used in rotary shaft encoder
geiger muller scintilation counter it is application in cytological studies
A mod-10 counter is often referred to as a decade counter. This type of counter counts from 0 to 9 and then resets to 0, making it useful for applications that require counting in decimal. Decade counters are commonly used in digital electronics and applications such as digital clocks and frequency counters.
voltage sensor, alarm circuit, Pulse generator, counter, register and timing circuits.
Applications of prestressed concrete:Used in large diameter concrete pipesUsed in railway sleepersWater tanksPrecast concrete piles to counter tensile stress during transport and erection. used in bridges construction
It's typically used for counter tops, furniture, speaker boxes and many other indoor applications.
You can buy a variety of applications on the Google Apps Market. You can buy games for entertainment such as Angry Birds or you can even buy apps to help you with your everyday life such as a calorie counter.
some old enlarge lens-boards just had aplain hole in them so you needed the threaded ring to fix the lens in to the board
Ring counter A ring counter is a shift register (a cascade connection of flip-flops) with the output of the last one connected to the input of the first, that is, in a ring. Typically a pattern consisting of a single 1 bit is circulated, so the state repeats every N clock cycles if N flip-flops are used. It can be used as a cycle counter of N states. Johnson counter A Johnson counter (or switchtail ring counter, twisted-ring counter, walking-ring counter, or Moebius counter) is a modified ring counter, where the output from the last stage is inverted and fed back as input to the first stage. A pattern of bits equal in length to twice the length of the shift register thus circulates indefinitely. These counters find specialist applications, including those similar to the decade counter, digital to analog conversion, etc
A two-bit binary counter is a digital circuit that counts in binary from 00 to 11, representing decimal values 0 to 3. It uses two flip-flops to store the two bits, where each flip-flop represents one bit of the counter. The counter increments by one with each clock pulse, cycling through the states 00, 01, 10, and 11. This type of counter can be used in various applications, such as in digital clocks and frequency dividers.