When the 74LS90 chip QA is connected to INPUT B and the counting pulse is input from INPUT A, which counting system does the chip employ? ()
A: Binary system
B: Quinary system
C: Decimal system
D: Septenary system
A: Binary system
B: Quinary system
C: Decimal system
D: Septenary system
C
举一反三
- The timer T1 of 8051 single chip microcomputer is used as counting mode, and the counting pulse is. A: Input from T1 (p3.5) B: Provided by internal clock frequency C: Input from t0 (p3.4) D: Counting by external counting pulse
- 片上系统，又称SOC，其英文全称是： A: Separation of concerns B: System on Chip C: System Operations Center D: System of computer
- If the steady-state error of unity feedback control system to a ramp input is constant, then the system is a type system A: 0 B: I C: II D: III
- SOC是SYSTEM ON A CHIP的缩写
- 苹果 IOS 作为移动端的操作系统，其全称是： A: Input & Output System B: internetworking Operating System C: Iphone Operating System D: Interactive Operating System
内容
- 0
Which of the following phenomena belongs to an adiabatic process ?() A: The temperature of the system remains unchanged B: The system does not absorb heat from the environment C: No heat exchange between the system and the environment D: The internal energy of the system remains unchanged
- 1
SOPC(System On a Programmable Chip)的中文含义是（ ）
- 2
SOC是System On Chip,芯片系统的缩写。（)
- 3
SOC是SYSTEM ON A CHIP的缩写 A: 正确 B: 错误
- 4
计算机硬件中BIOS表示 A: Before Initiation Of Operating System B: Binary Input Output Support C: Basic Input Output Systems D: None of the above