### Digital Electronics Objectives Part 13

**241 . ** ** Bit **is the name given to a binary digit.

**242 .** ** 2-1**is the weight of the second bit to the left of the binary point.

**243 . ** Monolithic technology is widely used in the manufacture of **integrated circuit.**

**244 . ** ** None of the above** conversion is incorrect.

**245 . ** A three-input AND gate is shown in Fig. 40. If the circuit works off the positive voltage mode logic with logic levels 1 = +5 V and 0=0 V, the binary state of output will be **F=0.**

**246 . ** In Fig. 41 the inputs to a two-input OR gate are shown. This gate works off positive voltage mode logic. The logic levels are 1=+5 V and 0=0 V. The output will be **F=1.**

**247 .** The binary logic levels of a gate circuit are 1 = +12V and 0 = 0V. **Voltage mode, positive logic is used.**

**248 .** ** F=1** is the output of a NOT gate when its input C = 0.

**249 .** Inputs for a NOR gate are A and B waveforms as shown in Fig. 41. The output will be as shown in **figure B.**

**250 . ** The maximum propagation value in case of 7400 NAND gate is** less than 20 nano-seconds.**

**251 .** The zero-state output of a gate circuit is measured and found to be the 0.2 V typical value.** 0.6 V **noise voltage could the output receive without causing a false 1 to the circuits tied at its output.

**252 .** The voltage needed for a TTL IC power supply is **5V dc.**

**253 . ** The simplified complement of the function πΆD + BD is **π+ ππ.**

**254 . ** A simplified complement of the function π΄π΅πΆ+π΄π΅π·+π΅π· is** π¨π©+π©π«+ π©πͺ π«.**

**255 . ** The Boolean function F = π΄π΅πΆ+ π΄π΅π· donβt care = (AB + π΄π΅) (πΆ+π·) when simplified it becomes any of the following EXCEPT**π¨πͺ+π¨π«.**

**256 .** The Boolean function F = π΅πΆ+ π΄π΅+π΄π΅πΆ donβt care = π΄π΅πΆ+ π΄π΅πΆ when simplified becomes **π©+πͺ.**

**257 .** The Boolean function** AB + π¨π©πͺ+ π¨πͺ** when simplified become **AB + C.**

**258 **. A minterm is** a square on a karnaugh map.**

**259 . ** A certain 3-input, 1-output device has the voltage characteristics displayed (numerical values are volts)

If the logical 0 is equivalent to 5 volts and the logical 1 is equivalent to 0 volts, the logical equation describing this device is **π¨π©+ πͺ.**

**260 . ** An operating system that allows the user to correct input data has **Text editing.**