CHAPTER 1 INTRODUCTION TO
COMPUTERS AND PROGRAMMING
EXAM 2025/2026 QUESTIONS AND
ANSWERS 100% PASS
A program - ANS is a set of instructions that a computer follows to perform a task
referred to as software
A typical computer
system consists of the following - ANS 1. The central processing unit (CPU)
2. Main memory (random-access memory, or RAM)
3. Secondary storage devices
4. Input devices
5. Output devices
The central processing unit, or CPU - ANS is the part of a computer that actually runs
programs.
the central processing unit consists of two parts:
the control unit
the arithmetic and logic unit (ALU).
pg. 1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, The control unit - ANS coordinates all of the computer's operations.
determining where to get the next instruction and regulating the other major
components of the computer with control signals.
the arithmetic and logic unit - ANS designed to perform mathematical operations.
The steps in the fetch/decode/execute cycle are as follows: - ANS Fetch
The CPU's control unit fetches, from main memory, the next instruction in the
sequence of program instructions.
Decode
The instruction is encoded in the form of a number. The control unit decodes
the instruction and generates an electronic signal.
Execute
The signal is routed to the appropriate component of the computer (such as
the ALU, a disk drive, or some other device). The signal causes the component to perform an
operation.
Program - ANS is a sequence of instructions stored in the computer's memory.
When a computer is running a program, the CPU is engaged in a process known formally as the
fetch/decode/execute cycle.
RAM - ANS Main memory is commonly known as random-access memory or RAM.
RAM is usually a volatile type of memory that is used only for temporary storage
while a program is running.
pg. 2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
COMPUTERS AND PROGRAMMING
EXAM 2025/2026 QUESTIONS AND
ANSWERS 100% PASS
A program - ANS is a set of instructions that a computer follows to perform a task
referred to as software
A typical computer
system consists of the following - ANS 1. The central processing unit (CPU)
2. Main memory (random-access memory, or RAM)
3. Secondary storage devices
4. Input devices
5. Output devices
The central processing unit, or CPU - ANS is the part of a computer that actually runs
programs.
the central processing unit consists of two parts:
the control unit
the arithmetic and logic unit (ALU).
pg. 1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, The control unit - ANS coordinates all of the computer's operations.
determining where to get the next instruction and regulating the other major
components of the computer with control signals.
the arithmetic and logic unit - ANS designed to perform mathematical operations.
The steps in the fetch/decode/execute cycle are as follows: - ANS Fetch
The CPU's control unit fetches, from main memory, the next instruction in the
sequence of program instructions.
Decode
The instruction is encoded in the form of a number. The control unit decodes
the instruction and generates an electronic signal.
Execute
The signal is routed to the appropriate component of the computer (such as
the ALU, a disk drive, or some other device). The signal causes the component to perform an
operation.
Program - ANS is a sequence of instructions stored in the computer's memory.
When a computer is running a program, the CPU is engaged in a process known formally as the
fetch/decode/execute cycle.
RAM - ANS Main memory is commonly known as random-access memory or RAM.
RAM is usually a volatile type of memory that is used only for temporary storage
while a program is running.
pg. 2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
