Please give the reason of false !

Part I. True or false (20%) 1.( )A buffer gate changes the logic level of the input. It is used to isolate or amplify the signal. 2. (F)ADflip-flop cannot be used to latch data. 3. (F) 8051 has an internal clock oscillator. 4. (F) 8051 has an internal RAM of4K bytes. . foM tye 13E 5. )A HEX file is a directly executable program for 8051. 6. () There are two register banks in 8051. 7. (F) The stack memory locations in 8051 are always overlapped with the register bank area. A programmer cannot change the stack memory locations 8. ( F) 8051 has 4 I/O ports. Port 1 can be used as address AS to AIS. 9. ()We can use MOV instructions to access both 8051 internal RAM and ROM. 10. ) 8051 provides only Rotate Assembly codes. It does not have Shift nstructions