How computer science evolved as a discipline and the origin of modern digital computer makes an interesting study.

The first mechanical calculator was invented by Wilhelm Schickard in the year 1623 and around 1900, punch card machineswere introduced. However, the problem was that all the existent machines performed only a single task or at best only a part of the tasks required.

Computer science found its identity in the 1950s and early 1960s when the first computer science departments were
established and degree programmes were introduced.

The introduction of International Business Machines (IBM) was an epoch-making event. So we had the first IBM 704 and IBM 709 computers. However, at that time, even misplacing one letter in one instruction would result in the whole programme crashing and you would have to restart the process from scratch.

The discipline of Computer Science today comprises a range of topics such as theoretical study of algorithms and the
limitations of computation in terms of implementation of computing systems in hardware and software.