Question

Arrange the following configuration for CPU in decreasing order of operating speeds _____________________.

• A. Hardwired control, vertical programming, horizontal programming
• B. Hardwired control, horizontal programming, vertical programming
• C. Horizontal programming, vertical programming, hardwired control
• D. Vertical programming, hardwired control, horizontal programming

Answer 1

The correct option is B Hardwired control, horizontal programming, vertical programming

Configuration for CPU in decreasing order of operating speeds:-

Hardwired control, horizontal programming, Vertical programming

Hardwired control:- Hardwired control is a control mechanism that generates control signals by using an appropriate finite state machine. Microprogrammed control is a control mechanism that generates control signals by reading a memory called a control storage (CS) that contains control signals.

Horizontal programming:- In this types of code the micro code contains the control signal without any intermediary. Horizontal micro code instruction contain a lot of signals and hence due to that the number of bits also increase.

Vertical programming:- In case of vertical micro code every action is encoded in density. Vertical micro code are slower but they take less space and their actions at execution time need to be decoded to a signal.