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RD Sharma is not at all a good book for JEE Preparation. Let me show you an example to demonstrate the difference between RD Sharma and a good book for JEE preparation.Conversation with RD SharmaYou: Hello RD SharmaRD Sharma: Hello, What is your name?You: ABCRD Sharma: Hello, Can you tell me your name?You: I just told you. It’s ABC.RD Sharma: OK. But what do people call you?You: They call me ABC.RD Sharma: OK ABC. Tell me about you.You: I am a JEE aspirant.RD Sharma: Are you preparing for JEE?You: YesRD Sharma: Now remember the steps to solve this first question.You: OKEnd of ConversationConversation with a Good BookYou: Hello Good BookGood Book: Hello, What is your name?You: ABCGood Book: Hello ABC. Tell me about you.You: I am a JEE aspirant.Good Book: Good. How are you preparing for JEE?You: Going to coaching.Good Book: Good. Now try to come up with a solution to this first question.You: OKEnd of ConversationThe difference between the two conversations is simpleRD Sharma will ask you redundant questions even if they are very easy. Each exercise will include many questions of nearly the same type with no significant difference while a good book will ask you a variety of questions that will prepare you for JEE.The questions asked by RD Sharma are not up to the mark. The questions are simple. A good book will ask you questions that are according to the level asked in JEE.Some questions in the book are meant for remembering rather than solving which will not help you in JEE. A good book will give you questions that you can solve on your own and thus help you.Hope this answers your question.Best of Luck.

Match: RR Vs MI, CLT20 Final 2013. It was Rahul Dravid's last international appearance. RR was set a target of 203 by MI.They were struggling initially and at one stage the equation was 67 runs, 6 overs, 8 wickets in hand with Rahul Dravid yet to bat. Rahane was batting on 56 and watto was trying to settle in. Next over, Harbhajan scalps watto. I was seriously hoping for RD to come in and play a second fiddle to rahane (RD's student) to take the match away from MI.Unfortunately it wasn't the case. RD dropped himself and batted at 6 down. The asking rate was creeping up. His stint lasted just 2 balls. It was a yorker on the stumps and RD made room to smash the ball across covers. He missed it and was clean bowled. RD, man who epitomized the art of defence. It was painful to see his stumps being castled. Harsha remarked - "In a career that is marked by grace, style and beautiful batsmanship, it's a slog that's ended Rahul Dravid's career.But once again, it was what the TEAM needed".RR lost the match. It also marked the final farewell for Sachin and he was a celebrated hero. RD had a similar ending, playing as a shadow to him, being the second best.

Wouldn’t you know it, I hand assembled two different Hello Worlds (one in 6502 on an Apple ][, and one in CP1610 on an Intellivision) a few months ago.https://www.quora.com/Is-there-an-emulation-that-lets-you-write-a-small-program-like-Hello-World-completely-in-machine-code-no-assembly-and-execute-it/answer/Joe-Zbiciak/comment/48852939If I had written these using an assembler, rather than hand assembling into machine code, it would have gone somewhat faster. If nothing else, I wouldn’t have had to compute branch offsets by hand. Assembly is easier than machine language, not harder.You’ll note that even for the machine code, I wrote the human-readable assembly first, since it’s easier to grok. Still, there is very nearly a 1:1 correspondence between assembly syntax and the corresponding machine code. Writing the assembly does make it a little easier on the eyes.For CP1610 machine code, though, if you write it in octal, you can read the machine code fairly easily. CP1610 has 10-bit opcodes, and most of the opcodes divide into four fields:Bit 9: Internal/externalBits 8–6: Opcode (for external reference instructions)Bits 5–3:Source (for many instructions)Opcode (for shifts and certain internal instructions)Bits 2–0:Destination (for many instructions)Opcode (for internal control instructions and jumps)Here’s an instruction set summary entirely in octal:0000 HLT 0001 SDBD Set Double Byte Data (prefix) 0002 EIS Enable interrupts 0003 DIS Disable interrupts 0004 => escape to J / JSR opcode space 0005 TCI Terminate Current Interrupt 0006 CLRC Clear Carry 0007 SETC Set Carry  001d INCR Rd Increment register Rd 002d DECR Rd Decrement register Rd 003d COMR Rd Complement register Rd 004d NEGR Rd Negate register Rd 005d ADCR Rd Add carry to register Rd  0060 GSWD R0 Get status word into R0 0061 GSWD R1 Get status word into R1 0062 GSWD R2 Get status word into R2 0063 GSWD R3 Get status word into R3 0064 NOP (0) No operation 0065 NOP (1) No operation 0066 SIN (0) Software Interrupt 0067 SIN (1) Software Interrupt  Note: For shift/SWAP/rotate: m =(x[2]+1), d = x[1:0] 010x SWAP Rd,m Swap bytes in Rd.  011x SLL Rd,m Shift Logical Left. 012x RLC Rd,m Rotate Left through Carry 013x SLLC Rd,m Shift Logical Left into Carry 014x SLR Rd,m Shift Logical Right into Carry 015x SAR Rd,m Shift Arithmetic Right 016x RRC Rd,m Rotate Right through Carry 017x SARC Rd,m Shift Arithmetic Right into Carry  02sd MOVR Rs,Rd Move register Rs to Rd 03sd ADDR Rs,Rd Add register Rs to Rd 04sd SUBR Rs,Rd Subtract Rs from Rd 05sd CMPR Rs,Rd Compare Rs with Rd (by subtraction) 06sd ANDR Rs,Rd Bitwise AND Rs with Rd 07sd XORR Rs,Rd Bitwise XOR Rs with Rd  10xx => escape to conditional branch opcode space  110d MVO Rd,addr Write Rd to memory at addr  120d MVI addr,Rd Read memory at addr into Rd 130d ADD addr,Rd Add memory at addr to Rd 140d SUB addr,Rd Subtract memory at addr from Rd 150d CMP addr,Rd Compare memory at addr with Rd (by subtraction) 160d AND addr,Rd Bitwise AND memory at addr w/ Rd 170d XOR addr,Rd Bitwise XOR memory at addr w/ Rd  ; Note: s = 001 .. 110. 11sd MVO@ Rd,Rs Write Rd to memory @Rs 12sd MVI@ Rs,Rd Read memory @Rs into Rd 13sd ADD@ Rs,Rd Add memory @Rs to Rd 14sd SUB@ Rs,Rd Subtract memory @Rs from Rd 15sd CMP@ Rs,Rd Compare memory @Rs with Rd (by subtraction) 16sd AND@ Rs,Rd Bitwise AND memory at addr w/ Rd 17sd XOR@ Rs,Rd Bitwise XOR memory at addr w/ Rd  ; Note: Followed by immediate value 'x'. 117d MVOI Rd,#x Write Rd over immediate value #x 127d MVII #x,Rd Move #x into Rd 137d ADDI #x,Rd Add #x to Rd 147d SUBI #x,Rd Subtract #x from Rd 157d CMPI #x,Rd Compare #x with Rd (by subtraction) 167d ANDI #x,Rd Bitwise AND #x w/ Rd 177d XORI #x,Rd Bitwise XOR #x w/ Rd That’s the entire instruction set, save for the Jump/Branch opcode spaces which I left out. Those aren’t complicated either.As you can see, the opcodes are pretty easy to follow in octal. There isn’t a lot to learn. If you needed to, you could probably get reasonably fluent in this instruction set at the machine code level in a short amount of time (month or two?).