| k-Digit Decimal Machine Numbers | Machine Numbers | Introduction to Numerical Methods |
| r-Regular Graph | Regular Graph | Types of Graphs |
| 1st Shift | Frequency Shift | Fourier Transform |
| 2nd Shift | Time Shift | Fourier Transform |
| a Centrally Planned Economy | Command System | Economic Systems |
| a Control Volume | Open system | System |
| a Datagram Service | Connectionless | Packet Switching |
| a Lunchtime Attack | CCA1 | Block Encryption Schemes |
| a Step Cost | Semi-Variable Cost | Cost Classification |
| ABC | Activity Based Costing | Activity Based Costing |
| ABCD Parameters | Transmission Parameters | Two Port Networks |
| ABI | Application Binary Interface | Kernel |
| Accountability | Nonrepudiation | Introduction to Computer Security |
| Acid-Test Ratio | Quick Ratio | Ratio Analysis |
| ACL | Access Control List | Access Control |
| Activity or Asset Management Ratios | Efficiency Ratios | Ratio Analysis |
| Ad Hoc Network | IBSS | Wireless Networks |
| Advanced Message Queuing Protocol | AMQP | Messaging |
| AES, Rijndael | Advanced Encryption Standard | Advanced Encryption Standard |
| AI | Artificial Intelligence | Introduction to Artificial Intelligence |
| Alastic Modulus | Young's Modulus | Elasticity |
| Anodic Reaction | Oxidation | Degradation of Metals |
| Anonymous Pipes | Ordinary Pipes | Inter-Process Communication |
| APTs | Advanced Persistent Threat | Threat |
| Area Moment of Inertia | Second Moment of Area | Introduction to Statics |
| Arity | Degree | Entity Relationship Model |
| ARP | Address Resolution Protocol | IPv4 |
| AS | Authentication Server | Kerberos |
| ASan | Address Sanitizer | Dynamic Analysis |
| ASK | Amplitude Shift Keying | Digital to Analog Encoding |
| Associative Memory | TLB | Memory |
| Banding | False Contouring | Sampling and Quantization |
| Baud Rate | Modulation Rate | Modulation |
| BCD | Binary Coded Decimal | Number Systems |
| BDC | Bottom Dead Centre | Gas Power Cycle |
| Best Linear Unbiased Estimator (BLUE) | Accuracy | Estimators |
| BFS or Level-Order Construction | Breadth-First Search | Spanning Tree |
| BGP/routing Poisoning | Rerouting | Denial of Service |
| Blind Search | Uninformed Searching | Uninformed Searching |
| Blocked | Waiting | Process |
| Boiling or Evaporation | Vaporization | Pure Substances |
| Boiling Region | Liquid–Vapour Mixture | Pure Substances |
| Branch Hazard | Control Hazard | Pipeline Hazards |
| Breakeven Analysis | Cost Volume Profit Analysis | Cost Volume Profit Analysis |
| Bucky Ball | Buckminsterfullerene | Allotropy |
| business-IT Alignment-Based Design | Function-Based Design | Network Design |
| Busy-Wait | Polling | I/O System |
| BVP | Boundary Value Problem | Boundary Value Problem |
| BWR Equation | Benedict–Webb–Rubin Equation | Ideal Gas Laws |
| Bypassing or Short-Circuiting | Forwarding | Pipeline Hazards |
| C2 Node | C&C Node | Denial of Service |
| CAS | compareandswap | Critical Section Problem |
| Cathodic Reaction | Reduction | Degradation of Metals |
| CC, ISO/IEC 15408 | Common Criteria | Security Evaluation |
| CDB | Common Data Bus | Dynamic Scheduling |
| Centre of Area, Geometric Centre | Centroid | Introduction to Statics |
| CFA | Color Filter Array | Image Sensors |
| Characteristic Factor or Biometric Authentication | Something You Are | Authentication |
| Charge Coupled Device | CCD | Image Sensors |
| CID | Connection Identifier | Packet Switching |
| Cipher Block Chaining | CBC Mode | Block Ciphers |
| Cipher Feedback | CFB Mode | Block Ciphers |
| CIR | Committed Information Rate | MAN & WAN |
| Circumferential Vector | Chiral Vector | Carbon Nanotubes |
| Clairaut's Theorem on Equality of Mixed Partials | Schwarz's Theorem | Theorems |
| Class Members | Static Members | Java Basics |
| Clausius Theorem | Clausius Inequality | Entropy |
| CLI | Calling Line ID | Telephony |
| CLI | Command-Line Interface | Services |
| Closed Trail | Circuit | Walk |
| CLT | Central Limit Theorem | Sampling Distribution |
| Clustering Index | Primary Index | Indexing |
| CNF | Conjunctive Normal Form | Propositonal Logic |
| CNF | Chomsky Normal Form | Normal Form of CFG |
| Cognitive Modelling Approach | Thinking Humanly | Introduction to Artificial Intelligence |
| Cohort Surveys | Panel Surveys | Sampling Techniques |
| Collaboration Diagram | Communication Diagram | Interaction Diagram |
| Common-Size Analysis | Vertical Analysis | Financial Statement Analysis |
| Commong Gateway Interface | CGI Exploitation | Network Attacks |
| Compressed Liquid | Subcooled Liquid | Pure Substances |
| Conjucative Normal Form or Maxterm Expansion | Product of Sums | Introduction to Combinational Logic |
| Constructive Cost Model | COCOMO | Cost Estimation |
| Contours | Level Curves | Surfaces |
| COTS (Commercial Off-The-Shelf) | Generic Product | Introduction to Software Engineering |
| Counter Mode | CTR Mode | Block Ciphers |
| Countermeasure | Control | Control |
| CPD | Local Conditional Probability Distribution | Bayesian Network |
| Critical Region | Rejected Region | Hypotheses Testing |
| CRS | Constant Returns to Scale | Returns to Scale |
| CSG | Context Sensitive Grammar | Context Sensitive Grammar |
| CSL | Context-Sensitive Language | Context Sensitive Grammar |
| CSP | Constraint Satisfaction Problem | Constraint Satisfaction Problem |
| Cup-and-Cone Fracture | Ductile Fracture | Fracture |
| DAT Drives | Tape Drive | Magnetic Storage |
| Data or Delay Flip-Flop | D Flip-Flop | D Flip-Flop |
| Data or Delay Latch | D Latch | D Latch |
| Data Processing Unit | DPU | Optimizations Beyond Pipelining |
| DCT | Discrete Cosine Transform | Discrete Cosine Transform |
| DDFS | Depth-Limited DFS | Uninformed Searching |
| Dead Code | Unreachable Code Detection | Static Analysis |
| Default DNS Servers | Local DNS servers | Network Applications |
| Denial of Service | Interruption | Networks |
| DES | Data Encryption Standard | Data Encryption Standard |
| Desktop Systems or Personal Computer OSs | 4th Generation | Operating System |
| DFA | Deterministic Finite Automaton | Deterministic Finite Automaton |
| DFD | Data Flow Diagram | Threat Modeling |
| DFS or Backtracking Algorithm | Depth-First Search | Spanning Tree |
| DHCP | Dynamic Host Configuration Protocol | IPv4 |
| DHE | Ephemeral Diffie-Hellman | Diffie-Hellman Key Exchange |
| Differential Phase Encoding, or DPE | Differential Manchester | Digital to Digital Encoding |
| DiffServ | Differentiated Services | Quality of Service |
| Digraph | Directed Graph | Types of Graphs |
| Dijkstra Semaphore | Blocked–Set Semaphore | Semaphore |
| Dijkstra's Algorithm | Uniform Cost Search | Uninformed Searching |
| Discriminator | Partial Key | Entity Relationship Model |
| Disjoint Set Union (DSU) | Union Find | Union Find |
| Disjunctive Normal Form or Minterm Expansion | Sum of Products | Introduction to Combinational Logic |
| Disk Array or SAN Array | Storage Array | Disk Attachment |
| Dispatch | Issue | Dynamic Scheduling |
| Distance | Metric | Metric |
| Distribution Unit | Consumer Unit | Household Wiring |
| DLP | Data-Level Parallelism | Optimizations Beyond Pipelining |
| DMA | Direct Memory Access | Input/Output |
| DMT | Dynamic Multitone | ADSL |
| DMZ | Demilitarized Zone | Networks |
| DomainKeys Identified Mail | DKIM | Email |
| DoS | Denial of Service | Network Attacks |
| DRS | Decreasing Returns to Scale | Returns to Scale |
| Dumb Fuzzing | Mutation-based | Dynamic Analysis |
| Duration of a Bit | Length of a Bit | Encoding & Decoding |
| DWPD | Drive Writes per Day | Permanent Storage |
| EAL | Evaluation Assurance Level | Security Evaluation |
| EAT | Effective Access Time | Virtual Memory |
| EDF | Earliest Deadline First | Real-Time CPU Scheduling |
| Effective Value | rms Value | AC Theory |
| EFM | Ethernet First Mile | MAN & WAN |
| EFMC | EFM over Copper | MAN & WAN |
| EFMF | EFM over Fibre | MAN & WAN |
| Electronic Code Book | ECB Mode | Block Ciphers |
| Elevator Algorithm | SCAN | HDD Scheduling |
| Elliptic-Curve Ephemeral Diffie-Hellman | ECDHE | Diffie-Hellman Key Exchange |
| Encryption Algorithm | Ciphers | Ciphers |
| Euclidean Norm | 2-Norm | Norms |
| Eulerian Integral of the First Kind | Beta Function | Beta Function |
| Eulerian Integral of the Second Kind | Gamma Function | Gamma Function |
| Exception | Trap | Interrupt-Driven I/O |
| Executable File | Program | Process |
| Extended Markup Language | XML | Application Development |
| eXtensible Messaging and Presence Protocol | XMPP | Messaging |
| Exterior Gateway Protocol (EGP) | Inter-AS | Autonomous System |
| FA | Finite Automaton | Finite Automaton |
| Factory Overhead or Manufacturing Overhead | Production Overhead | Cost Classification |
| FCAPS | ISO Network Management Model | Network Management |
| FCFS | First-Come First-Served | CPU Scheduling |
| FDM | Frequency Division Multiplexing | Multiplexing |
| Federal Information Processing Standards | FIPS 140 | Security Evaluation |
| Feedback Polynomial | Connection Polynomial | Linear Feedback Shift Registers |
| Filter, Mask, Template or Window | Kernel | Neighbourhood Operations |
| Filtered Stream, Wrapper Streams | Chain Stream | Streams |
| FIM | Federated Identity Management | Authentication |
| Finite State Machines (FSMs) | State Machines | State Machines |
| Forced Response | Steady-State Response | Transient Analysis |
| Francis Turbine | Radial Flow | Turbines |
| Free Market or Capitalism | Pure Market System | Economic Systems |
| Free Response | Transient Response | Transient Analysis |
| Frenet Frame | TNB Frame | Tangent and Normal Vectors |
| FSK | Frequency Shift Keying | Digital to Analog Encoding |
| FTL | Flash Translation Layer | Mass Storage Systems |
| Fusion | Melting | Pure Substances |
| GC | Garbage Collection | Mass Storage Systems |
| GCD | Grand Central Dispatch | Implicit Threading |
| Glitch | Timing Hazards | Timing Hazards |
| Global Maximum | Maximum | Extremums |
| Global Minimum | Minimum | Extremums |
| GNF | Greibach's Normal Form | Normal Form of CFG |
| Greedy Local Search | Hill Climbing | Local Search |
| GUI | Graphical User Interface | Services |
| Hamiltonian Circuit | Hamiltonian Cycle | Walk |
| Hardware Formatting | Low-Level Formatting | Permanent Storage |
| Hash-Based MAC | HMAC | Message Authentication Code |
| HBA or Controller | Host-Bus Adapter | Mass Storage Systems |
| HDD | Hard Disk Drives | Permanent Storage |
| Heat Reservoir | Thermal Reservoir | 2nd Law |
| High-Level Formatting | Logical Formatting | Permanent Storage |
| Histogram Specification | Histogram Matching | Point Operations |
| Historical Cipher | Classical Cipher | Ciphers |
| HOL Blocking | Head-Of-Line Blocking | TCP |
| Host Adapter | Controller | I/O System |
| HTTP Methods | Verbs | Web |
| IaC | Infrastructure as Code | DevOps |
| ICD | In-Circuit Debugging | Microcontroller Debugging |
| ICE | In-Circuit Emulator | Microcontroller Debugging |
| ICSP | In-Circuit Serial Programming | Microcontroller Programming |
| Idle ARQ | Stop-and-Wait ARQ | Data Link Layer |
| IDS | Iterative Deepening DFS | Uninformed Searching |
| IIoT | Industrial IoT | Application Domains |
| Indistinguishable States | Equivalent States | State Minimization |
| Induced Norm | Norm | Norm |
| Injection | One-One | Relations |
| Interior Gateway Protocol (IGP) | Intra-AS | Autonomous System |
| Interval of Convergence | Range of Convergence | Power Series |
| Intrusion Detection System | IDS | Networks |
| IntServ | Integrated Services | Quality of Service |
| Inverse | Complement | Complement |
| Investor/Market Value Ratios | Market Value Ratios | Ratio Analysis |
| IPC | Inter-Process Communication | Inter-Process Communication |
| IRS | Increasing Returns to Scale | Returns to Scale |
| Isolated I/O or I/O-mapped I/O | Port-Mapped I/O | Microcontroller |
| Isolated I/O or Port Mapped | I/O Mapped | Input/Output |
| ISR, Interrupt Handler | Interrupt Service Routine | Interrupt-Driven I/O |
| IVP | Initial Value Problem | Initial Value Problem |
| Jacobi's Law | Maximum Power Transfer Theorem | Network Theorems |
| JavaScript Object Notation | JSON | Application Development |
| Jordan Canonical Form | Jordan Form | Jordan Decomposition |
| Jordan Curve | Simple Closed Contour | Contour |
| JPD | Joint Probability Distribution | Bayesian Network |
| K-Map | Karnaugh Map | Introduction to Combinational Logic |
| Kaplan Turbine | Axial Flow | Turbines |
| KDC | Key Distribution Centre | Kerberos |
| KDF | Key Derivation Functions | Key Derivation Functions |
| Keylogger | Keystroke Logger | Malware |
| Knowledge Factor | Something You Know | Authentication |
| LAN or Physical or Ethernet Address | MAC Address | MAC Protocols |
| Law of Conservation of Energy | 1st Law | 1st Law |
| Laws of Thoughts Approach | Thinking Rationally | Introduction to Artificial Intelligence |
| LBA | Linear-Bounded Automata | Linear-Bounded Automata |
| Legal Assignment | Consistent Assignment | Constraint Satisfaction Problem |
| LER | Label Edge Router | MPLS |
| Level Order Searching | Breadth First Search | Breadth First Search |
| LFSR | Linear Feedback Shift Registers | Linear Feedback Shift Registers |
| Link | Edge | Graph |
| Liquid Events | Processes | Knowledge Representation |
| LLC | Logical Link Control | LAN |
| Long-Term Scheduler | Job Scheduler | CPU Scheduling |
| LPM | Longest Prefix Match | IPv4 |
| LSR | Label Switch Router | MPLS |
| LUT | Lookup Tables | Lookup Tables |
| LWP | Lightweight Process | Thread |
| MAC | Media Access Control | LAN |
| MAC | Message Authentication Code | Message Authentication Code |
| Magnetic Field Intensity | Magnetic Field Strength | Coupled Circuits |
| mailbox/port Based | Indirect | Inter-Process Communication |
| Main Queue | Serial | Implicit Threading |
| Main Switch | Main Circuit Breaker | Household Wiring |
| Manhattan Distance | City-Block Distance | Pixel Connectivity |
| Mask, Template or Window | Filter Kernel | Image Filters |
| McNaughton-Yamada-Thompson Algorithm | Thompson Construction | Thompson Construction |
| MCU | Microcontroller | Microcontroller |
| MCU | Minimum Coded Unit | Preprocessing and Quantization |
| MDP | Markov Decision Process | Markov Decision Process |
| Memory Fence | Memory Barrier | Peterson's Algorithm |
| MEP | Mean Effective Pressure | Gas Power Cycle |
| Message Queuing Telemetry Transport | MQTT | Messaging |
| MIB | Management Information Base | Network Management |
| Midrange Computers | Minicomputers | Introduction to C-Book |
| ML | Machine Learning | Introduction to Artificial Intelligence |
| MLFQ | Multilevel Feedback Queue Scheduling | CPU Scheduling |
| MLQ | Multilevel Queue Scheduling | CPU Scheduling |
| MMU | Memory Management Unit | Memory |
| Module of the Gear Wheel | Pitch | Gears |
| Monotonic | Consistent | Informed Searching |
| MPU | Microprocessor Unit | Microcontroller |
| MRC | Marginal Resource Cost | Stages of Production |
| MRP | Marginal Revenue Product | Stages of Production |
| MTA | Mail Gateway | Email |
| MTBF | Mean Time Between Failures | RAID |
| MTTDL | Mean Time to Data Loss | RAID |
| MTTF | Mean Time to Failure | RAID |
| MTTR | Mean Time to Repair | RAID |
| Multi Edge | Parallel Edge | Graph |
| Multi Protocol Label Switching | MPLS Layer 3 VPN | Extended VLAN |
| Multipurpose Internet Mail Extension | MIME | Email |
| Mutex Semaphore | Binary Semaphore | Semaphore |
| Negative Binomial Distribution | Pascal Distribution | Pascal Distribution |
| Network Attached Storage, NAS | NFS | Network Applications |
| NFA | Non-Deterministic Finite Automaton | Non-Deterministic Finite Automaton |
| NFC | Near Field Communication | Non TCP/IP Wireless Protocols |
| NLP | Natural Language Processing | Introduction to Artificial Intelligence |
| Non-Clustering Index | Secondary Index | Indexing |
| Notch Filters | Band-Reject Filters | Filters |
| NTM | Non-Deterministic TM | Turing Machine |
| Null Production | Λ-Production | Context-Free Grammar |
| NVM | Non-Volatile Memory | Permanent Storage |
| O'scope | Oscilloscope | Lab Apparatus |
| Octet | Byte | Introduction to B-Book |
| OMAC | CMAC | Message Authentication Code |
| One Time Programming Memory | OTP Memory | IP Protection |
| Op-Amp | Operational Amplifier | Operational Amplifier |
| Open-Circuit Impedance Parameters | Z Parameters | Two Port Networks |
| Operator Norm, Subordinate Norm | Induced Norm | Matrix Norms |
| Operator Norm, Subordinate Norm | Induced Matrix Norm | Norms |
| Optimal Asymmetric Encryption Padding | OAEP | Hash Functions |
| Optimality or Admissibility | Cost Optimality | Searching Problem |
| Optional Participation | Partial Participation | Entity Relationship Model |
| Origin Analysis | Software Composition Analysis | Static Analysis |
| Ostrich Algorithm | Ignore | Deadlock |
| OTA | Over-the-Air Programming | Microcontroller Programming |
| Output Feedback | OFB Mode | Block Ciphers |
| Overhead | Indirect Cost | Cost Classification |
| P or Down | Wait | Semaphore |
| Parse Tree | Derivation Tree | Derivation Tree |
| Parsing or Hierarchical Analysis | Syntax Analysis | Compilation |
| PCB, Task Control Block | Process Control Block | Process |
| PCS | Process-Contention Scope | CPU Scheduling |
| PERT | Program Evaluation and Review Technique | Program Evaluation and Review Technique |
| Phase Encoding, or PE | Manchester | Digital to Digital Encoding |
| Phase-Neutral Fault | Short-Circuit Fault | Introduction to Electrical Installations |
| Phrase-Structure Grammar | Unrestricted Grammar | Unrestricted Grammar |
| Pipe Segment | Pipe Stage | Pipelining |
| Planar Embedding | Planar Representation | Planar Graph |
| Planning Domain Definition Language | PDDL | Planning |
| Point Functions | Properties | System |
| Polish Form | Prefix Form | Algebraic Expressions |
| Possession Factor | Something You Have | Authentication |
| POST | Power-On Self Test | System Boot Procedure |
| Post-Protocol | Exit Section | Synchronization |
| PP | Protection Profile | Security Evaluation |
| Pre-Protocol | Entry Section | Synchronization |
| Precision | Degree of Accuracy | Numerical Integration |
| Predetermined Cost, Estimated Future Cost, Expected Cost, Budgeted Unit Cost, or Forecast Cost | Standard Cost | Cost Terms |
| Pressure Turbines | Reaction Turbines | Turbines |
| PRF | Pseudorandom Functions | Pseudorandomness |
| PRG | Pseudorandom Generators | Pseudorandomness |
| Primary Pair | Lower Pair | Mechanisms |
| Probability Space | Probability Model | Uncertainty |
| Producer or Intermediate Goods | Capital Goods | Scarcity and Resources |
| Producer–Consumer Problem (With Finite Buffer) | Bounded Buffer Problem | Critical Section Problem |
| Progression Planning | Forward State-Space Search | Planning Algorithms |
| Proper Vertex Coloring | Vertex Coloring | Vertex Coloring |
| Propogation Delay | Gate Delay | Digital Logic Signals |
| PRP | Pseudorandom Permutations | Pseudorandomness |
| PSK or PK | Phase Shift Keying | Digital to Analog Encoding |
| PSP | Parallel Slave Port | Communication Interfaces |
| PTBR | Page Table Base Register | Memory |
| PTLR | Page Table Length Register | Memory |
| Punctured Neighborhood | Deleted Neighborhood | Introduction to Complex Functions |
| Pure Competition | Perfect Competition | Market Structures |
| Purposive Sampling | Judgement Sampling | Sampling Techniques |
| PVCs | Permanent Virtual Circuits | MAN & WAN |
| Quality Factor | Dryness Fraction | Pure Substances |
| Query Language | DML | Introduction to Database Systems |
| RAID 0+1 | RAID 01 | RAID |
| RAID 1+0 | RAID 10 | RAID |
| RAM | Read Write Memory | Computer Memory |
| RAM Disks | Volatile Storage | Mass Storage Systems |
| Rational Agent Approach | Acting Rationally | Introduction to Artificial Intelligence |
| RBAC | Role-Based Access Control | Access Control |
| Real-Time Operating System | RTOS | Real-Time |
| Recursion-Tree Method | Iteration Method | Recursion |
| Reflected Binary | Gray Codes | Number Systems |
| Regeneration | Preheating | Regenerative Rankine Cycle |
| Regenerator | Feedwater Heater | Regenerative Rankine Cycle |
| Regression Planning | Backward State-Space Search | Planning Algorithms |
| Relocation Register | Base register | Main Memory |
| Repeated Limits | Iterated Limits | Limits |
| Reverse Polish Form | Postfix Form | Algebraic Expressions |
| Reversible Heat Engine | Carnot Heat Engine | Heat Engine |
| RMS | Rate Monotonic Scheduling | Real-Time CPU Scheduling |
| ROB | Reorder Buffer | Speculation |
| RoE | Rules of Engagement | Hybrid Analysis |
| Route Inspection Problem | Chinese Postman Problem | Travelling Problems |
| RPC | Remote Procedure Call | Sockets |
| RS | Reservation Station | Dynamic Scheduling |
| SAC or Bit Diffusion | Strict Avalanche Criterion | Hash Functions |
| Sacrificial Anodic Protection | Galvanic Protection | Prevention of Corrosion |
| Satisfiction | Happiness | Agent Program |
| SBOM | Software Bill of Materials | Secure Software Development Lifecycle |
| SCI | Configuration Item | Source Code Management |
| SCM or Configuration Management (CM) | Source Code Management | Source Code Management |
| SCS | System-Contention Scope | CPU Scheduling |
| Second-Preimage Resistance | Weak Collision Resistance | Hash Functions |
| Security Information and Event Management | SIEM | Networks |
| Sender Policy Framework | SPF | Email |
| Sensitivity, True Positive Rate | Recall | Security Analysis |
| Service-Oriented Architecture | Microservices Architecture | Cloud-Based Software |
| SGT | Service Granting Ticket | Kerberos |
| Shadowing | Mirroring | RAID |
| Shift-Reduce Parsing | Bottom-Up Parsing | Parsing |
| Short-Circuit Admittance Parameters | Y Parameters | Two Port Networks |
| Short-Term Schedular | CPU Scheduler | CPU Scheduling |
| Simple Network Management Protocol | SNMP | SNMP |
| Sine Waves, Sinusoid | Sinusoidal Waves | Waves |
| SJF | Shortest Job First | CPU Scheduling |
| Smart Fuzzing | Generation-based | Dynamic Analysis |
| SMP | Symmetric Multiprocessing | Multiple Processor Scheduling |
| SNR | Signal to Noise Ratio | Signals |
| SoC | Sytem-on-Chip | Optimizations Beyond Pipelining |
| Solvency Ratios | Financial Leverage Ratios | Ratio Analysis |
| SRS | Software Requirements Specification | Requirements Engineering |
| SRTF | Shortest Remaining Time First | CPU Scheduling |
| SSD | Solid State Drives | Permanent Storage |
| SSO | Single Sign-On | Authentication |
| ST | Security Target | Security Evaluation |
| Standard Deviation (Not Common Though) | Standard Error | Sampling Distribution of Mean |
| Stanford Research Institute Problem Solver | STRIPS | Planning |
| Stationary Point | Critical Point | Directional Derivative |
| Statistical TDM | Statistical Time Division Multiplexing | Multiplexing |
| Steam Power Cycle | Vapor Power Cycle | Vapor Power Cycle |
| Stored Procedure | Procedures | Procedures |
| Sub Class, Derived Class | Child Class | Java Basics |
| Suction Stroke | Intake Stroke | OTTO Cycle |
| Surge Chamber | Surge Tank | Generation of Electricity |
| Surjection | Onto | Relations |
| SVCs | Switched Virtual Circuits | MAN & WAN |
| Swapper | Medium-Term Scheduler | CPU Scheduling |
| Synchronous TDM | Synchronous Time Division Multiplexing | Multiplexing |
| Syscall | System Call | Kernel |
| System Catalog | Data Dictionary | Introduction to Database Systems |
| Systems Network Architecture | SNA | OSI Model |
| Systems Security Engineering Capability Maturity Model, ISO/IEC 21827 | SSE-CMM | Security Evaluation |
| Systolic Array | MISD | Optimizations Beyond Pipelining |
| TAGE | Tagged Hybrid Predictor | Branch Prediction |
| Taxicab Norm | 1-Norm | Norms |
| TCB | Trusted Computing Base | Trusted System |
| TCSEC | Orange Book | Trusted System |
| TCSEC, Orange Book | Trusted Computer System Evaluation Criteria | Security Evaluation |
| TD Learning | Temporal Difference Learning | Reinforcement Learning |
| TDC | Top Dead Centre | Gas Power Cycle |
| TGS | Ticket Granting Server | Kerberos |
| TGT | Ticket Granting Ticket | Kerberos |
| The Checkerboard Effect or Blocking | Pixelation | Sampling and Quantization |
| The Dielectric Constant | Relative Permittivity | Dielectric Behavior |
| The profit/volume Ratio | Contribution to Sales Ratio | Cost Volume Profit Analysis |
| Thermal Noise, Gaussian Noise | White Noise | Transmission Errors |
| Three-Point Mid Point Formula | Centered Difference Formula | Numerical Differentiation |
| Ties-Struts Model | Developing axial forces | Trusses |
| Tiles | Block | Preprocessing and Quantization |
| Time Sharing | Multitasking | Introduction to Operating Systems |
| TLP | Task-Level Parallelism | Optimizations Beyond Pipelining |
| TLS | Thread-Local Storage | Threading Issues |
| TOE | Target of Evaluation | Security Evaluation |
| Toggle Flip-Flop | T Flip-Flop | T Flip-Flop |
| Total I/O Block Time | Total Access Time | Permanent Storage |
| TPM | Trusted Platform Module | Trusted Platform Module |
| Traceable Path | Hamiltonian Path | Walk |
| Transport Service Access Point | TSAP | Transport Layer |
| True Power, Resistive Power | Active Power | Power and Power Factor |
| TSF | TOE Security Functions | Security Evaluation |
| TSL | testandset | Critical Section Problem |
| TSP | TOE Security Policy | Security Evaluation |
| Two Metal Corrosion | Galvanic Corrosion | Forms of Corrosion |
| ULA | Unique Local Address | IPv6 |
| Unified Modeling Language | UML | UML |
| Unit Matrix | Identity Matrix | Introduction to Matrices |
| Use Cases View | Scenarios view | Architecture |
| User Agent, Mail Reader | Mail Client | Email |
| User Datagram Protocol or Unreliable Datagram Protocol | UDP | UDP |
| V or Up | Signal | Semaphore |
| VCI | Virtual Circuit Identifier | MAN & WAN |
| VCS | Version Control System | Source Code Management |
| Vector Function | Vector Valued Function | Vector Valued Function |
| Velocity Turbines | Impulse Turbines | Turbines |
| Vertex | Node | Graph |
| Virtual Address | Logical Address | Main Memory |
| Virtual eXtensible Local Area Network | VXLAN over IPsec | Extended VLAN |
| Virtual Machine Monitor | Hypervisor | Virtualization |
| Virtual Private Network | VPN | Networks |
| Virtual Private Networks | VPN | Firewalls |
| VLAN Trunking Protocol | VLAN Trunking Protocol | VLAN Trunking Protocol |
| VPI | Virtual Path Identifier | MAN & WAN |
| WDM | Wavelength Division Multiplexing | Multiplexing |
| WiFi Protected Access | WPA | Networks |
| Wired | Guided | Transmission Media |
| Wired Equivalent Privacy | WEP | Networks |
| Wireless | Unguided | Transmission Media |
| Wireless Application Protocol | WAP | OSI Model |
| Wiretapping | Interception | Networks |
| Working Stroke or Expansion Stroke | Power Stroke | OTTO Cycle |
| Works Cost or Factory Cost | Total Production Cost | Cost Classification |
| X86-64 | X64 | Instruction Set Architecture |
| XSS | Cross-Site Scripting | Web Browsers |
| xUML | Executable UML | UML |